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There's pressure gradient, but no velocity, anyone can help me out? thanks

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Hi, I'm using the Free and Porous Media Flow module to simulate the fluid flow on the particle level. I used it for 2D condition and it worked. When I switched to 3D case, something weird happened. I can get the proper pressure gradient, but all the velocity is zero....

Any help would be greatly appreciated!
Attached is the model.

0 Replies Last Post Feb 20, 2013, 11:39 a.m. EST
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Hello Ryan Liu

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