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

2018-01-26 Thread Bruno Chareyre
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

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

2018-01-25 Thread Luc Scholtès
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Status: Answered => Solved Luc Scholtès confirmed that the question is solved: Thank you guys. I guess I need some time to process this with respect to what I want to achieve. Just a final comment: If I

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

2018-01-25 Thread Bruno Chareyre
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Bruno Chareyre proposed the following answer: > "a problem that would depend both on pressure gradient and pressure average could not be simulated using periodic boundaries, since such a problem would not show a

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

2018-01-25 Thread Jérôme Duriez
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Status: Open => Answered Jérôme Duriez proposed the following answer: >From my understanding, I would more consider the pressure field along the infinite problem being something like -infinity -- -infinity

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

2018-01-24 Thread Luc Scholtès
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Luc Scholtès gave more information on the question: Sorry, I meant: -P -- 0 -- +P / -P -- 0 -- +P / -P -- 0 -- +P and 0 -- P -- 2P / 0 -- P -- 2P / 0 -- P -- 2P for gradP=P -- You received this question

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

2018-01-24 Thread Luc Scholtès
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Status: Answered => Open Luc Scholtès is still having a problem: Thank you Jerome for your input. As I said, I struggle a little bit with the periodic boundaries concept. Still, why would the current

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

2018-01-24 Thread Jérôme Duriez
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Status: Open => Answered Jérôme Duriez proposed the following answer: Hi Luc, On a general note regarding periodic boundaries, I do not think it is meaningful to consider that Paverage has a particular

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

2018-01-23 Thread Luc Scholtès
New question #663459 on Yade: https://answers.launchpad.net/yade/+question/663459 Hi all, I am still a bit confused with the periodic boundaries and I am wondering if there is a way to impose a pressure gradient with gradP such that the average pressure in the cell is not equal to 0? The