[august]

I have been running my simulation at my home computer (OpenFoam v2012 ) of a simple disc in a virtual wind tunnel ( using the motor bike tutorial). I was able to obtain three coefficient of moments (roll, pitch, and yaw). However, I moved to using the lab's computer that has v1806 installed. I am running the same exact codes, just changing the value of the variables, and I noticed I have been getting the total moment coefficient instead of roll, pitch and yaw. For my research, I am interested in the pitching moment, so I am wondering on what I can do in controlDict file to get the pitching moment?

Sample of the controlDict

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

libs ("libOpenFOAM.so" "libfieldFunctionObjects.so");

application pisoFoam;

startFrom latestTime;

startTime 0;

stopAt endTime;

endTime 0.4;

deltaT 1.0e-5;

writeControl timeStep;

writeInterval 20;

purgeWrite 0;

writeFormat binary;

writePrecision 6;

writeCompression off;

timeFormat general;

timePrecision 6;

runTimeModifiable true;


functions
{
forces
{
type forceCoeffs;
libs ("libforces.so");
writeControl timeStep;
writeInterval 1;

patches ("disc.*");
rho rhoInf; // Indicates incompressible
log true;
rhoInf 1; // Redundant for incompressible
liftDir (0 0 1);
dragDir (1 0 0);
CofR (0 0 0); // Axle midpoint on ground
pitchAxis (0 1 0);
magUInf 2;
lRef 0.01; // Wheelbase length
Aref 0.005; // Estimated
}

fieldAverage
{
type fieldAverage;
libs ("libfieldFunctionObjects.so");
writeControl timeStep;
writeInterval 1;

fields
(
U
{
mean on;
prime2Mean on;
base time;
}

p
{
mean on;
prime2Mean on;
base time;
}
vorticity
{
mean on;
prime2Mean on;
base time;
}
);
}

#include "cuttingPlane"
#include "streamLines"
#include "forceCoeffs"
#include "probes"
}


// ************************************************** *********************** //