# solving BFS with rhoTurbFoam in OpenFOAM 1.5

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 June 11, 2010, 00:36 solving BFS with rhoTurbFoam in OpenFOAM 1.5 #1 Member   kiran Ambilpur Join Date: Jun 2010 Posts: 34 Rep Power: 7 Hi FOAMers i am solving solving backward facing step problem with rhoTurbFoam( transient solver for compressible turbulent flows). Inlet conditions are P(static) = 39KPa T (total)= 300k Mach no= 2 and i am using K-Epsilon turbulence model. for the above stated conditions solver is not running till the given time, it is giving the error as follows Courant Number mean: 0.12239 max: 0.673613 Time = 0.00153982 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 DILUPBiCG: Solving for Ux, Initial residual = 0.00028022, Final residual = 7.95395e-06, No Iterations 1 DILUPBiCG: Solving for Uy, Initial residual = 0.000296888, Final residual = 4.06123e-06, No Iterations 1 DILUPBiCG: Solving for h, Initial residual = 0.000420226, Final residual = 6.53906e-06, No Iterations 1 DICPCG: Solving for p, Initial residual = 0.000579806, Final residual = 2.0317e-07, No Iterations 1 DICPCG: Solving for p, Initial residual = 2.03148e-07, Final residual = 2.03148e-07, No Iterations 0 DICPCG: Solving for p, Initial residual = 2.03148e-07, Final residual = 2.03148e-07, No Iterations 0 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 time step continuity errors : sum local = 1.27198e-07, global = -4.81332e-08, cumulative = -7.72037e-05 DILUPBiCG: Solving for h, Initial residual = 0.00744003, Final residual = 2.16506e-07, No Iterations 3 DICPCG: Solving for p, Initial residual = 0.00145661, Final residual = 9.72992e-09, No Iterations 2 DICPCG: Solving for p, Initial residual = 9.98167e-09, Final residual = 9.98167e-09, No Iterations 0 DICPCG: Solving for p, Initial residual = 9.98167e-09, Final residual = 9.98167e-09, No Iterations 0 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 time step continuity errors : sum local = 6.08022e-09, global = 2.2917e-09, cumulative = -7.72014e-05 DILUPBiCG: Solving for epsilon, Initial residual = 0.167629, Final residual = 6.67002e-07, No Iterations 2 DILUPBiCG: Solving for k, Initial residual = 0.161715, Final residual = 3.20616e-06, No Iterations 1 bounding k, min: -125860 max: 58146.2 average: 717.796 ExecutionTime = 207.04 s ClockTime = 239 s Courant Number mean: 0.122003 max: 0.764888 Time = 0.00154009 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 DILUPBiCG: Solving for Ux, Initial residual = 0.0134332, Final residual = 4.50173e-06, No Iterations 2 DILUPBiCG: Solving for Uy, Initial residual = 0.0112129, Final residual = 7.02826e-06, No Iterations 2 DILUPBiCG: Solving for h, Initial residual = 0.0107112, Final residual = 2.1616e-06, No Iterations 2 Maximum number of iterations exceeded#0 Foam::error:rintStack(Foam::Ostream&) in "/home/user/OpenFOAM/1.5/OpenFOAM-1.5/lib/linuxGccDPOpt/libOpenFOAM.so" #1 Foam::error::abort() in "/home/user/OpenFOAM/1.5/OpenFOAM-1.5/lib/linuxGccDPOpt/libOpenFOAM.so" #2 Foam::hThermo > > > >::calculate() in "/home/user/OpenFOAM/1.5/OpenFOAM-1.5/lib/linuxGccDPOpt/libbasicThermophysicalModels.so" #3 Foam::hThermo > > > >::correct() in "/home/user/OpenFOAM/1.5/OpenFOAM-1.5/lib/linuxGccDPOpt/libbasicThermophysicalModels.so" #4 main in "/home/user/OpenFOAM/1.5/OpenFOAM-1.5/applications/bin/linuxGccDPOpt/rhoTurbFoam" #5 __libc_start_main in "/lib/libc.so.6" #6 Foam::regIOobject::readIfModified() in "/home/user/OpenFOAM/1.5/OpenFOAM-1.5/applications/bin/linuxGccDPOpt/rhoTurbFoam" From function specieThermo::T(scalar f, scalar T0, scalar (specieThermo::*F)(const scalar) const, scalar (specieThermo::*dFdT)(const scalar) const) const in file /home/dm2/henry/OpenFOAM/OpenFOAM-1.5/src/thermophysicalModels/specie/lnInclude/specieThermoI.H at line 78. FOAM aborting this is the error i have given outlet conditions as zerogradients so please help me out!!!!!!!!!!!!!!!!!.

 Tags 1.5, bfs, rhoturbfoam

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