[fandall]

I'm experiencing some trouble running the buoyantFoam solver. During computation, while the Courant Numbers are still below 1, the following message, even if I employed a smaller timestep, appeared resulting in an interrupt of the computation:

--> FOAM FATAL ERROR : Maximum number of iterations exceeded

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 /home/dm2/henry/OpenFOAM/OpenFOAM-1.2/src/thermophysicalModels/specie/lnInclude/ specieThermoI.H at line 83.

FOAM aborting

To me it seems like the scheme for the temperature did not converge anymore. How can I influence the stability of it? The timestep alone doesn't seem to be enough.

My fvSchemes file is identical to the one used in the HotRoom Example Case, using also the same solver parameters for the turbulence model.

Any help is greatly appreciated