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CFD中文网

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  3. 新方程的预测步和修正步

新方程的预测步和修正步

Scheduled Pinned Locked Moved OpenFOAM
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  • 好 Offline
    好 Offline
    好好科研
    wrote on last edited by 李东岳
    #1

    想向各位大佬请教一下,在icofoam里面添加新方程$\frac{\partial H}{\partial t}+ \vec{u}\cdot \triangledown H=\varepsilon \triangledown ^{2}H$和$\frac{\partial H}{\partial t}+ \vec{w}\cdot \triangledown H=\varepsilon \triangledown ^{2}H$,其中$\varepsilon$是常数,H是一个标量函数。但是不知道为什么得到的H是只算了第二个方程的结果,一个方程相当于没有算。代码如下:
    e8438ad7-61fb-40e0-b359-5b3f7f708518-image.png
    a347a9b8-8130-4c08-8d46-781ddc3424b8-image.png

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  • 李东岳李 Online
    李东岳李 Online
    李东岳 管理员
    wrote on last edited by
    #2

    在同一个时间步里面植入两个方程,需要把H.oldTime()重新赋值一下

    9月CFD算法编程课: http://dyfluid.com/class.html

    需要帮助debug算例的看这个 https://cfd-china.com/topic/8018

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  • 好 Offline
    好 Offline
    好好科研
    wrote on last edited by
    #3

    谢谢东岳老师

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