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#1 |
Member
Giorgio
Join Date: Mar 2023
Posts: 46
Rep Power: 3 ![]() |
I am trying to obtain a steady state solution of a turbulent case (k-omegaSST). In order to start the simulation with a decent solution, previously to my SS attemps, I run a transient simulation for a quite long time. Then I started my SS solution:
I tried simpleFoam but the simulation crashes at the second step. Then I tried pisoFoam with localEuler but I get the following error: Code:
Courant Number mean: 0.0248068 max: 0.582525 [0] [0] [0] --> FOAM FATAL ERROR: (openfoam-2212) [0] failed lookup of rDeltaT (objectRegistry region0) available objects of type volScalarField: 6(nut yWall k nu p omega) [0] [0] [0] From const Type& Foam::objectRegistry::lookupObject(const Foam::word&, bool) const [with Type = Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>] [0] in file /usr/src/packages/BUILD/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 571. [0] FOAM parallel run exiting [0] Can somebody explain me how to provide rDeltaT? |
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#2 |
Senior Member
Join Date: Apr 2020
Location: UK
Posts: 711
Rep Power: 14 ![]() |
Try use pimpleFoam instead of pisoFoam ... pisoFoam is for time accurate transient simulations. If your simpleFoam run is crashing on iter 2, then you either need a better starting guess and/or you need to underrelax more.
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Tags |
steady state simulations |
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