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unknown problems of a cascade case

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Old   May 11, 2013, 10:20
Default unknown problems of a cascade case
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sqing
Join Date: Sep 2012
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Hi foamers,

I have set up a cascade case with a total pressure at inlet, and static pressure at outlet. However it crushes after about 500 iterations, and I can't find out the problem. Here is the error notes on the terminal:
PHP Code:
Courant Number mean0.000816769 max0.207725
Time 
5.17e-05
diagonal
:  Solving for rhoInitial residual 0, Final residual 0No Iterations 0
DILUPBiCG
:  Solving for UxInitial residual 0.00258029, Final residual 2.47124e-09No Iterations 1
DILUPBiCG
:  Solving for UyInitial residual 0.00267984, Final residual 2.28166e-09No Iterations 1
DILUPBiCG
:  Solving for hInitial residual 0.00253004, Final residual 2.94904e-09No Iterations 1
DICPCG
:  Solving for pInitial residual 0.007625, Final residual 1.02296e-07No Iterations 1
diagonal
:  Solving for rhoInitial residual 0, Final residual 0No Iterations 0
time step continuity errors 
sum local 1.94796e-08, global = 1.42837e-08cumulative 1.43109e-06
rho max
/min 2 0.5
DICPCG
:  Solving for pInitial residual 1.30124e-05, Final residual 2.85334e-10No Iterations 1
diagonal
:  Solving for rhoInitial residual 0, Final residual 0No Iterations 0
time step continuity errors 
sum local 1.42649e-08, global = 1.42503e-08cumulative 1.44534e-06
rho max
/min 2 0.5
DILUPBiCG
:  Solving for omegaInitial residual 0.00012879, Final residual 3.52752e-09No Iterations 1
DILUPBiCG
:  Solving for kInitial residual 0.000171787, Final residual 3.93006e-09No Iterations 1
bounding k
min: -6.78537 max46058.1 average334.576
ExecutionTime 
983.52 s  ClockTime 984 s
Courant Number mean
0.000816995 max0.207921
Time 
5.18e-05
diagonal
:  Solving for rhoInitial residual 0, Final residual 0No Iterations 0
DILUPBiCG
:  Solving for UxInitial residual 0.00257906, Final residual 2.03599e-09No Iterations 1
DILUPBiCG
:  Solving for UyInitial residual 0.00267935, Final residual 2.25978e-09No Iterations 1
DILUPBiCG
:  Solving for hInitial residual 0.00251794, Final residual 2.75875e-09No Iterations 1
#0  Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam211/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#1  Foam::sigFpe::sigHandler(int) in "/opt/openfoam211/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#2   in "/lib/x86_64-linux-gnu/libc.so.6"
#3  Foam::hPsiThermo<Foam::pureMixture<Foam::sutherlandTransport<Foam::specieThermo<Foam::hConstThermo<Foam::perfectGas> > > > >::calculate() in "/opt/openfoam211/platforms/linux64GccDPOpt/lib/libbasicThermophysicalModels.so"
#4  Foam::hPsiThermo<Foam::pureMixture<Foam::sutherlandTransport<Foam::specieThermo<Foam::hConstThermo<Foam::perfectGas> > > > >::correct() in "/opt/openfoam211/platforms/linux64GccDPOpt/lib/libbasicThermophysicalModels.so"
#5  
 
in "/opt/openfoam211/platforms/linux64GccDPOpt/bin/rhoPimpleFoam"
#6  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#7  
 
in "/opt/openfoam211/platforms/linux64GccDPOpt/bin/rhoPimpleFoam"
floating point exception 
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