OpenFOAM-12/tutorials/multiphaseEuler/bubblePipe/constant/phaseProperties

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  12
     \\/     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
        (
            { dSph 1e-3; }
            { dSph 2e-3; }
            { dSph 3e-3; }
            { dSph 4e-3; }
            { dSph 5e-3; }
        );
    }

    residualAlpha   1e-6;
}

air2
{
    type            pureIsothermalPhaseModel;

    diameterModel   velocityGroup;

    velocityGroupCoeffs
    {
        populationBalance bubbles;

        shapeModel      spherical;

        sizeGroups
        (
            { dSph 6e-3; }
            { dSph 7e-3; }
            { dSph 8e-3; }
            { dSph 9e-3; }
            { dSph 10e-3; }
            { dSph 11e-3; }
            { dSph 12e-3; }
        );
    }

    residualAlpha   1e-6;
}

water
{
    type            pureIsothermalPhaseModel;

    diameterModel   none;

    residualAlpha   1e-6;
}

populationBalanceCoeffs
{
    bubbles
    {
        continuousPhase water;

        coalescenceModels
        (
            LehrMilliesMewes
            {}
        );

        binaryBreakupModels
        (
            LehrMilliesMewes
            {}
        );

        breakupModels
        ();

        driftModels
        (
            densityChange
            {}
        );

        nucleationModels
        ();
    }
}

blending
{
    default
    {
        type            continuous;
        phase           water;
    }
}

surfaceTension
{
    air1_water
    {
        type            constant;
        sigma           0.083;
    }

    air2_water
    {
        type            constant;
        sigma           0.083;
    }
}

interfaceCompression
{}

drag
{
    air1_dispersedIn_water
    {
        type            IshiiZuber;
    }

    air2_dispersedIn_water
    {
        type            IshiiZuber;
    }
}

virtualMass
{
    air1_dispersedIn_water
    {
        type            constantCoefficient;
        Cvm             0.5;
    }

    air2_dispersedIn_water
    {
        type            constantCoefficient;
        Cvm             0.5;
    }
}

heatTransfer
{}

phaseTransfer
{}

lift
{
    air1_dispersedIn_water
    {
        type            wallDamped;

        wallDamping
        {
            type        cosine;
            Cd          3.0;
        }

        lift
        {
            type        Tomiyama;

            aspectRatio
            {
                type    Wellek;
            }
        }
    }

    air2_dispersedIn_water
    {
        type            wallDamped;

        wallDamping
        {
            type        cosine;
            Cd          3.0;
        }

        lift
        {
            type        Tomiyama;

            aspectRatio
            {
                type    Wellek;
            }
        }
    }
}

wallLubrication
{
    air1_dispersedIn_water
    {
        type            Antal;
        Cw1             -0.01;
        Cw2             0.05;
    }

    air2_dispersedIn_water
    {
        type            Antal;
        Cw1             -0.01;
        Cw2             0.05;
    }
}

turbulentDispersion
{
    air1_dispersedIn_water
    {
        type            Burns;
        sigma           0.9;
    }

    air2_dispersedIn_water
    {
        type            Burns;
        sigma           0.9;
    }
}

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