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October 29, 2009, 05:07
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Wild pressure fluctuations with InterDyMFoam
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#1 |
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New Member
T Somerville
Join Date: May 2009
Posts: 10
Rep Power: 18  |
I'm looking at verification of OpenFOAM with the Kleefsman et al (2005) dambreak simulation but I'm getting wild pressure fluctuations near the obstacle (at positions P1 to P7 in Kleefsman). I will try to attach a plot for position P1.
I have adapted the interDyMFoam dambreak tutorial, using exactly the same fvSolution and fvSchemes files. I have also tried changing various parameters, including the div schemes with only partial success. Can anyone help me with a recommendation for schemes, or other, that may resolve this problem please? |
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April 29, 2011, 09:56
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#2 |
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Senior Member
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Hi,
I have this problem too. My case is a cyclone with pisoFoam and Smagorinsky LES. What can be the cause of this high fluctuation? This fluctuation is seen on both residuals and magnitude of P. i mean at one time step range of P is from 0 to 500 but at next time step it becomes from -800 to -100 and so on ... Regards, |
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| Tags |
| dambreak, interdymfoam, pressure, pressure fluctuation, verification |
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