Wild pressure fluctuations with InterDyMFoam
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?
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 ...
|All times are GMT -4. The time now is 21:40.|