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	<title>涉水模擬 - 星恆科技有限公司</title>
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	<title>涉水模擬 - 星恆科技有限公司</title>
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		<title>網格掰掰！PreonLab CFD流體力學模擬再進化</title>
		<link>https://www.simhex.com/news/%e7%b6%b2%e6%a0%bc%e6%8e%b0%e6%8e%b0%ef%bc%81preonlab-cfd%e6%b5%81%e9%ab%94%e5%8a%9b%e5%ad%b8%e6%a8%a1%e6%93%ac%e5%86%8d%e9%80%b2%e5%8c%96/</link>
		
		<dc:creator><![CDATA[西姆赫克斯]]></dc:creator>
		<pubDate>Mon, 23 Jun 2025 06:56:53 +0000</pubDate>
				<category><![CDATA[最新消息]]></category>
		<category><![CDATA[解決方案]]></category>
		<category><![CDATA[AVL]]></category>
		<category><![CDATA[CFD]]></category>
		<category><![CDATA[PreonLab]]></category>
		<category><![CDATA[刮雨器]]></category>
		<category><![CDATA[平滑粒子流體動力學]]></category>
		<category><![CDATA[撞擊液化]]></category>
		<category><![CDATA[撥水]]></category>
		<category><![CDATA[水管理]]></category>
		<category><![CDATA[流體力學]]></category>
		<category><![CDATA[流體動力學]]></category>
		<category><![CDATA[涉水模擬]]></category>
		<category><![CDATA[灑水]]></category>
		<category><![CDATA[自動駕駛感測器]]></category>
		<category><![CDATA[車身污染]]></category>
		<category><![CDATA[雨刷]]></category>
		<category><![CDATA[齒輪箱潤滑]]></category>
		<guid isPermaLink="false">https://www.simhex.com/?p=3927</guid>

					<description><![CDATA[<p>網格掰掰！PreonLab CFD流體力學模擬再進化 PreonLab 6.0 是由德國 FIFTY2 公司開 [&#8230;]</p>
<p>這篇文章 <a href="https://www.simhex.com/news/%e7%b6%b2%e6%a0%bc%e6%8e%b0%e6%8e%b0%ef%bc%81preonlab-cfd%e6%b5%81%e9%ab%94%e5%8a%9b%e5%ad%b8%e6%a8%a1%e6%93%ac%e5%86%8d%e9%80%b2%e5%8c%96/">網格掰掰！PreonLab CFD流體力學模擬再進化</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
]]></description>
										<content:encoded><![CDATA[
<p class="has-black-color has-text-color has-link-color wp-elements-795cd51de3f768b2e287696d7aac2666" style="font-size:16px">網格掰掰！PreonLab CFD流體力學模擬再進化 </p>



<p class="has-black-color has-text-color has-link-color wp-elements-536140db704b0abee839a7eb98307646" style="font-size:16px">PreonLab 6.0 是由德國 FIFTY2 公司開發的無網格計算流體力學（CFD）模擬軟體，採用平滑粒子流體動力學（SPH）技術，專為處理複雜流體行為與多相流問題而設計。此版本在效能、模擬準確性與使用者體驗方面均有重大突破，特別適用於汽車產業中的涉水模擬、齒輪箱潤滑、車身污染分析及自動駕駛感測器水管理等應用場景。&nbsp;</p>



<h2 class="wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-885a9aee895859f617a1572f4177469c" id="h-preonlab-與-avl"><strong>PreonLab 與 AVL</strong></h2>



<p class="has-black-color has-text-color has-link-color wp-elements-c1c22e33065809c93cbeda94f7e8c106" style="font-size:16px">雖然 PreonLab 是由德國公司 <strong>FIFTY2 Technology GmbH</strong> 開發的產品，但 <strong>AVL（AVL List GmbH）是其官方的全球銷售與技術支援夥伴</strong>。透過 AVL 的全球網絡，PreonLab 能夠更快速推廣至汽車產業與重工機械產業中的 OEM 與 Tier 1 供應商。&nbsp;</p>



<p class="has-black-color has-text-color has-link-color wp-elements-ad7c5f109a8b233c1f5082f8c8d6a292" style="font-size:16px">例如：&nbsp;</p>



<ul style="font-size:16px" class="wp-block-list has-black-color has-text-color has-link-color wp-elements-cff9481d9226303194d088d77e274eb1">
<li class="has-black-color has-text-color has-link-color wp-elements-b25d984d67f66bea5c950f1287a6c1db" style="font-size:16px">AVL 官網直接提供 PreonLab 的產品頁面與解決方案案例。&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-21399ac167c90f110caa0d63c2e747e1" style="font-size:16px">AVL 工程師可支援 PreonLab 的應用與客製模擬流程開發。&nbsp;</li>
</ul>



<p class="has-vivid-cyan-blue-color has-text-color has-link-color wp-elements-243495526574415d666acb07c570ff06" style="font-size:16px">在技術方面上的合作：PreonLab 強化 AVL 在流體模擬領域的解決方案&nbsp;</p>



<p class="has-black-color has-text-color has-link-color wp-elements-0dff9ef1c2974a0d3bf94824b6c80b2c" style="font-size:16px">PreonLab 為 AVL 在虛擬產品開發流程（Virtual Vehicle Development Process）中的一部分，特別在&#8221;無網格流體模擬（SPH）&#8221;方面，填補了傳統 CFD 工具（如 AVL FIRE M、Star-CCM+）在自由表面、多相流與潤滑模擬上的限制。&nbsp;典型應用包括：&nbsp;</p>



<ul class="wp-block-list">
<li class="has-black-color has-text-color has-link-color wp-elements-8bf0574f6a51a140921c0eee67fd48e8" style="font-size:16px"><strong>AVL Driveline </strong><strong>模擬</strong>：齒輪箱潤滑、離合器冷卻油噴霧&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-128183ebffef6378b069d7a42619168a" style="font-size:16px"><strong>AVL Rainwater Management </strong><strong>解決方案</strong>：感測器自潔、涉水風險評估&nbsp;</li>
</ul>



<p class="has-vivid-cyan-blue-color has-text-color has-link-color wp-elements-aae27b46ddb26c388e163e7f4f604bd7" style="font-size:16px">在開發與培訓支援方面的合作：</p>



<p class="has-black-color has-text-color has-link-color wp-elements-99d3c90763fb91051244523334b49092" style="font-size:16px">AVL 亦與 FIFTY2 技術團隊保持研發與客戶支援合作關係，提供客戶完整的 PreonLab 導入流程，包括：&nbsp;</p>



<ul class="wp-block-list">
<li class="has-black-color has-text-color has-link-color wp-elements-4708a860cfd67ceac46e2b59d7dd2d68" style="font-size:16px">技術諮詢與流程整合（與 AVL CRUISE、FIRE M 整合）&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-d2cfe546c4e851426923200771e5281d" style="font-size:16px">客製應用模版（如車身污染分析流程）&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-38777932f6bcdd996e7cbfe3d36ad37b" style="font-size:16px">用戶培訓與技術研討會（例如 AVL TechDay）&nbsp;&nbsp;</li>
</ul>



<p class="has-vivid-cyan-blue-color has-text-color has-link-color wp-elements-299e054bfbabc4faa4ae69e197e2b0c2" style="font-size:16px">在市場定位與品牌協同方面：</p>



<p class="has-black-color has-text-color has-link-color wp-elements-cf4d9afb3c359884a47e428b36160678" style="font-size:16px">AVL 推廣 PreonLab 作為其模擬產品組合中針對“複雜自由表面流體行為”的解決方案，並將其定位為：&nbsp;</p>



<ul class="wp-block-list">
<li class="has-black-color has-text-color has-link-color wp-elements-b47ad8dcf199aaa9ba0a380b88672dec" style="font-size:16px">汽車產業高效潤滑與水管理模擬工具</li>



<li class="has-black-color has-text-color has-link-color wp-elements-af53ecf4522dbb10d2cc68010bf3e8df" style="font-size:16px">高效能且可快速迭代的設計分析工具，適合早期產品開發階段。&nbsp;</li>
</ul>



<p class="has-black-color has-text-color has-link-color wp-elements-09739416c5c0bd3a630af675978f5fc2" style="font-size:16px">這有助於 AVL 擴充其模擬平台，提供更完整的一體化工程服務。&nbsp;</p>



<div style="height:33px" aria-hidden="true" class="wp-block-spacer"></div>



<h2 class="wp-block-heading has-vivid-red-color has-text-color has-link-color has-medium-font-size wp-elements-0db0311617baad2b896db6828977ab6f" id="h-preonlab-6-0主要新功能與亮點介紹-nbsp"><strong>PreonLab 6.0主要新功能與亮點介紹</strong>&nbsp;</h2>



<h3 class="wp-block-heading has-black-color has-text-color has-link-color wp-elements-3fd6d42d6bba2cc92b0be6a504fac925" id="h-1-gpu-加速-nvidia-cuda">1. <strong>GPU 加速（NVIDIA CUDA）</strong></h3>



<p class="has-black-color has-text-color has-link-color wp-elements-bcc5fb3fd2b9a20dba2b53115f421137" style="font-size:16px">PreonLab 6.0 首次引入 GPU 加速功能，利用 NVIDIA CUDA 技術，模擬效能相比傳統多核心 CPU 系統提升最高可達 6 倍。這不僅大幅縮短了模擬時間，還提高了能源效率，為工程師提供更快速的設計迭代與決策支持。&nbsp;</p>



<p class="has-black-color has-text-color has-link-color wp-elements-185907f159a569748cc4f9939dad49a7" style="font-size:16px">該功能將持續更新，目前僅支持一部分功能，啟動GPU模擬時，用戶可以檢查是否滿足GPU條件，具體操作方式：於Scene處新增右鍵選項 &gt; Check GPU compatibility，已確認當前設定可以支持GPU實現加速模擬。&nbsp;</p>





<figure class="wp-block-image size-full"><img fetchpriority="high" decoding="async" width="815" height="386" src="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-1.gif" alt="網格掰掰！PreonLab CFD流體力學模擬再進化
(減速齒輪箱單相流計算時間比較)" class="wp-image-3928"/></figure>



<p class="has-text-align-center has-black-color has-text-color has-link-color has-small-font-size wp-elements-78aa8864335ae391655824f142da3e4c">(減速齒輪箱單相流計算時間比較)</p>



<figure class="wp-block-image size-full"><img decoding="async" width="861" height="395" src="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-2.gif" alt="網格掰掰！PreonLab CFD流體力學模擬再進化
流體動力學 齒輪箱 AVL 離合器" class="wp-image-3929"/></figure>



<p class="has-text-align-center has-black-color has-text-color has-link-color has-small-font-size wp-elements-8146c86aad141878fffd156544f4126c">(減速齒輪箱兩相流計算結果物理時間比較)</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img decoding="async" width="853" height="480" src="https://www.simhex.com/wp-content/uploads/2025/06/2222111.gif" alt="" class="wp-image-3946"/></figure>
</div>


<p class="has-text-align-center has-small-font-size">碰壁射流分析</p>



<p class="has-text-align-center has-black-color has-text-color has-link-color has-small-font-size wp-elements-87f5aada7743606684e23e6d1265a7ac">(基於GPU進行熱模擬，與128核心對比，可提高5.9倍計算效率，節能指數在3-7倍之間)</p>



<div style="height:28px" aria-hidden="true" class="wp-block-spacer"></div>



<h3 class="wp-block-heading has-black-color has-text-color has-link-color wp-elements-4db89b768e588424fd1bf29d54cc2579" id="h-2-新增壁面黏附模型-lateral-adhesion-model-nbsp" style="font-size:16px"><strong>2</strong><strong>. 新增壁面黏附模型（</strong><strong>Lateral Adhesion</strong><strong> </strong><strong>Model</strong><strong>）</strong>&nbsp;</h3>



<p class="has-black-color has-text-color has-link-color wp-elements-9e8f94f552fcdbaef09c610041be87d8" style="font-size:16px">6.0版本新增的實驗性「壁面黏附」模型，可以更準確地模擬水滴在”傾斜表面”上的附著與滑落行為，特別適用於尾門雨水流動、側窗水管理等場景，提升模擬的現實感與準確性。</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="640" height="360" src="https://www.simhex.com/wp-content/uploads/2025/06/23032.gif" alt="" class="wp-image-3949"/></figure>
</div>

<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="677" height="287" src="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-6.gif" alt="網格掰掰！PreonLab CFD流體力學模擬再進化
流體動力學 齒輪箱 AVL 離合器" class="wp-image-3934"/></figure>
</div>


<p class="has-text-align-center has-black-color has-text-color has-link-color has-small-font-size wp-elements-a21f98601bf589a7a93b9a78cc890616">(模型驗證：液滴沿斜面流動)</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="935" height="297" src="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-7.gif" alt="網格掰掰！PreonLab CFD流體力學模擬再進化
流體動力學 齒輪箱 AVL 離合器
雨刮器" class="wp-image-3935"/></figure>



<p class="has-text-align-center has-black-color has-text-color has-link-color has-small-font-size wp-elements-ffb02b444881ecd156e7bdb9a7681735">(基於切向力黏附模型的雨刮器模擬)</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="733" height="407" src="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-8.gif" alt="流體動力學 流體力學
雨水在玻璃上的痕跡" class="wp-image-3936"/></figure>
</div>


<p class="has-text-align-center has-black-color has-text-color has-link-color has-small-font-size wp-elements-a8ce05ebefaa1f445d6305d7eccbea70">(雨水在玻璃窗上的水痕跡)</p>



<div style="height:23px" aria-hidden="true" class="wp-block-spacer"></div>



<h3 class="wp-block-heading has-black-color has-text-color has-link-color wp-elements-69e4509337ec253d83cba4b536920b0e" id="h-3-使用者介面優化-nbsp" style="font-size:16px"><strong>3</strong><strong>. 使用者介面優化</strong>&nbsp;</h3>



<p class="has-black-color has-text-color has-link-color wp-elements-866564f6e8c29b8f7c0eba6feac631f5" style="font-size:16px">改進圖形使用者介面（GUI），包括後處理與操作流暢性，傳感器功能全新支持Pathlines的導出，以便更加清晰的了解液體流通路徑。&nbsp;</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="901" height="370" src="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-9.png" alt="網格掰掰！PreonLab CFD流體力學模擬再進化
流體動力學 齒輪箱 AVL 離合器" class="wp-image-3937" srcset="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-9.png 901w, https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-9-300x123.png 300w, https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-9-768x315.png 768w" sizes="(max-width: 901px) 100vw, 901px" /></figure>
</div>


<p class="has-black-color has-text-color has-link-color wp-elements-309e56c5db17ff60cf4789d319048db4" style="font-size:16px">另外，全新的畫面與更直觀的操作流程，提升了用戶體驗，使模擬設置與結果分析更加高效與愉悅。&nbsp;</p>



<div style="height:27px" aria-hidden="true" class="wp-block-spacer"></div>



<h3 class="wp-block-heading has-black-color has-text-color has-link-color wp-elements-35d1425f41d35c4e1bbdca83ed3ad227" id="h-4-preondock-基於網頁的模擬協作平台-nbsp" style="font-size:16px"><strong>4</strong><strong>. </strong><strong>PreonDock</strong><strong>基於網頁的模擬協作平台</strong>&nbsp;</h3>



<p class="has-black-color has-text-color has-link-color wp-elements-995b99ec2470a2d9778cc4f032847d38" style="font-size:16px">隨著PreonLab在全球客戶中有越來越多的應用，對大量計算文件(傳輸、共享、使用權)的需求日漸增加，<strong>PreonDock</strong> 是一個專為 PreonLab 使用者設計的 <strong>網頁式模擬任務管理與結果分析環境</strong>，讓團隊能跨平台、高效率地協作與追蹤模擬流程，特別適合分布式團隊或需要集中化模擬管理的大型企業研發部門。&nbsp;</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="788" height="367" src="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-10.png" alt="PreonDock" class="wp-image-3938" srcset="https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-10.png 788w, https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-10-300x140.png 300w, https://www.simhex.com/wp-content/uploads/2025/06/網格掰掰！PreonLab-CFD流體力學模擬再進化-10-768x358.png 768w" sizes="(max-width: 788px) 100vw, 788px" /></figure>
</div>


<p class="has-text-align-center has-black-color has-text-color has-link-color wp-elements-ea589974dbe9757eced6574fc17927ad">(PreonDock使用介面)</p>



<h2 class="wp-block-heading has-black-color has-text-color has-link-color wp-elements-7c43c2c8bdf4556063d60ccb9fe254c6" id="h-團隊協作優勢-nbsp" style="font-size:16px">團隊協作優勢&nbsp;</h2>



<ul class="wp-block-list">
<li class="has-black-color has-text-color has-link-color wp-elements-8205c6526f93e18631ae13ac37d92fe2" style="font-size:16px">多人可透過同一介面同時進行項目查看與討論&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-9ed656b7802523a1fa7e189d93137908" style="font-size:16px">提供遠端監看功能，便於跨部門合作&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-b10613dbb19df2f0fc2b2ba88b0079d0" style="font-size:16px">無需安裝客戶端軟體，透過瀏覽器直接使用&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-5fac2835825c6a0fa9c3cab0578300f0" style="font-size:16px">支援與HPC，PreonLab的模擬結果可以無縫連接&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-c3f00e0c5862c60634719cfa46ec9b87" style="font-size:16px">方便資料清理與版本管理&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-e963cca7528de7fbab47b502ea3a16d5" style="font-size:16px">允許添加註解、標籤與項目分類&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-a92bcf913975e1c1500cb59379528dc7" style="font-size:16px">可自動生成統計圖表與關鍵數據摘要&nbsp;</li>



<li class="has-black-color has-text-color has-link-color wp-elements-f6f485a3f8072db425e0a59c10304155" style="font-size:16px">可比對不同模擬項目之間的差異，便於設計決策</li>
</ul>



<div style="height:100px" aria-hidden="true" class="wp-block-spacer"></div>



<p class="has-black-color has-text-color has-link-color wp-elements-bff352093889ccabacc8d3f7f1d3ea83" style="font-size:16px"><a href="https://www.simhex.com/contact-us/">星恆</a>擁有可靠的技術與人才，有任何相關問題都歡迎來信或來電討論指教，幫您量身打造符合需求的解決方案。</p>



<p class="has-black-color has-text-color has-link-color wp-elements-1bcc3dad43accd896ec73f511dbec849" style="font-size:16px">想 更 清 楚 的 了 解 網格掰掰！PreonLab CFD流體力學模擬再進化&nbsp; &nbsp;，歡 迎 來 電 (02)2712-8448 或是&nbsp;<a href="https://www.simhex.com/contact-us/">來 信</a>。</p>



<p class="has-black-color has-text-color has-link-color wp-elements-d65a70699643fff0e78bfb4aef47382b" style="font-size:16px">If you want to know more details from AVL&nbsp;<a href="https://www.simhex.com/preonlab-%E7%84%A1%E7%B6%B2%E6%A0%BCcfd/">Preonlab</a>&nbsp;,please contact&nbsp;<a href="https://www.simhex.com/contact-us/">Simhex</a>.</p>



<h2 class="wp-block-heading" id="h-avl-nbsp-preonlab-的優勢">AVL&nbsp;<strong>Preonlab 的優勢</strong></h2>



<p class="has-black-color has-text-color has-link-color wp-elements-be80560cd2ddd1759596a07ed5b920f3" style="font-size:16px">AVL Preonlab 是一款無網格的 CFD 分析工具，不受限於複雜的前處理過程、或是移動網格的生成手法，對於涉及複雜幾何與動態過程的模擬具有先天的優勢，重要功能特色有以下幾點：</p>



<p class="has-black-color has-text-color has-link-color wp-elements-f46b347b1b6f0405d704bb34fe28369b" style="font-size:16px">◆ 連續粒子尺寸設置 (Continuous Particle Size, CPS)</p>



<p class="has-black-color has-text-color has-link-color wp-elements-f05c49b8bdd21eb12fbd3b1a0a3ea0b8" style="font-size:16px">◆ 壁面粒子細化功能</p>



<p class="has-black-color has-text-color has-link-color wp-elements-57c2bc339111c20d90dcb2b0599d6d67" style="font-size:16px">◆ 基於 Keyframe 功能的運動規律定義</p>



<p class="has-black-color has-text-color has-link-color wp-elements-c61a96b37b8c516190cd23736bc3cbfa" style="font-size:16px">◆ 通過後處理傳感器 (sensor) ，進行受力、液體分佈、濕壁位置等分析</p>



<p class="has-black-color has-text-color has-link-color wp-elements-35be304a20b6eea61bf0d6e713618b6e" style="font-size:16px">◆ 基於 Preonlab 的 python API：PreonPy，提升建模與後處理的效率</p>



<p class="has-black-color has-text-color has-link-color wp-elements-f50dfbef3d66ae257dda067a9a81b12d" style="font-size:16px">◆ Preonlab 可以輸出真實感的渲染效果動畫</p>



<p class="has-black-color has-text-color has-link-color wp-elements-4ab86509ecc34a3fe9458f8ffe312be1"><strong>Advantages of Using PreonLab</strong></p>



<p class="has-black-color has-text-color has-link-color wp-elements-251c7f21812139930e285bffa882103d">PreonLab is a meshless CFD analysis tool that avoids the complexities of traditional preprocessing or the generation of moving meshes. It is particularly advantageous for simulating scenarios involving complex geometries and dynamic processes. Key features include:</p>



<p class="has-black-color has-text-color has-link-color wp-elements-4df790b440acf5007eafc9bc6dc3599f">◆&nbsp;<strong>Continuous Particle Size (CPS):</strong>&nbsp;Enables flexible particle size configurations for enhanced simulation accuracy.</p>



<p class="has-black-color has-text-color has-link-color wp-elements-794b7e83be60ad0d063b3d290fd9590b">◆&nbsp;<strong>Wall Particle Refinement:</strong>&nbsp;Allows detailed resolution near walls for more precise results.</p>



<p class="has-black-color has-text-color has-link-color wp-elements-6661c27ec93b9102d92c13f64b6ef68c">◆&nbsp;<strong>Keyframe-Based Motion Definition:</strong>&nbsp;Facilitates the intuitive setup of motion patterns.</p>



<p class="has-black-color has-text-color has-link-color wp-elements-190606b84a2bfa81ddaef58d20743c28">◆&nbsp;<strong>Post-Processing Sensors:</strong>&nbsp;Analyze forces, liquid distribution, and wet wall locations using embedded sensors.</p>



<p class="has-black-color has-text-color has-link-color wp-elements-fd22a59d5eb8f9d809c804ee4bf25001">◆&nbsp;<strong>Python API (PreonPy):</strong>&nbsp;Boosts modeling and post-processing efficiency with scripting capabilities.</p>



<p class="has-black-color has-text-color has-link-color wp-elements-ff8ffc6eebab03554d896c166f74e082">◆&nbsp;<strong>Realistic Rendering Animations:</strong>&nbsp;Outputs high-quality, realistic animations for better visualization.</p>



<h2 class="wp-block-heading has-black-color has-text-color has-link-color wp-elements-5a81fe2bc43c3446a0a49cb4a2b5e2e6" id="h-avl-nbsp-preonlab的運作方式">AVL&nbsp;<strong>PreonLab的運作方式</strong></h2>



<p class="has-black-color has-text-color has-link-color wp-elements-80d6f0662da49814b3bcf8c5a0fa183e" style="font-size:16px">與傳統的計算 流體動力學 ( CFD ) 不同，PreonLab 的模擬採用無網格技術。這不僅簡化了模型的建立過程，也在模擬牛頓流體和非牛頓流體時提供了快速且高效的處理時間。不論您是進行趨勢分析還是尋求精準的預測，PreonLab 都能滿足需求。</p>



<p class="has-black-color has-text-color has-link-color wp-elements-d3e5cd4afe05ade1434576efda31428e" style="font-size:16px">在軟體開發過程中，易用性一直是特別重要的考量。因此，PreonLab 被設計成讓每位用戶只需稍加培訓便能直覺地應用於日常工作中。</p>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="has-black-color has-text-color has-link-color has-medium-font-size wp-elements-3b5b0c1c9a05b38b3119e4dd3ce40384"><em><strong>在不犧牲結果品質的前提下，使開發過程儘可能高效。</strong></em></p>
</blockquote>



<p class="has-black-color has-text-color has-link-color wp-elements-01dd851afe104762070bc5e900aaf4a7"><strong>How PreonLab Works</strong><br>In contrast to classical CFD , the simulations in PreonLab are meshless. This not only simplifies model creation. It gives you short and powerful turnaround times when simulating Newtonian and non-Newtonian fluids. Regardless of whether you want trend analysis or precise predictions.</p>



<p class="has-black-color has-text-color has-link-color wp-elements-41304291e596d87699389421490260ab">Ease of use was and still is particularly important in the development of the software. Thus, it was designed so that every user can use it intuitively in his daily work with a little training.</p>



<p class="has-black-color has-text-color has-link-color wp-elements-6b78a1ebe3fca661fe2cb760ed3bc75b">The goal has always been: to make development as efficient as possible without compromising on the quality of the results.</p>



<div style="height:34px" aria-hidden="true" class="wp-block-spacer"></div>



<ul class="wp-block-list">
<li class="has-medium-font-size"><strong>延伸閱讀</strong>
<ul class="wp-block-list has-black-color has-text-color has-link-color wp-elements-4a3a0dd43f54bbbe82b5da8f67514b3b">
<li style="font-size:16px"><a href="https://www.simhex.com/case/%e5%be%9e%e5%99%b4%e5%98%b4%e5%88%b0%e6%8e%92%e6%b0%b4%e7%b3%bb%e7%b5%b1%ef%bc%9apreonlab%e5%8a%a9%e5%8a%9b%e6%b4%97%e7%a2%97%e6%a9%9f%e5%85%a8%e6%b5%81%e7%a8%8b%e8%a8%ad%e8%a8%88%e6%a8%a1%e6%93%ac/">從噴嘴到排水系統：PreonLab助力洗碗機全流程設計模擬</a></li>



<li style="font-size:16px"><a href="https://www.simhex.com/news/%e9%9b%bb%e6%b3%b3%e5%84%aa%e5%8c%96-avl-preonlab-cfd%e8%a8%88%e7%ae%97%e6%b5%81%e9%ab%94%e5%8a%9b%e5%ad%b8/">電泳優化 (下)</a></li>



<li style="font-size:16px"><a href="https://www.simhex.com/news/%e9%9b%bb%e6%b3%b3%e5%84%aa%e5%8c%96-avl-preonlab-cfd%e8%a8%88%e7%ae%97%e6%b5%81%e9%ab%94%e5%8a%9b%e5%ad%b8/">電泳優化 (上)</a></li>



<li style="font-size:16px"><a href="https://www.simhex.com/case/information/preonlab%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e5%88%86%e6%9e%90/">PreonLab光滑粒子分析 CPS與自適應細化功能應用</a></li>



<li style="font-size:16px"><a href="https://www.avl.com/-/preonlab-5-1-release">AVL PreonLab 5.1 Release</a></li>



<li style="font-size:16px"><a href="https://www.simhex.com/preonlab-%e7%84%a1%e7%b6%b2%e6%a0%bccfd/">AVL PreonLab 無網格CFD模擬技術</a></li>



<li style="font-size:16px"><a href="https://www.simhex.com/news/%e6%96%b0%e7%89%88-preonlab-5-1-%e7%99%bc%e5%b8%83-%e6%9b%b4%e8%b2%bc%e8%bf%91%e7%9c%9f%e5%af%a6%e6%87%89%e7%94%a8/">新版 PreonLab 5.1 發布: 更貼近真實應用</a></li>



<li style="font-size:16px"><a href="https://www.simhex.com/case/information/preonlab%e7%84%a1%e7%b6%b2%e6%a0%bc%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e6%b5%81%e5%a0%b4%e5%88%86%e6%9e%90/">新版PreonLab 5.2 無網格光滑粒子流場分析</a></li>
</ul>
</li>
</ul>
<p>這篇文章 <a href="https://www.simhex.com/news/%e7%b6%b2%e6%a0%bc%e6%8e%b0%e6%8e%b0%ef%bc%81preonlab-cfd%e6%b5%81%e9%ab%94%e5%8a%9b%e5%ad%b8%e6%a8%a1%e6%93%ac%e5%86%8d%e9%80%b2%e5%8c%96/">網格掰掰！PreonLab CFD流體力學模擬再進化</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
]]></content:encoded>
					
		
		
			</item>
		<item>
		<title>PreonLab光滑粒子分析 CPS與自適應細化功能應用</title>
		<link>https://www.simhex.com/case/information/preonlab%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e5%88%86%e6%9e%90/</link>
		
		<dc:creator><![CDATA[西姆赫克斯]]></dc:creator>
		<pubDate>Wed, 27 Jul 2022 06:35:31 +0000</pubDate>
				<category><![CDATA[技術資料]]></category>
		<category><![CDATA[最新消息]]></category>
		<category><![CDATA[AVL]]></category>
		<category><![CDATA[CAE]]></category>
		<category><![CDATA[CAE軟體]]></category>
		<category><![CDATA[PreonLab]]></category>
		<category><![CDATA[光滑粒子]]></category>
		<category><![CDATA[涉水模擬]]></category>
		<category><![CDATA[無網格]]></category>
		<category><![CDATA[無網格CFD]]></category>
		<category><![CDATA[熱力學]]></category>
		<category><![CDATA[車輛涉水]]></category>
		<category><![CDATA[車輛涉水分析]]></category>
		<category><![CDATA[連續粒徑]]></category>
		<guid isPermaLink="false">https://www.simhex.com/?p=2224</guid>

					<description><![CDATA[<p> PreonLab光滑粒子分析  With our recent release of PreonLab 5. [&#8230;]</p>
<p>這篇文章 <a href="https://www.simhex.com/case/information/preonlab%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e5%88%86%e6%9e%90/">PreonLab光滑粒子分析 CPS與自適應細化功能應用</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
]]></description>
										<content:encoded><![CDATA[<p><span style="font-size: 10px;"> PreonLab光滑粒子分析 </span></p>
<p><span style="font-size: 10px;">With our recent release of PreonLab 5.2, which was a very special release for us, we introduced our new feature – Continuous Particle Size (CPS), where particles can have any size in a user defined range.In this article, we shall take a look at the development of adaptive refinement and coarsening in PreonLab and the benefits of CPS along with the challenges and limitations that go with it.</span></p>
<p>&nbsp;</p>
<p>以往為了兼顧模擬結果的準確度，PreonLab會捕捉計算範圍內的幾何形狀、並根據模型的規模選擇需要的粒徑，若使用單一分辨率會造成非常久的模擬時間與龐大的計算量。</p>
<h4>從圖1中可以觀察到，在<span style="font-size: 16px;">涉水分析</span>中，由於汽車周圍的幾何較複雜，粒子也需要較高的分辨率，但由於採用均勻分辨率，遠離車體的粒子也同樣是較小的粒徑。</h4>
<p><figure id="attachment_2227" aria-describedby="caption-attachment-2227" style="width: 887px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="size-full wp-image-2227" src="https://www.simhex.com/wp-content/uploads/2022/07/使用均勻分辨率於車輛涉水分析.png" alt="使用均勻分辨率於車輛涉水分析" width="887" height="497" srcset="https://www.simhex.com/wp-content/uploads/2022/07/使用均勻分辨率於車輛涉水分析.png 887w, https://www.simhex.com/wp-content/uploads/2022/07/使用均勻分辨率於車輛涉水分析-300x168.png 300w, https://www.simhex.com/wp-content/uploads/2022/07/使用均勻分辨率於車輛涉水分析-768x430.png 768w" sizes="(max-width: 887px) 100vw, 887px" /><figcaption id="caption-attachment-2227" class="wp-caption-text">圖一 使用均勻分辨率於車輛涉水分析</figcaption></figure></p>
<p>&nbsp;</p>
<p>我們可以很清楚地理解到，基於網格劃分的CFD可以自由調整網格密度以及大小，相對於均勻粒徑或是粒徑侷限在一定範圍內的 光滑粒子 ，肯定是擁有更高的計算效率。為了克服這個一直以來存在的問題，PreonLab在近年來投入大量的研究資源，希望發展出非均勻分辨率的光滑粒子法。</p>
<p>&nbsp;</p>
<p>非均勻分辨率(non-uniform resolution)又稱自適應細化(adaptive refinement)，挑戰的目標是粒子的分裂與合併，細化需要粒子分裂，粗話需要粒子合併，其中，粗化步驟更具挑戰性。舉例來說，一個大粒子需要分成八個更細的粒子，其質量為初始粒子的1/8，相反的，在粗化時，八個細顆粒需要彼此靠近以合併為一個質量為8倍的大顆粒，可以參考圖二。</p>
<p><figure id="attachment_2226" aria-describedby="caption-attachment-2226" style="width: 878px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="size-full wp-image-2226" src="https://www.simhex.com/wp-content/uploads/2022/07/3D-SPH非均勻分辨率所需的細化與粗化步驟.png" alt="3D SPH非均勻分辨率所需的細化與粗化步驟" width="878" height="379" srcset="https://www.simhex.com/wp-content/uploads/2022/07/3D-SPH非均勻分辨率所需的細化與粗化步驟.png 878w, https://www.simhex.com/wp-content/uploads/2022/07/3D-SPH非均勻分辨率所需的細化與粗化步驟-300x129.png 300w, https://www.simhex.com/wp-content/uploads/2022/07/3D-SPH非均勻分辨率所需的細化與粗化步驟-768x332.png 768w" sizes="(max-width: 878px) 100vw, 878px" /><figcaption id="caption-attachment-2226" class="wp-caption-text">圖二 3D SPH非均勻分辨率所需的細化與粗化步驟</figcaption></figure></p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>在粗化過程中，小粒子之間必須具有相似的速度，以便合併時保持動量，如果不滿足合併條件，模型就會存在剩餘粒子。此外，粗化與細化因為粒子的分布發生改變，直接導致採樣與密度噪聲的問題。</p>
<p>&nbsp;</p>
<h3><span style="font-size: 16px;">連續粒徑(Continuous Particle Size，CPS)於最新的<a href="https://www.fifty2.eu/innovation/continuous-particle-size-cps-and-adaptive-refinement/">PreonLab 5.2</a>版本中，針對光滑粒子於CFD應用有著突破性的發展，其成就來自於過去每個版本中一步步的修正與進步。</span></h3>
<p>&nbsp;</p>
<p>於圖三中可以清楚看到，靠近車體幾何外型的粒徑小於遠離車體的粒徑，使用粗化功能後，顆粒數量減少高達64倍，有效節省計算資源並加快運算速度。圖四說明大尺比靈活度使得模擬細小通道變得更方便有效。</p>
<p><figure id="attachment_2228" aria-describedby="caption-attachment-2228" style="width: 837px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="wp-image-2228 size-full" title="Preonlab光滑粒子分析 於車輛涉水分析" src="https://www.simhex.com/wp-content/uploads/2022/07/使用非均勻分辨率於車輛涉水分析.png" alt="使用非均勻分辨率於車輛涉水分析" width="837" height="467" srcset="https://www.simhex.com/wp-content/uploads/2022/07/使用非均勻分辨率於車輛涉水分析.png 837w, https://www.simhex.com/wp-content/uploads/2022/07/使用非均勻分辨率於車輛涉水分析-300x167.png 300w, https://www.simhex.com/wp-content/uploads/2022/07/使用非均勻分辨率於車輛涉水分析-768x429.png 768w" sizes="(max-width: 837px) 100vw, 837px" /><figcaption id="caption-attachment-2228" class="wp-caption-text">圖三 使用非均勻分辨率於車輛涉水分析</figcaption></figure></p>
<p>&nbsp;</p>
<p><figure id="attachment_2230" aria-describedby="caption-attachment-2230" style="width: 1158px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="wp-image-2230 size-full" title="Preonlab光滑粒子分析" src="https://www.simhex.com/wp-content/uploads/2022/07/粗顆粒的直徑為32mm，細顆粒的直徑為2mm.png" alt="Preonlab光滑粒子分析 自適應細化" width="1158" height="704" srcset="https://www.simhex.com/wp-content/uploads/2022/07/粗顆粒的直徑為32mm，細顆粒的直徑為2mm.png 1158w, https://www.simhex.com/wp-content/uploads/2022/07/粗顆粒的直徑為32mm，細顆粒的直徑為2mm-300x182.png 300w, https://www.simhex.com/wp-content/uploads/2022/07/粗顆粒的直徑為32mm，細顆粒的直徑為2mm-1024x623.png 1024w, https://www.simhex.com/wp-content/uploads/2022/07/粗顆粒的直徑為32mm，細顆粒的直徑為2mm-768x467.png 768w" sizes="(max-width: 1158px) 100vw, 1158px" /><figcaption id="caption-attachment-2230" class="wp-caption-text">圖四 粗顆粒的直徑為32mm，細顆粒的直徑為2mm</figcaption></figure></p>
<p>&nbsp;</p>
<p>Preonlab光滑粒子分析 CPS的好處不僅限於複雜的流動與幾何形狀，還有關於熱力學的應用。</p>
<p>The benefits of CPS are not only limited to complex flows and geometries, but are also applicable for <b>Thermodynamic applications</b>.</p>
<p>&nbsp;</p>
<p>在許多情況下，計算熱力梯度會要求使用較細的粒子，CPS的主動粗化功能就能在控制計算工作量上有良好的體現。目前最粗與最細的推薦尺寸為2<sup>4</sup>倍，其代表在3D模型中，最粗顆粒為最細顆粒直徑的16倍，粒子數量可以講少多達4,096倍，在某些特殊情況下，甚至可以將比例提高到2<sup>5</sup>倍，節大約32,000倍的粒子數量。</p>
<p>Currently the maximum recommended size ratio between the coarsest and finest particles is 2<sup>4</sup>. This means that for 3D simulations, the coarsest particle can have a diameter which is 16 times larger than the diameter of the fine particles. With this, the number of particles in the simulation can already be reduced by up to 4096 times. However, it is even possible in certain cases to push this ratio to 2<sup>5</sup>. As a result, we would save around 32,000 times the number of particles.</p>
<p>All of this implies that simulations which previously required weeks to run, can now be performed in a matter of days and simulations which previously required several days can be performed within a few hours – a game-changer indeed!</p>
<p>&nbsp;</p>
<p>另外，CPS使用的求解器是同一個而非被切割成多個求解器，帶來另一個好處是大幅提升了渲染與後處理的生成速度。</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p><em>新版PreonLab 5.2 無網格光滑粒子流場分析 <strong>更新如下:</strong></em></p>
<ul>
<li><em><strong>連續粒徑:</strong>自由設定粒徑且靈活調整粗細,大幅提升渲染與後處理的生成速度。</em></li>
<li><em><strong>多相流-</strong>導入新的時間步長設定且允許使用者調整實際體積模數值,提高模擬的精準度。</em></li>
<li><em><strong>熱力學-</strong>增強的傳感器功能和靈活的粒徑調整功能，使模型更能貼近真實。</em></li>
<li><em><strong>涉水模擬-</strong>車輛的涉水分析並擁有虛擬駕駛邏輯與強大的車輛懸吊模型。</em></li>
<li><em><strong>可用性與工作流程-</strong>支援CAD文件格式匯入,數據檔案小且快速匯出。在材料性質資料庫中更加方便獲取正確的數據。</em></li>
</ul>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p><a href="https://www.simhex.com/contact-us/">星恆</a>擁有可靠的技術與人才，有任何相關問題都歡迎來信或來電討論指教，幫您量身打造符合需求的解決方案。</p>
<p style="text-align: left;">想更清楚的了解 <span style="font-size: 12px;"><span style="font-size: 16px;">新版 <a href="https://www.simhex.com/preonlab-%e7%84%a1%e7%b6%b2%e6%a0%bccfd/"><code>PreonLab</code>光滑粒子分析</a> </span></span>，歡 迎 來 電 (02)2712-8448 或是 <a href="https://www.simhex.com/contact-us/">來 信</a>。</p>
<p style="text-align: left;">If you want to know more details from <a href="https://www.simhex.com/preonlab-%e7%84%a1%e7%b6%b2%e6%a0%bccfd/"><span style="font-size: 12px;"><span style="font-size: 16px;"><code>PreonLab</code> 5.2</span></span></a> ,please contact <a href="https://www.simhex.com/contact-us/">Simhex</a>.</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<ul>
<li><span style="font-size: 20px;"><strong>延伸閱讀</strong></span>
<ul>
<li><span style="font-family: georgia, palatino, serif; font-size: 16px;"><a href="https://www.avl.com/-/preonlab-5-1-release">AVL PreonLab 5.1 Release</a></span></li>
<li><span style="font-family: georgia, palatino, serif; font-size: 16px;"><a href="https://www.simhex.com/preonlab-%e7%84%a1%e7%b6%b2%e6%a0%bccfd/">AVL PreonLab 無網格CFD模擬技術</a></span></li>
<li><span style="font-family: georgia, palatino, serif; font-size: 16px;"><a href="https://www.simhex.com/news/%e6%96%b0%e7%89%88-preonlab-5-1-%e7%99%bc%e5%b8%83-%e6%9b%b4%e8%b2%bc%e8%bf%91%e7%9c%9f%e5%af%a6%e6%87%89%e7%94%a8/">新版 PreonLab 5.1 發布: 更貼近真實應用</a></span></li>
<li><a href="https://www.simhex.com/case/information/preonlab%e7%84%a1%e7%b6%b2%e6%a0%bc%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e6%b5%81%e5%a0%b4%e5%88%86%e6%9e%90/">新版PreonLab 5.2 無網格光滑粒子流場分析</a></li>
</ul>
</li>
</ul>
<p>這篇文章 <a href="https://www.simhex.com/case/information/preonlab%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e5%88%86%e6%9e%90/">PreonLab光滑粒子分析 CPS與自適應細化功能應用</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
]]></content:encoded>
					
		
		
			</item>
		<item>
		<title>新版PreonLab 5.2 無網格光滑粒子流場分析</title>
		<link>https://www.simhex.com/case/information/%e6%96%b0%e7%89%88preonlab-5-2-%e7%84%a1%e7%b6%b2%e6%a0%bc%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e6%b5%81%e5%a0%b4%e5%88%86%e6%9e%90/</link>
		
		<dc:creator><![CDATA[西姆赫克斯]]></dc:creator>
		<pubDate>Thu, 14 Jul 2022 07:40:28 +0000</pubDate>
				<category><![CDATA[技術資料]]></category>
		<category><![CDATA[最新消息]]></category>
		<category><![CDATA[AVL]]></category>
		<category><![CDATA[CFD軟體]]></category>
		<category><![CDATA[PreonLab]]></category>
		<category><![CDATA[光滑粒子流場分析]]></category>
		<category><![CDATA[多相流]]></category>
		<category><![CDATA[涉水分析]]></category>
		<category><![CDATA[涉水模擬]]></category>
		<category><![CDATA[無網格CFD]]></category>
		<category><![CDATA[熱力學]]></category>
		<category><![CDATA[車輛涉水]]></category>
		<category><![CDATA[連續粒徑]]></category>
		<guid isPermaLink="false">https://www.simhex.com/?p=2198</guid>

					<description><![CDATA[<p>新發布: 新版PreonLab 5.2 無網格光滑粒子流場分析  &#160; CONTINOUS PARTI [&#8230;]</p>
<p>這篇文章 <a href="https://www.simhex.com/case/information/%e6%96%b0%e7%89%88preonlab-5-2-%e7%84%a1%e7%b6%b2%e6%a0%bc%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e6%b5%81%e5%a0%b4%e5%88%86%e6%9e%90/">新版PreonLab 5.2 無網格光滑粒子流場分析</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
]]></description>
										<content:encoded><![CDATA[<p style="text-align: left;"><span style="font-size: 12px; font-family: arial, helvetica, sans-serif;">新發布: 新版PreonLab 5.2 無網格光滑粒子流場分析 </span></p>
<p>&nbsp;</p>
<h1 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>CONTINOUS PARTICLE SIZE (CPS) </strong><strong>連續粒徑</strong></span></h1>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">作為CFD軟體的重要功能之一， PreonLab 已於兩年前導入了粒子局部細化功能，可以將運算資源集中在重要關注的區域，支援3個階段的分辨率，中級粒徑為低級粒徑的4倍，高級粒徑為中級粒徑的2倍，換句話說，理論上粒子數的限制為64倍。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;"> PreonLab 不單擴增了分辨率的階段，更是將此限制直接取消，在 5.2 版本中，每個粒子都能設定自身的粒徑，實現了前所未有的幾何適應性，更能幫助粒子在不關注的位置合理的粗化，減少粒子總數，此新功能稱為連續粒徑。</span></p>
<h2 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">因為CPS使用的求解器是同一個而非被切割成多個求解器，帶來另一個好處是大幅提升了渲染與後處理的生成速度。</span></h2>
<p>&nbsp;</p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">Previously, PreonLab supported up to 3 resolution levels:  The middle level had twice the diameter of the finest level and the coarsest level had four times this diameter. This means that the theoretical limit for particle count reduction (and therefore speedup) was 64,  because doubling the particle diameter increases the particle volume by a factor of 8.  One of the most frequent feature requests was the addition of a fourth resolution level, which would increase this factor to 512.</span></p>
<p>&nbsp;</p>
<p><span style="font-family: arial, helvetica, sans-serif;">PreonLab 5.2 delivers that but it doesn’t stop here. Instead of adding one more level, we abolished the whole concept of levels. In PreonLab 5.2, every particle stores its own size. This does not only allow for unprecedented adaptivity, it also greatly helps with coarsening. Instead of having to find 8 smaller particles which are combined into a bigger particle, the new coarsening can simply combine any amount of suitable neighboring particles into one. This means that fine particles outside refinement zones are coarsened much faster, reducing the overall particle count. We call this new feature Continuous Particle Size (CPS).</span></p>
<p>&nbsp;</p>
<h4 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">A great side effect of CPS is that usability is also improved. Instead of three solver objects (one for each level), all particles are now contained in a single solver.</span></h4>
<p><figure id="attachment_2201" aria-describedby="caption-attachment-2201" style="width: 650px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="wp-image-2201 " src="https://www.simhex.com/wp-content/uploads/2022/07/PreoLab在邊界處進行粒子細化.png" alt="新版PreonLab 5.2 無網格光滑粒子流場分析 : PreoLab在邊界處進行粒子細化" width="650" height="407" srcset="https://www.simhex.com/wp-content/uploads/2022/07/PreoLab在邊界處進行粒子細化.png 784w, https://www.simhex.com/wp-content/uploads/2022/07/PreoLab在邊界處進行粒子細化-300x188.png 300w, https://www.simhex.com/wp-content/uploads/2022/07/PreoLab在邊界處進行粒子細化-768x481.png 768w" sizes="(max-width: 650px) 100vw, 650px" /><figcaption id="caption-attachment-2201" class="wp-caption-text"></span> <span style="font-family: arial, helvetica, sans-serif;">圖一:PreoLab在邊界處進行粒子細化</span></figcaption></figure></p>
<p>&nbsp;</p>
<h3 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>MULTIPHASE </strong><strong>多相流</strong></span></h3>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">一般來說，執行多相流是比較具挑戰性的，尤其當兩種流體之間的密度比很高時。考慮到這個問題，PreonLab 5.1已經將多相模擬導入，使其以更有效率的方式進行計算，事實證明對於大型齒輪箱以及其高轉速下的模擬結果非常有幫助。</span></p>
<h2 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;"><a href="https://www.fifty2.eu/innovation/preonlab-5-2-released/">PreonLab 5.2</a> 通過導入新的時間步長設定改進了多相流模擬功能，即使在更困難的計算中也達到模擬的可靠性；另一個新功能允許使用者調整實際體積模數值，提高模擬的精準度，改善工作設定流程。</span></h2>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">PreonLab 5.1 has made it possible to perform such multiphase simulations in an efficient way. This has proven to be highly advantageous in order to achieve more realistic simulation results for large gearboxes and for cases where high rotational speeds are involved.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">PreonLab 5.2 further improves multiphase simulations by introducing a <strong>new time-stepping method</strong>, which enhances the reliability of simulations even with more challenging setups.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">Another new feature in PreonLab 5.2 allows the usage of<strong> real bulk modulus values</strong>, which enhances the quality and accuracy of the simulation and improves the workflow by eliminating the need to fine-tune setup parameters.</span></p>
<p><iframe src="//www.youtube.com/embed/S9K2LY8o3qE?t=4s" width="560" height="314" allowfullscreen="allowfullscreen"></iframe></p>
<p style="text-align: left;"><span style="font-size: 10px; font-family: arial, helvetica, sans-serif;">(影片: <a href="https://www.youtube.com/watch?v=S9K2LY8o3qE&amp;t=4s">https://www.youtube.com/watch?v=S9K2LY8o3qE&amp;t=4s</a>)</span></p>
<p>&nbsp;</p>
<h4 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>THERMODYNAMICS </strong><strong>熱力學</strong></span></h4>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">在 PreonLab 5.2 中，新的體積熱源功能被允許在單求解器中設定，另外，平面傳感器也支援輸出實體的計算結果，獲取溫度的截面分布圖。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">當溫度變化造成流體密度改變時， PreonLab 5.2 建立更靈活的粒徑調整功能，使模型更能貼近真實。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">In PreonLab 5.2, a new heat field feature allows the application of a volumetric heat source on individual solvers. The influence of such a heat field can be controlled either by using a solid as a boundary volume or by employing a point cloud resource object with the relevant spatial sampling points.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">Furthermore, Sensor plane objects are now compatible with solid volume solvers. Use it to get cross-sectional information about the temperature distribution, e.g., within the windings of an e-motor.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">PreonLab 5.2 includes a new temperature-based density implementation that makes use of the new particle size flexibility to adjust the volume of the particles as a response to density changes. It provides a more realistic model for applications relying on this phenomenon.</span></p>
<div></div>
<div></div>
<p><figure id="attachment_2202" aria-describedby="caption-attachment-2202" style="width: 650px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="wp-image-2202" src="https://www.simhex.com/wp-content/uploads/2022/07/PreonLab馬達繞組溫度分布-1024x532.png" alt="新版PreonLab 5.2 無網格光滑粒子流場分析 : PreonLab馬達繞組溫度分布" width="650" height="338" srcset="https://www.simhex.com/wp-content/uploads/2022/07/PreonLab馬達繞組溫度分布-1024x532.png 1024w, https://www.simhex.com/wp-content/uploads/2022/07/PreonLab馬達繞組溫度分布-300x156.png 300w, https://www.simhex.com/wp-content/uploads/2022/07/PreonLab馬達繞組溫度分布-768x399.png 768w, https://www.simhex.com/wp-content/uploads/2022/07/PreonLab馬達繞組溫度分布.png 1181w" sizes="(max-width: 650px) 100vw, 650px" /><figcaption id="caption-attachment-2202" class="wp-caption-text"></span> <span style="font-family: arial, helvetica, sans-serif;">圖二:PreonLab馬達繞組溫度分布</span></figcaption></figure></p>
<p>&nbsp;</p>
<h5 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>WATER WADING SIMULATION WITH AVL VSM </strong><strong>涉水模擬</strong></span></h5>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">使用AVL的懸吊系統模型，透過結合PreonLab與AVL VSM，將車輛懸吊系統分為四個區域，單獨定義彈簧與阻尼參數，實現車輛的涉水分析。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">車輛在新版本中擁有自身的質量並可以感應軌道的深度，確保輪胎與軌道之間的接觸，無須外部輸入行駛路徑腳本，可通過不平坦的軌道與水流，並擁有虛擬駕駛邏輯與強大的車輛懸吊模型。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">With PreonLab 5.2, a new suspension model is made available in PreonLab known as the Vehicle Simulation Model or VSM. This is possible by combining the power of PreonLab with <a href="https://www.avl.com/-/avl-vsm-4-" target="_blank" rel="noopener noreferrer">AVL VSM</a>.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">This model uses a quarter car approach dividing the suspension of the car into four regions. You can define the spring and damper settings individually for each section.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">The vehicle settings, details of the track and the vehicle kinematics are defined in the user interface of VSM. As before, loading the vehicle and track geometries , defining the transformation groups and interconnecting them and setting up the fluid solver are done in PreonLab. The wheels now have its own masses and sense the depth of the track and PreonLab ensures contact between the tyres and the track without having to use an external script.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">With PreonLab and AVL VSM at your hand, you can now perform even more sophisticated water wading simulations, considering uneven tracks and crossflows while having a virtual driver and a powerful car suspension model.</span></p>
<p class="responsive-video-wrap clr"><iframe title="Wading Simulation in PreonLab 5.2" width="1200" height="675" src="https://www.youtube.com/embed/DNpsjdFnGis?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe></p>
<p style="text-align: left;"><span style="font-size: 10px; font-family: arial, helvetica, sans-serif;">(影片:<a href="https://www.youtube.com/watch?v=DNpsjdFnGis">https://www.youtube.com/watch?v=DNpsjdFnGis</a>)</span></p>
<p>&nbsp;</p>
<h6 style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>USABILITY &amp; WORKFLOW </strong><strong>可用性與工作流程</strong></span></h6>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">在 PreonLab 5.2 中，引進針對CAD文件格式的支援，尤其是通用的STEP文件也能直接匯入，相較於傳統基於網格的文件格式(如STL)，STEP格式的檔案大小更具競爭力，更不用擔心幾何數據匯出時後造成加載時間過長。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">內建一個預設的材料性質資料庫也是使用者經常回饋的需求， PreonLab 5.2 中，您可以選擇定義以及保存任何材料性質，並分享給其他使用者。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">關於其他更多更新內容或資訊，可以查看更新後的使用手冊。</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">With PreonLab 5.2, we introduce <strong>native support of CAD file formats</strong>, in particular the popular STEP file format. The STEP file format benefits from a smaller file size compared to conventional mesh-based file formats such as STL due to its representation of the raw geometry data, but suffers from a longer loading time due to the necessary tessellation of the geometry data. Therefore, we have combined different concepts in order to give you the option to convert the imported CAD file into <strong>our very own PRMESH file format</strong>, which consumes even less hard drive space while loading blazing fast.</span></p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">Having a material library offering presets has been a frequent request. With PreonLab 5.2 you now have the option to easily define and save your <strong>material settings</strong> for any object. Make sure you also share those valuable settings with you colleagues – sharing is caring.</span></p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p style="text-align: left;"><span style="font-size: 20px; font-family: arial, helvetica, sans-serif;">新版PreonLab 5.2 無網格光滑粒子流場分析 <span style="color: #ff0000;"><strong>總結:</strong></span></span></p>
<ul>
<li style="text-align: left;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><strong>連續粒徑:</strong>自由設定粒徑且靈活調整粗細,大幅提升渲染與後處理的生成速度。</span></li>
<li style="text-align: left;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><strong>多相流-</strong>導入新的時間步長設定且允許使用者調整實際體積模數值,提高模擬的精準度。</span></li>
<li style="text-align: left;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><strong>熱力學-</strong>增強的傳感器功能和靈活的粒徑調整功能，使模型更能貼近真實。</span></li>
<li style="text-align: left;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><strong>涉水模擬-</strong>車輛的涉水分析並擁有虛擬駕駛邏輯與強大的車輛懸吊模型。</span></li>
<li style="text-align: left;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><strong>可用性與工作流程-</strong>支援CAD文件格式匯入,數據檔案小且快速匯出。在材料性質資料庫中更加方便獲取正確的數據。</span></li>
</ul>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p style="text-align: left;"><span style="font-family: arial, helvetica, sans-serif;">想更清楚的了解 新版PreonLab 5.2 無網格光滑粒子流場分析<span style="font-size: 12px;"> </span>的細節，歡 迎 來 電 (02)2712-8448 或是 <a href="https://www.simhex.com/contact-us/">來 信</a>。</span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">If you want to know more details from PreonLab<span style="font-size: 12px;"><span style="font-size: 16px;"><span style="font-family: arial, helvetica, sans-serif;"> 5.</span>2</span></span> ,please contact <a href="https://www.simhex.com/contact-us/">Simhex</a>.</span></p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<ul>
<li><span style="font-size: 20px; font-family: arial, helvetica, sans-serif;"><strong>延伸閱讀</strong></span>
<ul>
<li><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;"><a href="https://www.avl.com/-/preonlab-5-1-release">AVL PreonLab 5.1 Release</a></span></li>
<li><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;"><a href="https://www.simhex.com/preonlab-%e7%84%a1%e7%b6%b2%e6%a0%bccfd/">AVL PreonLab 無網格CFD模擬技術</a></span></li>
<li><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;"><a href="https://www.simhex.com/news/%e6%96%b0%e7%89%88-preonlab-5-1-%e7%99%bc%e5%b8%83-%e6%9b%b4%e8%b2%bc%e8%bf%91%e7%9c%9f%e5%af%a6%e6%87%89%e7%94%a8/">新版 PreonLab 5.1 發布: 更貼近真實應用</a></span></li>
</ul>
</li>
</ul>
<p>這篇文章 <a href="https://www.simhex.com/case/information/%e6%96%b0%e7%89%88preonlab-5-2-%e7%84%a1%e7%b6%b2%e6%a0%bc%e5%85%89%e6%bb%91%e7%b2%92%e5%ad%90%e6%b5%81%e5%a0%b4%e5%88%86%e6%9e%90/">新版PreonLab 5.2 無網格光滑粒子流場分析</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
]]></content:encoded>
					
		
		
			</item>
		<item>
		<title>新版 PreonLab 5.1 發布: 更貼近真實應用</title>
		<link>https://www.simhex.com/news/%e6%96%b0%e7%89%88-preonlab-5-1-%e7%99%bc%e5%b8%83-%e6%9b%b4%e8%b2%bc%e8%bf%91%e7%9c%9f%e5%af%a6%e6%87%89%e7%94%a8/</link>
		
		<dc:creator><![CDATA[西姆赫克斯]]></dc:creator>
		<pubDate>Mon, 24 Jan 2022 09:27:03 +0000</pubDate>
				<category><![CDATA[技術資料]]></category>
		<category><![CDATA[最新消息]]></category>
		<category><![CDATA[AVL]]></category>
		<category><![CDATA[A柱溢流現像]]></category>
		<category><![CDATA[CPS]]></category>
		<category><![CDATA[PreonLab]]></category>
		<category><![CDATA[SPH]]></category>
		<category><![CDATA[SPH求解器]]></category>
		<category><![CDATA[多相流]]></category>
		<category><![CDATA[平滑粒子流體動力學]]></category>
		<category><![CDATA[後處理]]></category>
		<category><![CDATA[泥水污染]]></category>
		<category><![CDATA[流體力學]]></category>
		<category><![CDATA[涉水]]></category>
		<category><![CDATA[涉水模擬]]></category>
		<category><![CDATA[無網格]]></category>
		<category><![CDATA[無網格CFD]]></category>
		<category><![CDATA[熱分析]]></category>
		<category><![CDATA[自動駕駛]]></category>
		<category><![CDATA[自動駕駛感應器]]></category>
		<category><![CDATA[連續粒子]]></category>
		<category><![CDATA[雪場景]]></category>
		<category><![CDATA[齒輪箱]]></category>
		<guid isPermaLink="false">https://www.simhex.com/?p=2018</guid>

					<description><![CDATA[<p>新版 PreonLab 5.1 發布: 更貼近真實應用 PreonLab 齒輪箱 涉水 雪場景 多相流功能 新 [&#8230;]</p>
<p>這篇文章 <a href="https://www.simhex.com/news/%e6%96%b0%e7%89%88-preonlab-5-1-%e7%99%bc%e5%b8%83-%e6%9b%b4%e8%b2%bc%e8%bf%91%e7%9c%9f%e5%af%a6%e6%87%89%e7%94%a8/">新版 PreonLab 5.1 發布: 更貼近真實應用</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
]]></description>
										<content:encoded><![CDATA[<p style="text-align: center;"><span style="font-family: arial, helvetica, sans-serif; font-size: 10px;"><span style="font-size: 12px;">新版 PreonLab 5.1 發布: 更貼近真實應用</span> <span style="color: #ffffff;">PreonLab 齒輪箱 涉水 雪場景</span></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><strong>多相流功能</strong></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">新版 PreonLab 5.1新增多相流模擬功能，可以針對氣體進行求解。下圖以上升的氣泡模型顯示 PreonLab 的模擬結果與一般網格模型的分析結果一致。</span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><img loading="lazy" decoding="async" class="aligncenter wp-image-2019" src="https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的結果比較-300x113.png" alt="新版 PreonLab 5.1 發布: 更貼近真實應用" width="834" height="314" srcset="https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的結果比較-300x113.png 300w, https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的結果比較-1024x385.png 1024w, https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的結果比較-768x289.png 768w, https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的結果比較-1536x578.png 1536w, https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的結果比較.png 1633w" sizes="(max-width: 834px) 100vw, 834px" /></span></p>
<p style="text-align: center;"><span style="color: #999999; font-size: 14px; font-family: arial, helvetica, sans-serif;"><em>圖1: PreonLab與不同分析軟體的結果比較</em></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">多相流功能可實際應用在高速齒輪箱油的飛濺與潤滑，在模擬結果中可以看到油液中卷吸的氣相粒子，相較於有限體積法， PreonLab 的多相流功能計算速度有明顯的優勢：</span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><img loading="lazy" decoding="async" class="aligncenter wp-image-2020" src="https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的速度比較-300x99.png" alt="新版 PreonLab 5.1 發布: 更貼近真實應用" width="834" height="275" srcset="https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的速度比較-300x99.png 300w, https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的速度比較-1024x339.png 1024w, https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的速度比較-768x254.png 768w, https://www.simhex.com/wp-content/uploads/2022/01/PreonLab與不同分析軟體的速度比較.png 1118w" sizes="(max-width: 834px) 100vw, 834px" /></span></p>
<p style="text-align: center;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><em><span style="color: #999999;">圖2: PreonLab與不同分析軟體的速度比較</span></em></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><strong>局部細化功能</strong></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">新功能中分別支援液相粒子與氣相粒子進行局部的細化，也可以針對不同求解器定義不同的粒子直徑。在PreonLab新版選單中，可以局部加密固體壁面附近的粒子，提供使用者更靈活的建模選擇，相較於box domain的局部細化，其計算速度可提供約2倍。</span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><img loading="lazy" decoding="async" class="aligncenter wp-image-2021" src="https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab的局部細化功能-300x96.png" alt="PreonLab 齒輪箱 涉水 雪場景" width="833" height="267" srcset="https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab的局部細化功能-300x96.png 300w, https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab的局部細化功能-1024x328.png 1024w, https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab的局部細化功能-768x246.png 768w, https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab的局部細化功能-1536x492.png 1536w, https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab的局部細化功能.png 1620w" sizes="(max-width: 833px) 100vw, 833px" /></span></p>
<p style="text-align: center;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><em><span style="color: #999999;">圖3: 新版 PreonLab的局部細化功能</span></em></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><strong>熱分析應用</strong></span></p>
<ul>
<li><span style="font-family: arial, helvetica, sans-serif;">Wall Function 功能提升，提供熱傳HTC的計算精度</span></li>
<li><span style="font-family: arial, helvetica, sans-serif;">支持固體溫度場的求解：活塞冷卻、電機冷卻…</span></li>
<li><span style="font-family: arial, helvetica, sans-serif;">固體粒子熱傳導計算也支持任意形狀的局部細化，大幅提升計算效率</span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;"><img loading="lazy" decoding="async" class="aligncenter wp-image-2022" src="https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab-的局部細化功能應用在固體中-300x124.png" alt="局部細化功能 PreonLab 齒輪箱 涉水 雪場景" width="834" height="345" srcset="https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab-的局部細化功能應用在固體中-300x124.png 300w, https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab-的局部細化功能應用在固體中-1024x423.png 1024w, https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab-的局部細化功能應用在固體中-768x317.png 768w, https://www.simhex.com/wp-content/uploads/2022/01/新版-PreonLab-的局部細化功能應用在固體中.png 1310w" sizes="(max-width: 834px) 100vw, 834px" /></span></p>
<p style="text-align: center;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><em><span style="color: #999999;">圖4: 新版 PreonLab 的局部細化功能應用在固體中</span></em></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><strong>Snow</strong><strong>求解器增強</strong></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">在 5.1 版 本 中，Snow求解器 的 計 算 速 度 得 到 大 幅 的 提 升，在 下 圖 與 Audi 的 實 際 應 用 案 例 中 可 看 到 ，用 新 版 PreonLab 可 以 獲 得 3.6倍 的 增 速。</span></p>
<p><span style="font-family: arial, helvetica, sans-serif;"><img loading="lazy" decoding="async" class="aligncenter wp-image-2023" src="https://www.simhex.com/wp-content/uploads/2022/01/NAFEMS-world-congress-2021-CFD-Simulation-of-a-Vehicle-Driving-in-Snow-300x124.png" alt="CFD PreonLab 齒輪箱 涉水 雪場景" width="834" height="345" srcset="https://www.simhex.com/wp-content/uploads/2022/01/NAFEMS-world-congress-2021-CFD-Simulation-of-a-Vehicle-Driving-in-Snow-300x124.png 300w, https://www.simhex.com/wp-content/uploads/2022/01/NAFEMS-world-congress-2021-CFD-Simulation-of-a-Vehicle-Driving-in-Snow-1024x424.png 1024w, https://www.simhex.com/wp-content/uploads/2022/01/NAFEMS-world-congress-2021-CFD-Simulation-of-a-Vehicle-Driving-in-Snow-768x318.png 768w, https://www.simhex.com/wp-content/uploads/2022/01/NAFEMS-world-congress-2021-CFD-Simulation-of-a-Vehicle-Driving-in-Snow.png 1447w" sizes="(max-width: 834px) 100vw, 834px" /></span></p>
<p style="text-align: center;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><em><span style="color: #999999;">圖5: NAFEMS world congress 2021 “CFD Simulation of a Vehicle Driving in Snow”</span></em></span></p>
<p>&nbsp;</p>
<p><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">想 更 清 楚 的 了 解 <span style="font-family: arial, helvetica, sans-serif; font-size: 10px;"><span style="font-size: 16px;">新版 PreonLab 5.1 發布: 更貼近真實應用</span> </span>的 細 節 ，歡 迎 來 電 (02)2712-8448 或 是 <a href="https://www.simhex.com/contact-us/">來 信</a>。</span></p>
<p><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">If you want to know more details from <span style="font-family: arial, helvetica, sans-serif; font-size: 10px;"><span style="font-size: 16px;">PreonLab</span></span>  ,please contact <a href="https://www.simhex.com/contact-us/">Simhex</a>.</span></p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<h2><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><span style="font-family: arial, helvetica, sans-serif;">PreonLab 介紹：</span></span></h2>
<p><span style="font-family: arial, helvetica, sans-serif;">經 典 CFD 軟體和 PreonLab 之 間 的 差 異 很 快 就 能 解 釋 清 楚 —— 經典 CFD 軟體 基 於 網格創建 ，而 PreonLab 則 選 擇 了 不 同 的 方 法 ：<strong>平滑粒子流體動力學 （SPH） </strong>是 革 命 性 PREON® 技術 的 基 礎 。 </span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">無需網格，所 有 流體力學 難 題 都 可 以 快 速 且 輕 鬆 地 解 決 。同 時， PreonLab 能 為 您 提 供 可靠的視覺化結果 。</span></p>
<p>&nbsp;</p>
<p><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>應 用 領 域 <span style="font-family: arial, helvetica, sans-serif; font-size: 10px;"> <span style="color: #ffffff;">PreonLab 齒輪箱 涉水 雪場景</span></span></strong></span></p>
<ul>
<li><strong><span style="font-family: arial, helvetica, sans-serif;"> 齒輪箱 </span></strong></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">使用 PreonLab 進行 齒輪箱 的仿真，能夠顯著的縮短開發周期。 極短的仿真建模時間，能夠實現設計方案快速迭代，甚至可以在優化迭代中考慮換熱。</span></p>
<ul>
<li><strong><span style="font-family: arial, helvetica, sans-serif;"> 涉水 </span></strong></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">不同車速及 涉水 深度條件下，車輛的準確運動規律對於涉水仿真非常的重要。 PreonLab 中的車輛懸架模型，能夠更加準確的考慮涉水過程中的車輛姿態。</span></p>
<ul>
<li><strong><span style="font-family: arial, helvetica, sans-serif;"> 雪場景 </span></strong></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">PreonLab 能夠模擬各種不同屬性的流體，甚至包括雪。 PreonLab 中獨特的雪求解器，能夠幫助用戶進行各種 雪場景 的求解，解決複雜的問題，例如：輪罩內的積雪。</span></p>
<p>&nbsp;</p>
<p><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>為 什 麼 選 擇 PreonLab ？</strong></span></p>
<ul>
<li class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif;"><strong>強大的SPH求解器</strong></span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">與常規的基於粒子的求解器相比， PreonLab 可以穩健地處理更大的時間步長，將計算時間減少幾個數量級，並且無需人為去定義求解步長。</span></p>
<ul>
<li class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif;"><strong>後處理</strong></span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">PreonLab 配備了強大的內建後處理工具，保障流暢易用的量化結果統計還是高品質的影像渲染。</span></p>
<ul>
<li class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif;"><strong>連續粒子尺寸</strong></span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">對於有限體積法來說網格細化並不是一個新主題，這也是加速計算的有效手段 。但對於粒子法軟體來說是一個非常大的挑戰，PreonLab 透過連續粒子尺寸（CPS）技術可以實現高效且穩健的粒子細化及合併，同樣達到加速求解的效果。</span></p>
<p>&nbsp;</p>
<p class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>更 重 要 的 是 ？</strong></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">粒子 也 非 常 適 合 為 其 他 材 料 建模。  PreonLab 可 以 用 彈塑性模型 和 剛體模擬 各 種 類 型 的 雪，當 然 也 是 用 的 隱式解法 。</span></p>
<p>&nbsp;</p>
<p class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif; font-size: 20px;"><strong>新 奇 功 能 ？</strong></span></p>
<p><span style="font-family: arial, helvetica, sans-serif;">上 述 並 不 是 PreonLab 能 做 到 的 全 部 ！ PreonLab 還 有 一 些 其 他 特 異 功 能 可 滿 足 你 一 切 所 想 。</span></p>
<ul>
<li class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif;"><strong>A柱溢流現像模擬</strong></span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">雨天行車側窗被雨水覆蓋嚴重影響駕駛透過後視鏡觀察車輛週邊環境，極易引發交通事故。 雖然該現象無法避免，但是我們可以透過模擬分析手段去優化結構設計，進而確保我們後視鏡的可觀察度。 PreonLab可以透過耦合不同工況下的空氣流場進而分析出對應工況下A柱溢流後雨水在側窗的分佈情況，方便我們提升車輛主動安全性能。</span></p>
<ul>
<li class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif;"><strong>泥水污染評估</strong></span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">PreonLab可以透過非牛頓流體模擬車輛通過泥水路面後車身以及機艙內關鍵部件的污染情況。 一方面可以引導我們車身擋泥板等外飾件的設計，另一方面也可以提示我們是否要對關鍵部件做一些必要性的擋板以提升部件的使用壽命。</span></p>
<ul>
<li class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif;"><strong>雪屬性資料庫</strong></span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">PreonLab可以模擬積雪路面行車和雪天行車等不同雪場景。然而雪的形態和屬性和天氣狀況有很大關係。 PreonLab 以彈塑性模型和剛體模擬各種類型的雪，並且根據工程經驗內建了6種常見雪的屬性參數供使用者直接呼叫。</span></p>
<ul>
<li class="ql-align-center"><span style="font-family: arial, helvetica, sans-serif;"><strong>自動駕駛感應器水管理</strong></span></li>
</ul>
<p><span style="font-family: arial, helvetica, sans-serif;">自動駕駛功能的可靠性直接影響到我們的行車安全，也是我們主機廠研發人員和終端使用者都非常重視的重點。 功能可靠性的前提是我們的雷達或攝影機能夠擯除幹擾因素獲得準確的訊號。 PreonLab可以較全面的輔助我們分析車輛各種水環境下，雷達或攝影機水的覆蓋情況，引導我們進行設計優化以提升功能可靠性。</span></p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p><span style="font-size: 20px; font-family: arial, helvetica, sans-serif;"><strong>延伸閱讀</strong></span></p>
<ul>
<li><span style="font-family: arial, helvetica, sans-serif;"><a href="https://www.avl.com/-/preonlab-5-1-release">AVL PreonLab 5.1 Release</a></span></li>
<li><span style="font-family: arial, helvetica, sans-serif;"><a href="https://www.simhex.com/preonlab-%e7%84%a1%e7%b6%b2%e6%a0%bccfd/">AVL PreonLab 無網格CFD模擬技術</a></span></li>
</ul>
<p>這篇文章 <a href="https://www.simhex.com/news/%e6%96%b0%e7%89%88-preonlab-5-1-%e7%99%bc%e5%b8%83-%e6%9b%b4%e8%b2%bc%e8%bf%91%e7%9c%9f%e5%af%a6%e6%87%89%e7%94%a8/">新版 PreonLab 5.1 發布: 更貼近真實應用</a> 最早出現於 <a href="https://www.simhex.com">星恆科技有限公司</a>。</p>
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