set Min and Max values for pressure in pimpleFoam
in my problem the velocities are calculated correctly but pressure is not.
I use pimpleFoam and I want to limit the pressure
I add bellow statment in fvSolution/PIMPLE
pMin pMin [ 0 2 -2 0 0 0 0 ] -150;
pMax pMax [ 0 2 -2 0 0 0 0 ] 150;
but it not work
any help will be appreciated
did you change your solver at all!? then those lines would not reflect anything to solver :)
besides as you use incopressible solver i dont gauss its a good idea to limit the pressure which will be effect on continuity too and it may impair divergence issue
I have added the setting of my test case as follow:
I use my icoFsiFoam solver which used pimpleFoam for solve fluid.
the results is good until time=0.1205 with maxCor=.6 ( deltaT ~1e-5)
at the next state (Time = 0.1205+deltaT) the velocity is calculated correctly, but pressure not.
I check the original pimpleFoam solver to solve fluid only, but the pressure is diverged again. I have attached its contours.
Bounding pressure is certainly not the way to go. Check your velocity in a few more time steps, and you will probably see something weird there as well. In other words, your solution is diverging, please check the residuals of the equations from the log file. It might be wise to study the origin of the pressure issue, which might well be related to the FSI part.
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