[danvica]

I'm simulating a waterfall device using Interfoam. Everything's fine but the outlet.

If you look at the picture you'll see the water at the end of the domain that seems reflected by the outlet surface. Isn't supposed to just disappear as soon as it touchs the surface ?


Here is my BC:

FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    location    "0";
    object      alpha1;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions      [0 0 0 0 0 0 0];
internalField   uniform 0;
boundaryField
{
    inlet
    {
        type            fixedValue;
        value           uniform 1;
    }
    outlet
    {
        type            inletOutlet;
        inletValue      uniform 0;
        value           uniform 0;
    }
    walls
    {
        type            zeroGradient;
    }
    defaultFaces
    {
        type            zeroGradient;
    }
}
 
FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    object      p_rgh;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions      [1 -1 -2 0 0 0 0];
internalField   uniform 0;
boundaryField
{
    inlet
    {
        type            buoyantPressure;
        value           uniform 0;
    }
 
    outlet
    {
        type            totalPressure;
        p0              uniform 0;
        U               U;
        phi             phi;
        rho             rho;
        psi             none;
        gamma           1;
        value           uniform 0;
    }
    walls
    {
        type            buoyantPressure;
        value           uniform 0;
    }
 
    defaultFaces
    {
        type            buoyantPressure;
        value           uniform 0;
    }
}
 
 
FoamFile
{
    version     2.0;
    format      ascii;
    class       volVectorField;
    location    "0";
    object      U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions      [0 1 -1 0 0 0 0];
internalField   uniform (0 0 0);
boundaryField
{
    outlet
    {
        type            pressureInletOutletVelocity;
        value           uniform (0 0 0);
    }
 
    inlet
    {
        type            fixedValue;
        value           uniform (0 1 0);
 
    }
 
    walls
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }
 
    defaultFaces
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }
}

Any comment ?