<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[divq中的correction是怎么来的？]]></title><description><![CDATA[<p dir="auto">查看OpenFOAM10的代码可以发现，在src/ThermophysicalTransportModels/turbulence/eddyDiffusivity/eddyDiffusivity.C中的divq的实现为：</p>
<pre><code>-correction(fvm::laplacian(this-&gt;alpha()*this-&gt;alphaEff(), he))
-fvc::laplacian(this-&gt;alpha()*this-&gt;kappaEff(), this-&gt;thermo().T());
</code></pre>
<p dir="auto">而按我的理解，这里应该只是求解 $-\nabla(k_{eff}\nabla T)$，即：</p>
<pre><code>-fvc::laplacian(this-&gt;alpha()*this-&gt;kappaEff(), this-&gt;thermo().T())
</code></pre>
<p dir="auto">那这里多出来的correction应该怎么理解？</p>
]]></description><link>https://cfd-china.com/topic/6526/divq中的correction是怎么来的</link><generator>RSS for Node</generator><lastBuildDate>Tue, 16 Jun 2026 21:36:28 GMT</lastBuildDate><atom:link href="https://cfd-china.com/topic/6526.rss" rel="self" type="application/rss+xml"/><pubDate>Fri, 18 Aug 2023 08:05:38 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to divq中的correction是怎么来的？ on Thu, 14 Nov 2024 13:48:24 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://cfd-china.com/uid/1">@李东岳</a> 《笔记》里没有5.5.13这一节啊？</p>
]]></description><link>https://cfd-china.com/post/41237</link><guid isPermaLink="true">https://cfd-china.com/post/41237</guid><dc:creator><![CDATA[09116333]]></dc:creator><pubDate>Thu, 14 Nov 2024 13:48:24 GMT</pubDate></item><item><title><![CDATA[Reply to divq中的correction是怎么来的？ on Tue, 22 Aug 2023 14:09:05 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://cfd-china.com/uid/1">@李东岳</a> 多谢大佬点拨</p>
]]></description><link>https://cfd-china.com/post/35132</link><guid isPermaLink="true">https://cfd-china.com/post/35132</guid><dc:creator><![CDATA[BlookCFD]]></dc:creator><pubDate>Tue, 22 Aug 2023 14:09:05 GMT</pubDate></item><item><title><![CDATA[Reply to divq中的correction是怎么来的？ on Mon, 28 Aug 2023 08:45:36 GMT]]></title><description><![CDATA[<p dir="auto">就是同一个时间步下的$\nabla^2q^{n+1}-\nabla^2q^{n}$，在收敛的时候为0，具体为什么会有这一项，还需要研究下 <img src="https://cfd-china.com/assets/plugins/nodebb-plugin-emoji/emoji/customizations/7c2a3def-0d88-4862-b817-081d5b02aa31-3.gif?v=eedi85amb0g" class="not-responsive emoji emoji-customizations emoji--136" style="height:23px;width:auto;vertical-align:middle" title=":136:" alt=":136:" /></p>
]]></description><link>https://cfd-china.com/post/35128</link><guid isPermaLink="true">https://cfd-china.com/post/35128</guid><dc:creator><![CDATA[李东岳]]></dc:creator><pubDate>Mon, 28 Aug 2023 08:45:36 GMT</pubDate></item><item><title><![CDATA[Reply to divq中的correction是怎么来的？ on Fri, 18 Aug 2023 09:41:30 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://cfd-china.com/uid/1">@李东岳</a> 看得懵懵懂懂，还是理不出来相应的数学表达式。感觉是一种线化处理策略，如果没有correction，就变成了纯显式处理</p>
]]></description><link>https://cfd-china.com/post/35121</link><guid isPermaLink="true">https://cfd-china.com/post/35121</guid><dc:creator><![CDATA[BlookCFD]]></dc:creator><pubDate>Fri, 18 Aug 2023 09:41:30 GMT</pubDate></item><item><title><![CDATA[Reply to divq中的correction是怎么来的？ on Fri, 18 Aug 2023 08:11:01 GMT]]></title><description><![CDATA[<p dir="auto">《无痛笔记》5.5.13 fvMatrix 的correction() 函数</p>
<p dir="auto"><a href="http://www.dyfluid.com/theory.pdf" target="_blank" rel="noopener noreferrer nofollow ugc">http://www.dyfluid.com/theory.pdf</a></p>
]]></description><link>https://cfd-china.com/post/35120</link><guid isPermaLink="true">https://cfd-china.com/post/35120</guid><dc:creator><![CDATA[李东岳]]></dc:creator><pubDate>Fri, 18 Aug 2023 08:11:01 GMT</pubDate></item></channel></rss>