|
[Sponsors] |
April 27, 2023, 08:57 |
pisoFoam, localEuler
|
#1 |
Member
Giorgio
Join Date: Mar 2023
Posts: 55
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? |
|
April 28, 2023, 08:02 |
|
#2 |
Senior Member
Join Date: Apr 2020
Location: UK
Posts: 740
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.
|
|
Tags |
steady state simulations |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Differences in solution method for pisoFoam and buoyantBoussinesqPisoFoam | mchurchf | OpenFOAM | 7 | August 6, 2023 10:12 |
pisoFoam OF4 vs OF8 | mattiafc | OpenFOAM Programming & Development | 1 | March 22, 2021 14:33 |
pisoFoam and pimpleFoam are unstable in foam-extend 4.0/4.1 (misunderstanding ?) | Kombinator | OpenFOAM Running, Solving & CFD | 4 | January 14, 2021 05:10 |
PisoFoam error: mpirun Exit Code | Jinjolee | OpenFOAM | 3 | April 29, 2019 08:10 |
pisoFoam compiling error with OF 1.7.1 on MAC OSX | Greg Givogue | OpenFOAM Programming & Development | 3 | March 4, 2011 18:18 |