hi foamers,

is anyone doing or has anyone done any simulations with mesh motion and topological changes for IC engine simulation??? i have done a few runs of the simpleEngine case with an incompressible solver just to observe the cold flow, but the results are still not good. Mesh moves and everything, but velocity field doesnt look very real, even for an incompressible solver. Then I decided to use a compressible one, sonicTurbDyMEgineFoam, which is the one I wanted to use anyway, but I keep getting the following error:

From function specieThermo<thermo>::T(scalar f, scalar T0, scalar (specieThermo<thermo>::*F)(const scalar) const, scalar (specieThermo<thermo>::*dFdT)(const scalar) const) const
in file /opt/software/openfoam/extend/OpenFOAM®-1.6-ext/src/thermophysicalModels/specie/lnInclude/specieThermoI.H at line 73
Maximum number of iterations exceeded. Rescue by HJ

Any suggestions??? I have been stuck here for a long while already, any help will be appreciated.

Hi Alberto

I used the kepsilon turbulence model with your case. The janaf error disappeared but I ended up with a segmentation fault. Please check your boundary conditions again and try to solve it firstly without a turbulence model.
Keep me posted
Peter

Sorry I didn t read your message at CFD online.
Let s discuss the topic there
Otherwise it will be twice in the net. My fault.