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September 17, 2020, 15:25 |
PimpleFoam does not print out the Residuals
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#1 | ||
New Member
Jeff Stout
Join Date: Dec 2019
Posts: 8
Rep Power: 6 |
I added a switch (or something) to my case to only compute the pressure. But I was forced to drop the project for a while and I now I'm picking it up again. But now I want the residuals back and I don't remember how I turned them off.
This is what I see now: Quote:
Quote:
I can upload my system and constant directory if that will help. |
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September 17, 2020, 20:02 |
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#2 |
Senior Member
Join Date: Aug 2015
Posts: 494
Rep Power: 15 |
Without seeing the case it is hard to say, but off the top of my head -- momentum prediction needs to be on to solve the momentum equation (i.e., solve for velocity).
Caelan |
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September 17, 2020, 23:59 |
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#3 |
New Member
Jeff Stout
Join Date: Dec 2019
Posts: 8
Rep Power: 6 |
I was reading another post about a similar issue and I suspected I could have the same problem that guy had. In that other post various faces of the case were not setup correctly and that mesh was malformed which caused the smoothSolver (the part that prints out the residuals) to crash.
It turns out I was deforming the mesh too. The mesh had a few "underdeterminedCells" and I was using setSet & subsetMesh to remove them from the mesh. This cause pimpleFoam/smootSolver to crash. I guess I need to heal the mesh somehow. Anyway, now that I think about it the switches I vaguely remember which would turn off certain terms in the solution were not for pimpleFoam. Now that I think about it, I may have been remembering switches I was setting on potentialFoam (-writePhi, -writephi). |
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September 18, 2020, 03:22 |
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#4 |
Senior Member
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Does below help?
* options to be used during runtime: extensive config file available to from OPEN_FOAM_PATH/1806/etc/controlDict (need to check). This controlDict can be copied to HOME/.OpenFOAM/1806. Change solver performance from 1 to 2 to obtain more verbosity in the solver. |
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