[nazli]

Hi FOAMers
I'm new in OpenFoam and trying to simulate flow over a cylinder that has a round solid surrounding around it.my solver is chtMultiRegionFoam & edit /tutorials/heatTransfer/multiRegionHeater. I get right answer of T,U,P. but the problem is when i want to apply force coefficient setting at the end of controlDict.I added below code at the end of controlDict but after running i found no postProcessing folder.

functions
{
forceCoeffs1

{
type forceCoeffs;

functionObjectLibs ( "libforces.so" );

writeControl timeStep;
writeInterval 100;
log yes;
patches ( wall );
pName p;
UName U;
log true;
rho rhoInf;
rhoInf 1;
liftDir (0 1 0);
dragDir (1 0 0);
CofR (0 0 0); // Axle midpoint on ground
pitchAxis (0 0 1);
magUInf 1;
lRef 6; // Wheelbase length
Aref 6; // Estimated

}
}
I checked log folder and found calculating without solving force coefficient, the only thing I found is( warning & error ) before starting iterations :

--> FOAM Warning :
From function bool Foam::functionObjectList::read()
in file db/functionObjects/functionObjectList/functionObjectList.C at line 644
Caught FatalError
--> FOAM FATAL ERROR:

request for objectRegistry region0 from objectRegistry disk failed
available objects of type objectRegistry are

2
(
solidzone
fluidzone
)


From function const Type& Foam:bjectRegistry::lookupObject(const Foam::word&) const [with Type = Foam:bjectRegistry]
in file /home/sibco/OpenFOAM/OpenFOAM-4.0/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 193.

I wonder if anyone can explain me chtMultiRegionFoam solver can calculate force coefficient for fluid zone ?
Thank you!