[musahossein]

Dear all:

I am referencing libforces.so in my controldict. However I need to know how to preset the output. Currently, my write interval is set to 0.05 and I would like the force output to be at the same time. How do I do it? How do I set outputTime and output interval so the output is at 0.05 increments?

Thanks in advance.

 /*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.0.1                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

application     interDyMFoam;

startFrom       startTime;

startTime       0;

stopAt          endTime;

endTime         48;

deltaT        0.001;

writeControl    adjustableRunTime;

 writeInterval   0.05;

purgeWrite      0;

writeFormat     ascii;

writePrecision  6;

writeCompression compressed;

timeFormat      general;

timePrecision   6;

runTimeModifiable yes;

adjustTimeStep  yes;

maxCo           0.5;
maxAlphaCo   0.5;

maxDeltaT       1;

functions
{

       wallPressure
      {
        type            surfaces;
        functionObjectLibs ("libsampling.so");
        outputControl   outputTime;
        surfaceFormat   raw;
        fields    ( alpha1
                  p
            );
    interpolationScheme cell;
        surfaces
        (
            leftwalls
            {
                type        patch;
                patches     (leftWall);
        interpolate true;
                triangulate false;
            }
        rightwalls
            {
                type        patch;
                patches     (rightWall);
        interpolate true;
                triangulate false;
            }
        );
       }

    forces
    {
    type forces;
    functionObjectLibs ("libforces.so");         //Lib to load
    outputControl outputTime;
    patches (leftWall rightWall);
    pName p;
    UName U;
    rhoName rhoInf;
    rhoInf 998.2;                     //Reference density for fluid
    nuInf 1e-06;
    CofR (0 0 0);                    //Origin for moment calculations

    outputControl timeStep;
   outputInterval 1;
    }
    

} // end functions

[wyldckat]

Hi Musaddeque,

The current configuration you have should work as you want it to.

For more information: http://foam.sourceforge.net/docs/cpp/a00002.html
(it's the page on the link "Post-processing" that is accessible from the main index: http://foam.sourceforge.net/docs/cpp/index.html )

Best regards,
Bruno

[musahossein]

Thankyou for your explanation.

Many thanks for all your past and present responses. They certainly have helped me along the way (and I am sure other members of the forum have benefited).