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    如何给速度分量设置边界条件?

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    • V
      Vortex last edited by

      边界速度矢量(Ux,Uy,Uz),需要给U_z设定为 0, Ux和Uy设置为零梯度,如何设置?

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      • V
        Vortex @Vortex last edited by

        @Vortex 自问自答,这种情况设置为slip即可以。但其他情况可能需要自己写代码。

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        • C
          cccrrryyy 教授 last edited by cccrrryyy

          很好奇这是用在什么物理场景中,本身这里就是滑移的么?

          I don't want to survive, I want to thrive.

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            Vortex @cccrrryyy last edited by

            @cccrrryyy 我用在大气边界层风场模拟。速度在顶部的边界条件, z为高度方向,这时候可以设置为slip。

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              Samuel-Tu @Vortex last edited by

              @Vortex 论文里一般设为symmetry

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                veen @Vortex last edited by

                @Vortex 之前做CASE的时候,OpenFOAM设置为symmetry有时候会不收敛,但是slip看温度场可能会出现一些问题。在商软里边一般是设置symmetry。

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                • V
                  Vortex @Samuel-Tu last edited by

                  @Samuel-Tu 好的,多谢提醒~cfdonline有这两个边界条件差异的讨论。
                  https://www.cfd-online.com/Forums/openfoam-programming-development/180412-slip-symmetry-boundary-conditions.html

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