[sjsivabharathy]

I'm using pisofoam to compute flow past a square cylinder at Re = 25.
The flow is steady at this Reynolds number, and I want to use piso for
my steady state problem.
My controlDict file is below
/////////////////////////////////////
application pisoFoam;

startFrom startTime;

startTime 0;

stopAt endTime;

endTime 2000;

deltaT 1;

writeControl timeStep;

writeInterval 500;

purgeWrite 0;

writeFormat ascii;

writePrecision 12;

writeCompression off;

timeFormat general;

timePrecision 6;

runTimeModifiable true;
//////////////////////////////////
This is my fvSchemes file
/////////////////////////////////
ddtSchemes
{
default steadyState;
}

gradSchemes
{
default Gauss linear;
}

divSchemes
{
default none;
div(phi,U) Gauss limitedLinearV 1;
div(phi,k) Gauss limitedLinear 1;
div(phi,epsilon) Gauss limitedLinear 1;
div(phi,omega) Gauss limitedLinear 1;
div(phi,R) Gauss limitedLinear 1;
div(R) Gauss linear;
div(phi,nuTilda) Gauss limitedLinear 1;
div((nuEff*dev2(T(grad(U))))) Gauss linear;
}

laplacianSchemes
{
default Gauss linear corrected;
}

interpolationSchemes
{
default linear;
}

snGradSchemes
{
default corrected;
}

The solver stops after the first iteration. The maximum courant number is around 133.
Can I use piso to obtain steady-state solution? If so what changes
do I need to make to obtain it?

Thanks,
Jawahar.

[RobertHB]

Your Courant number is to high (plenty of threads about that topic). For a first step, decrease your timestep.