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[Bruno Chareyre <question664362@xxxxxxxxxxxxxxxxxxxxx>]

Question #664362 on Yade changed:
https://answers.launchpad.net/yade/+question/664362

Bruno Chareyre posted a new comment:
Hello,
Based on flow.bndCondIsPressure=[0,0,0,0,1,0] the boundary conditions are like imposing the pressure on the top of glass of water: nothing happens if the fluid is incompressible since all other sides are impermeable.
You need at least two faces with imposed pressure. 

flow.gradP is for imposing pressure gradient in a direction of
periodicity, which does not seem to be your case.

I hope it helps.

Bruno

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