[sepbub]

Hallo together!
I'm just trying to calculate my first lager project, so maybe I've made some basic mistakes.
So my goal is to calculate an opened Windtunnel (see photo). All walls should have a boundary layer and the model is symmetric. So in my oppinion it should be ok, to calculate a quarter of the tunnel.
When using simpleFoam I'll get the following Error:

smoothSolver:  Solving for Ux, Initial residual = 1, Final residual = 15.5344, No Iterations 1000
smoothSolver:  Solving for Uy, Initial residual = 1, Final residual = 1.26609, No Iterations 1000
smoothSolver:  Solving for Uz, Initial residual = 1, Final residual = 0.44793, No Iterations 1000
#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::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const at ??:?
#4  Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:?
#5  Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#6  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
#7  Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
#8  Foam::fvMatrix<double>::solve() in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
#9  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
#10  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#11  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
Gleitkomma-Ausnahme (Speicherabzug geschrieben)

I assume the reason for that unconvergence are wrong start conditions?!
Here are they:
U:

dimensions      [0 1 -1 0 0 0 0];

internalField   uniform (19 0 0);

boundaryField
{
    symmetry
    {
        type            symmetry;
    }

    wall
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }

    outlet
    {
        type            fixedValue;
        value           uniform (-8 0 0);
        
    }
    inlet
    {
        type            fixedValue;
        value           uniform (-1.2666 0 0);        
//type            zeroGradient;
    }
}

p:

dimensions      [0 2 -2 0 0 0 0];

internalField   uniform 0;

boundaryField
{
    symmetry
    {
        type            symmetry;
    }
    wall
    {
        type            zeroGradient;
    }

    inlet
    {
        type            fixedValue;
        value           uniform 0;
    }
    outlet
    {
        type            zeroGradient;
    }
}

nut:

dimensions      [0 2 -1 0 0 0 0];

internalField   uniform 0;

boundaryField
{
    symmetry
    {
        type            symmetry;
    }
    wall
    {
        type            nutkWallFunction;
        value           uniform 0;
    }

    inlet
    {
        type            calculated;
        value           uniform 0;
    }
    outlet
    {
        type            calculated;
        value           uniform 0;
    }
}

and nutTilda:

dimensions      [0 2 -1 0 0 0 0];

internalField   uniform 0.14;

boundaryField
{
    symmetry
    {
        type            symmetry;
    }
    wall
    {
        type            zeroGradient; 
    }

    inlet
    {
        type            fixedValue;
        value           uniform 0;
    }
    outlet
    {
        type            zeroGradient; 
    }
}

For the completeness my controlDict:

application     simpleFoam;

startFrom       startTime;

startTime       0;

stopAt          endTime;

endTime         100000;

deltaT          1;

writeControl    timeStep;

writeInterval   5000;

purgeWrite      0;

writeFormat     ascii;

writePrecision  6;

writeCompression off;

timeFormat      general;

timePrecision   6;

runTimeModifiable true;

For tubulence modeling I use SpalartAlmaras.

So are there obvious mistakes in my Files, or shall I have a look on some other stuff I didn't considere right now?
Thanks a lot!


(All Mesh Checks went well)