Problem running simpleFoam with kOmegaSST turbulence model
Hello,
I'm trying to run a channel-case (4m^2) with a smaller cross-section (0.05m^2) in between. My boundary-conditions are: Code:
inlet_velocity (0.3 0 0) Code:
ddtSchemes Code:
solvers |
can you post images of the mesh? have you tried to visualize where the k and omega rises to high values?
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2 Attachment(s)
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mmm the mesh looks good from here,
are the layers correctly added even in the corners? maybe increasing the number of nonOrtogonalCorrectors in the simple loop? if the issue arises in the early timesteps you might want to try to increase the value of the initial omega internal field to artificially stabilize the solution. this is what comes to mind right now... |
tried to solve it without turbulence, but also no convergence. I have no idea what the problem is...
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Hi,
Just looking at your fvSchemes, try changing: Code:
divSchemes Code:
divSchemes You may even want to use upwind for the turbulence variables if that is needed for convergence, to my experience the end result is not affected significantly. Especially if you have a lot of nonOrthogonality this may help: Code:
laplacianSchemes Tom |
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