OpenFOAM-12/tutorials/multiphase/multiphaseEulerFoam/RAS/bubblePipe/constant/phaseProperties

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

type populationBalanceMultiphaseSystem;

phases (air1 air2 water);

populationBalances (bubbles);

air1
{
    type            pureIsothermalPhaseModel;

    diameterModel   velocityGroup;

    velocityGroupCoeffs
    {
        populationBalance    bubbles;

        shapeModel           spherical;

        sizeGroups
        (
            f1 {dSph  1e-3; value 1.0;}
            f2 {dSph  2e-3; value 0.0;}
            f3 {dSph  3e-3; value 0.0;}
            f4 {dSph  4e-3; value 0.0;}
            f5 {dSph  5e-3; value 0.0;}
        );
    }

    residualAlpha   1e-6;
}

air2
{
    type            pureIsothermalPhaseModel;

    diameterModel   velocityGroup;

    velocityGroupCoeffs
    {
        populationBalance    bubbles;

        shapeModel           spherical;

        sizeGroups
        (
            f6 {dSph  6e-3; value 1.0;}
            f7 {dSph  7e-3; value 0.0;}
            f8 {dSph  8e-3; value 0.0;}
            f9 {dSph  9e-3; value 0.0;}
            f10{dSph 10e-3; value 0.0;}
            f11{dSph 11e-3; value 0.0;}
            f12{dSph 12e-3; value 0.0;}
        );
    }

    residualAlpha   1e-6;
}

water
{
    type            pureIsothermalPhaseModel;

    diameterModel   constant;

    constantCoeffs
    {
        d               1e-4;
    }

    residualAlpha   1e-6;
}

populationBalanceCoeffs
{
    bubbles
    {
        continuousPhase water;

        coalescenceModels
        (
            LehrMilliesMewes{}
        );

        binaryBreakupModels
        (
            LehrMilliesMewes{}
        );

        breakupModels
        ();

        driftModels
        (
            densityChange{}
        );

        nucleationModels
        ();
    }
}

blending
{
    default
    {
        type            none;
        continuousPhase water;
    }
}

surfaceTension
(
    (air1 and water)
    {
        type            constant;
        sigma           0.083;
    }

    (air2 and water)
    {
        type            constant;
        sigma           0.083;
    }
);

interfaceCompression
();

drag
(
    (air1 in water)
    {
        type            IshiiZuber;

        residualRe      1e-3;
        swarmCorrection
        {
            type        none;
        }
    }

    (air2 in water)
    {
        type            IshiiZuber;

        residualRe      1e-3;
        swarmCorrection
        {
            type        none;
        }
    }
);

virtualMass
(
    (air1 in water)
    {
        type            constantCoefficient;
        Cvm             0.5;
    }

    (air2 in water)
    {
        type            constantCoefficient;
        Cvm             0.5;
    }
);

heatTransfer
();

phaseTransfer
();

lift
(
    (air1 in water)
    {
        type            wallDamped;

        wallDamping
        {
            type        cosine;
            Cd          3.0;
        }

        lift
        {
            type        Tomiyama;

            aspectRatio
            {
                type    Wellek;
            }
        }
    }

    (air2 in water)
    {
        type            wallDamped;

        wallDamping
        {
            type        cosine;
            Cd          3.0;
        }

        lift
        {
            type        Tomiyama;

            aspectRatio
            {
                type    Wellek;
            }
        }
    }
);

wallLubrication
(
    (air1 in water)
    {
        type            Antal;
        Cw1             -0.01;
        Cw2             0.05;
    }

    (air2 in water)
    {
        type            Antal;
        Cw1             -0.01;
        Cw2             0.05;
    }
);

turbulentDispersion
(
    (air1 in water)
    {
        type            Burns;
        sigma           0.9;
    }

    (air2 in water)
    {
        type            Burns;
        sigma           0.9;
    }
);

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