[The King]

Hi,
I'm comparing forces calculated with rhoPimpleFoam and pimpleFoam using "libforces.so":

forces
{
type forces;
functionObjectLibs ( "libforces.so" );
writeControl timeStep;
writeInterval 1;
patches ( "my_wall.*" );
pName p;
UName U;
rhoName rho; //rhoInf for pimpleFoam
pRef 0;
log true;
CofR ( 0 0 0 );
}

The forces are getting about 30 times higher in rhoPimpleFoam then for pimpleFoam. I know from measurements that the force calculated by pimpleFoam is realistic. My Mach number is far below 1 so I expected the same results. Anyone experienced this and maybe solved?!?