[hiuluom]

Hi everyone,

I am simulating compressible flow a tank using rhosimplefoam openfoam 2.1.1.

I met thermalphysical error:

Time = 2e-07

smoothSolver: Solving for Ux, Initial residual = 0.395538, Final residual = 0.000707363, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 0.827859, Final residual = 0.000124997, No Iterations 2
smoothSolver: Solving for Uz, Initial residual = 0.392585, Final residual = 0.000607123, No Iterations 2
DILUPBiCG: Solving for h, Initial residual = 1, Final residual = 0.0725096, No Iterations 17
#0 Foam::error::printStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::hPsiThermo<Foam::pureMixture<Foam::sutherlan dTransport<Foam::specieThermo<Foam::hConstThermo<F oam::perfectGas> > > > >::calculate() at ??:?
#4 Foam::hPsiThermo<Foam::pureMixture<Foam::sutherlan dTransport<Foam::specieThermo<Foam::hConstThermo<F oam::perfectGas> > > > >::correct() at ??:?
#5
at ??:?
#6 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#7
at ??:?

I modified the fvscheme and fvsolution. The warning of thermophysical was not but I met problem with fvsolution.

Starting time loop

Time = 1e-07

smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 0.0285953, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 1, Final residual = 0.0966713, No Iterations 2
smoothSolver: Solving for Uz, Initial residual = 1, Final residual = 0.0323246, No Iterations 2
DILUPBiCG: Solving for h, Initial residual = 0.470998, Final residual = 0.0142199, No Iterations 1
GAMG: Solving for p, Initial residual = 1, Final residual = 0.0772682, No Iterations 8
time step continuity errors : sum local = 1.93031e-06, global = -1.05063e-07, cumulative = -1.05063e-07
rho max/min : 0.880476 0.380476


--> FOAM FATAL IO ERROR:
keyword epsilon is undefined in dictionary "/home/dfm/Working/giangth/DOFI-Develop/ValidationCase/Gas_Generature/reactingFoam/GasGenerator_compressible_1-hole-per-line_ver2New/system/fvSolution::solvers"

file: /home/dfm/Working/giangth/DOFI-Develop/ValidationCase/Gas_Generature/reactingFoam/GasGenerator_compressible_1-hole-per-line_ver2New/system/fvSolution::solvers from line 22 to line 64.

From function dictionary::subDict(const word& keyword) const
in file db/dictionary/dictionary.C at line 461.

FOAM exiting

Can anyone show me my mistake in fvscheme and fvsolution, please?

Thank you so much.

[hiuluom]

I solved the problem by change in fvSolution as the cautions of OF.

Thanks.

[deepbandivadekar]

Originally Posted by hiuluom

I solved the problem by change in fvSolution as the cautions of OF.

Thanks.

A lot of time has passed, but I wonder what exactly you changed in fvSolutions. I'm getting almost same error but without a single iteration.

[hiuluom]

Originally Posted by deepbandivadekar

A lot of time has passed, but I wonder what exactly you changed in fvSolutions. I'm getting almost same error but without a single iteration.

My problem was the keyword "epsilon" missed in fvSolution file. I only added it in file.