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我想用openfoam设置超疏水表面，我想我应该设置壁面接触角来模拟超疏水表面，但是超疏水表面会产生壁面速度滑移，那我应该如何定义我的速度边界条件呢？如果是zerogradient会不会和实际上疏水表面速度不符合，如果是设置particalslip的话，就成了为了设置滑移速度而产生的滑移速度，背离了我的初衷。所以应该如何设置超疏水表面。
https://cfd-china.com/topic/6644
你看看这个，我觉得可以用symmetry边界
