[twnspl]

I am using OpenFOAM v2206 to simulate flow over a object. I am using the simpleFoam solver. I have force functions to extract the forces on the patches of my object. Although my write interval is at 50 the solver keeps writing at all the steps. I end up with huge file sizes which is severely restricting my resources. I have shared the control dict file here. I need some suggestions on how to stop the code from writing at every iterations and how to reduce the file size of the runs.

 /*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2106                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/



FoamFile
{
    version 2.0;
    format binary;
    class dictionary;
    location "";
    object controlDict;
}
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/

application         simpleFoam;

startFrom         startTime;

startTime        0;

stopAt         endTime;

endTime        1200;

deltaT         1;

writeControl         runTime;

writeInterval        50;

purgeWrite        0;

writeFormat        ascii;

writePrecision        6;

writeCompression    on;

timeFormat        general;

timePrecision        6;

runTimeModifiable    true;

functions

{

aft_wing_forces

{

    type forces;

    libs (forces);

    patches (tw_le tw_te tw_surf);

    rho rhoInf;

    log true;

    rhoInf 1;

    CofR (0 0 0);

    writeControl runTime;

    writeInterval 10;
}


fore_wing_forces

{

    type forces;

    libs (forces);

    patches (fw_le fw_te fw_surf);

    rho rhoInf;

    log true;

    rhoInf 1;

    CofR (0 0 0);

    writeControl runTime;

    writeInterval 10;
}

tail_forces

{

    type forces;

    libs (forces);

    patches (tail_le tail_te tail_surf);

    rho rhoInf;

    log true;

    rhoInf 1;

    CofR (0 0 0);

    writeControl runTime;

    writeInterval 10;
}


fuselage_forces

{

    type forces;

    libs (forces);

    patches (fuselage);

    rho rhoInf;

    log true;

    rhoInf 1;

    CofR (0 0 0);

    writeControl runTime;

    writeInterval 10;
}

payload_forces

{

    type forces;

    libs (forces);

    patches (payload);

    rho rhoInf;

    log true;

    rhoInf 1;

    CofR (0 0 0);

    writeControl  runTime;

    writeInterval 10;    
}

payload_forces

{

    type forces;

    libs (forces);

    writeControl timeStep;

    writeInterval 10;

    patches (pylon_capylon pylon_surf);

    rho rhoInf;

    log true;

    rhoInf 1;

    CofR (0 0 0);
    
    writeControl runTime;

    writeInterval 10;
}

total_forces

{

    type forces;

    libs (forces);

    patches (tw_le tw_te tw_surf fw_le fw_te fw_surf tail_le tail_te tail_surf fuselage payload pylon_capylon pylon_surf);

    rho rhoInf;

    log true;

    rhoInf 1;

    CofR (0 0 0);
    
    writeControl  runTime;

    writeInterval 10;

}
}

[agustinvo]

If you're only interested in the fields and not in the log file (generated during your simulation) you can deactivate it.

You can check as well that your are writing some fields every 10 timeSteps. Have you tried to set a larger number of iterations, or writing when simpleFoam writes the fields? Check the different available writeControl options.

PS: I suggest to move this thread to another more suitable place

[Su JH]

// writeControl timeStep;
// writeInterval 10;
writeControl none;
executeControl timeStep;
executeInterval 10;


works