[benqing]

Hi,

I have problem with simulation flow over backward-facing step with system rotation by OpenFoam,DNS results in literature "Turbulent flow over a backward-facing step.Part 1. Effects of anti-cyclonic system rotation". the domain in Attach Files .
I used OpenFoam with solver SRFPimpleFoam. I set intinial conditions and parameters follow tutorial Mixer but i get wrong result. So i am not sure it is proper to ues this slover and which one i should ues .
The Urel file is following:

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

internalField uniform ( 0 0 0 );

boundaryField
{
INLET
{
type SRFVelocity;
inletValue uniform ( 5.6 0 0);//inlet Velocity is 5.6m/s
relative no;//not sure
value uniform ( 0 0 0 );
}
OUTLET
{
type zeroGradient;
}
TOP
{
type fixedValue;
value uniform (0 0 0 );
}
BOTTOM
{
type fixedValue;
value uniform (0 0 0 );
}
BACKANDFRONT
{
type empty;
}
}

And SRFProperties file is following:

SRFModel rpm;

axis (0 0 -1);

rpmCoeffs
{
rpm 267.5;
}

From what I can see,Boundary conditions of inlet in Urel is wrong ,but i dont know which one is correct.Please help me solver this problem? I very confused...
thanks ,benqing

[benqing]

after two years ,I have not sloved the problom yet ,did anyone help me ?
now i have an another question ,which BC should i apply at the inlet ？SRFVelocity or fixedValue ？

benqing