FOAM FATAL ERROR: Maximum number of iterations exceeded
Hii,
I am running rhoPisoFoam for a duct using oneeqeddy LES model. After a few iterations I get the following error: --> 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/44792/OpenFOAM/OpenFOAM-1.7.1/src/thermophysicalModels/specie/lnInclude/specieThermoI.H at line 67. FOAM aborting Can someone please let me know how to tackle this? Thanks, Tarak |
Hi Tarak,
I hope that you're not still stuck on this but if you are, my guess would be to go to Quote:
Past that I don't know. I'm guessing you built your own test case, you may have accidentally done something that's causing the iteration counter to go out of control (but I have no concept of how you would do that). Hopefully you've already solved it! |
I've always been able to solve this issue by checking my boundary and initial conditions, twiddling around with the underrelaxation coefficients etc. I'm not sure, but I think this is a convergence problem when you're solving for enthalpy. Also if you're running a compressible case, make sure you have the correct coefficients in correct units in the correct order for all the T-dependent quantities! A bogus density can crash your simulation very easily.
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Hello Joel
How did you resolve it..I have the same issue with rhoPimpleFoam and have been trying to get rid of this error for the last week. Kindly respond. I shall be very grateful. Regards |
Hello All,
The same problem occured with me using compressibleTwoPhaseEulerFoam. I found that the iteration over the temperature tested for negative absolute temperatures. I will check the temperature dependencies, but my problem was not solved yet. Thanks for the advice though. Best wouter |
Hi,
Did you guys find a solution to this problem? Thank you, Gui |
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