openfoam/tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledMultiRegionHeater/system/controlDict

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

// Library defines new boundary conditions
libs            ("libOpenFOAM.so" "libjobControl.so");

application     chtMultiRegionFoam;

startFrom       startTime;

startTime       0;

stopAt          endTime;

endTime         1;

deltaT          0.001;

writeControl    adjustableRunTime;
writeInterval   0.1;

purgeWrite      0;

writeFormat     ascii;

writePrecision  8;

writeCompression off;

timeFormat      general;

timePrecision   6;

runTimeModifiable yes;

maxCo           0.6;

// Maximum diffusion number
maxDi           10.0;

adjustTimeStep  yes;

functions
{
    externalCoupled
    {
        // Where to load it from (if not already in solver)
        functionObjectLibs ("libjobControl.so");

        type            externalCoupled;

        // Directory to use for communication
        commsDir        "${FOAM_CASE}/comms";

        // Does external process start first
        initByExternal  true;

        // Additional output
        log             true;

        regions
        {
            // Region name (wildcards allowed)
            "(topAir|heater)"
            {
                // In topAir adjust the minX patch (fixedValue)

                // Patch or patchGroup
                coupleGroup
                {
                    // Fields to output in commsDir
                    writeFields (T);
                    // Fields to read from commsDir
                    readFields  (T);
                }
            }
        }
    }
}


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