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Diverging solution in transonicMRFDyMFoam

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Old   May 28, 2014, 06:56
Post No convergence with transonicMRFDyMFOAM
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Hi,

I have simulated the case. Up to 1400 iterations everything went well. Ang got the results almost converged. Which is as follows
Code:
Time = 1400
MassFlows:   INLET = 0.050998309
 MassFlows:   OUTLET = 0.051097883
 Averages of p :  INLET = 122879.91  OUTLET = 105000
 Averages of rho :  INLET = 0.44092278  OUTLET = 0.42706291
 Averages of T :  INLET = 968.66311  OUTLET = 861.43023
 Averages of U :  INLET = (-93.909463 0 0)  OUTLET = (-1.7016498 2.2553501 142.98454)
After this I ran up to 1500 iterations and results suddenly started diverging. At the end mass flow is uncompilable with inlet.
The error message was
Code:
 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/sml5kor/OpenFOAM/OpenFOAM-1.6-ext/src/thermophysicalModels/specie/lnInclude/specieThermoI.H at line 73
    Maximum number of iterations exceeded.  Rescue by HJ
What happened in your case ? Does results remain same after convergence or changed distinguishably ?
Can u share your case set up (only BC's MRFzone and system) ?

Regards,
Sangamesh Hosur
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