[DLC]

Hello Everyone!

I'm testing simpleFoam (OF 1.7) on the classic NACA 0012. To obtain forces on the airfoil I use the following commands in the controlDict:

functions
(
forces
{
type forces;
functionObjectLibs ("libforces.so"); //Lib to load
patches (wing); // change to your patch name
rhoInf 1.225; //Reference density for fluid
CofR (0.15 0 0); //Origin for moment calculations
outputControl outputTime;
}
forceCoeffs
{
type forceCoeffs;
functionObjectLibs ("libforces.so");
patches (wing); //change to your patch name
rhoInf 1.225;
CofR (0 0 0);
liftDir (0 1 0);
dragDir (1 0 0);
pitchAxis (0 0 0);
magUInf 55.5;
lRef 0.6;
Aref 1;
outputControl outputTime;
}
);




When I launch the run, this warning message is given and no forces/forces.dat is made (the run goes without any problem)
the same commands work perfectly on interFoam..

can anyone help me?
thanks!

Starting time loop

--> FOAM Warning :
From function void forces::read(const dictionary& dict)
in file forces/forces.C at line 277
Could not find U, p or rho in database.
De-activating forces.
--> FOAM Warning :
From function void forces::read(const dictionary& dict)
in file forces/forces.C at line 277
Could not find U, p or rho in database.
De-activating forces.
Time = 1