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Forum: OpenFOAM June 16, 2010, 06:27
Replies: 32
Views: 9,441
Posted By fgal
Hello, I used second order schemes (Gauss...

Hello,

I used second order schemes (Gauss linear for all div terms) and used 100x100 cells in your blocks instead of 50x50, used the same boundary conditions and get rid of that pressure problem....
Forum: OpenFOAM June 10, 2010, 04:51
Replies: 32
Views: 9,441
Posted By fgal
Hello, Could you please rescale the pressure...

Hello,
Could you please rescale the pressure field between 100 000 and 100 010 ? I have the impression that now the hydrostatic gradient is correct. You have something weird at the angle but that...
Forum: OpenFOAM June 9, 2010, 07:24
Replies: 32
Views: 9,441
Posted By fgal
Ok, that is what I thought. Could you try to...

Ok, that is what I thought.
Could you try to put fixedValue 100 000 at the bottom and zeroGradient at the top for the pressure boundary conditions ?
The pressure is the motor of the flow with the...
Forum: OpenFOAM June 9, 2010, 05:56
Replies: 32
Views: 9,441
Posted By fgal
Hello msarkar...

Hello msarkar (http://www.cfd-online.com/Forums/members/msarkar.html),
I also had problems like you when using buoyantPressure everywhere, in my slover there was a particular treatment when the case...
Forum: OpenFOAM June 8, 2010, 07:10
Replies: 32
Views: 9,441
Posted By fgal
Hi msarkar, I also noticed that the grid...

Hi msarkar,

I also noticed that the grid size had a big influence on the results, but I could not give any advice, because as you I tried many configurations without obtaining good results. There...
Forum: OpenFOAM June 3, 2010, 09:56
Replies: 32
Views: 9,441
Posted By fgal
Hi msarkar, I have very similar problems to you...

Hi msarkar,
I have very similar problems to you but with fireFoam, which is a Large eddy simulation fire solver. The flow is also driven by buoyancy.
I noticed different things. First, yes the...
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