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Re: [Question #663459]: Periodic flow: impose gradP such that Paverage!=0

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Bruno Chareyre <question663459@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 26 Jan 2018 10:32:41 -0000
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Question #663459 on Yade changed:
https://answers.launchpad.net/yade/+question/663459

Bruno Chareyre posted a new comment:
Hi,
You can indeed control the gradient and the mean pressure independently in a flow problem.
The problem is in the coupling. If crack aperture (or deformation) depends on local pressure and local pressure has a macroscopic gradient, then crack aperture is not periodic. This is incompatible with a periodic geometry.
My conclusion is that the gradient should be zero if what you want is the response to  mean pressure.

Bruno

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