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August 8, 2015, 14:23 |
pressure in interFoam
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#1 |
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Hello together,
I am confused at the moment. iinterFoam writes a p and a p_rgh - file in the time-folder. What is p? Total pressure or static pressure? How can I calculate the total pressure? Thanks for your help Last edited by idefix; August 8, 2015 at 15:55. |
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August 8, 2015, 18:14 |
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#2 |
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anonymous
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Last edited by ssss; August 9, 2015 at 04:45. |
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August 9, 2015, 01:13 |
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#3 |
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Thanks for your explanation.
But are you sure that p is divided by the density? The dimension given in the p-file are: dimensions [1 -1 -2 0 0 0 0] |
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August 9, 2015, 01:32 |
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#4 |
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anonymous
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Yes you are right, I was thinking about simpleFoam and other solvers I will edit my post
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August 9, 2015, 01:52 |
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#5 |
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I have quick question about simpleFoam. I have made a mesh that fits an inviscid case, but the issue how can I use simpleFoam as an inviscid solver. Have you guys used simpleFoam before?
Thanks in advance, Tareq |
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August 9, 2015, 03:23 |
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#6 |
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August 9, 2015, 03:25 |
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#7 |
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It would be a kind of "cheating" but setting the viscosity in the transportProperties-file to a very small value?
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August 9, 2015, 03:31 |
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#8 |
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Hello,
Thank you for you kind response. I have tried to set up the viscosity almost to zero, but I am not getting a good convergence history. Any idea...? Sorry to bring this question to your question that you are already asked. Best, Tareq |
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August 9, 2015, 04:25 |
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#9 |
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do you have a good convergence when you use viscosity (much greater than zero)?
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August 9, 2015, 04:27 |
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#10 |
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Good question. No, I have not obtained a good convergence history in both cases.
Best, Tareq |
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August 9, 2015, 04:29 |
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#11 |
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maybe check your boundary condition first and then turn off the viscosity
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August 9, 2015, 05:22 |
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#12 |
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I am using boundary conditions that I used in one of my old cases since I obtained excellent results. So, I don't think that the problem of is from boundary conditions.
Best, Tareq |
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August 9, 2015, 07:30 |
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#13 |
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and where is the difference between the old and new case (if not the boundary conditions)?
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August 9, 2015, 22:37 |
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#14 |
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Here are pictures from the mesh and convergence history for the inviscid case. I am guessing this might be the problem.
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