OpenFOAM-6/etc/caseDicts/preProcessing/setFieldsDict

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  6
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      setFieldsDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

defaultFieldValues
(
    volScalarFieldValue alpha.water 0
    volVectorFieldValue U (0 0 0)
);

regions
(
    // Setting values inside a box
    boxToCell
    {
        box     (0 0 0) (30 30 30);
        fieldValues
        (
            volScalarFieldValue alpha.water 1
            volVectorFieldValue U (1 0 0)
        );
    }

    // Setting values inside a sphere
    sphereToCell
    {
        centre  (40 40 40);
        radius  10;
        fieldValues
        (
            volScalarFieldValue alpha.water 1
            volVectorFieldValue U (1 0 0)
        );
    }

    // Setting values inside a surface geometry file
    surfaceToCell
    {
        file           "geometry.obj";
        outsidePoints  ( (0 0 0) );
        includeCut     no;
        includeInside  yes;
        includeOutside no;
        nearDistance   0;
        curvature      0;
        fieldValues
        (
            volScalarFieldValue alpha.water 1
            volVectorFieldValue U (1 0 0)
        );
    }
);


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