[Nemo_CFDEngineer]

Dear Foamers

I want to simulate ship with 3DoF using waveDyMFoam but before that I am testing it on a cube(2x2x2m).

I was able to genrate wave by fixing my cube using waveFoam. Now I want to give speed (to water) like in interFoam but I am unable to do that. I have gone through almost all threads related to waveFoam but no success.

I am also testing waveDyMFoam on cube but a bit confuse about dynamic dict like inner and outer distance, restrain damper coeff

Please, can someone show me some light about this. I will be very thankfull

[Nemo_CFDEngineer]

Dear Foamer

How to set velocity U in waveDyMFoam like in interDyMFoam. Please guide me for this.

Regards
Nemo

[Nemo_CFDEngineer]

How to give velocity to water in waves2Foam

[ngj]

The question is too ambiguous to be answered. If you expect to be helped, you need to put an effort into the questions you ask.

Kind regards,

Niels

[Nemo_CFDEngineer]

Dear Dr. Jacobsen,

Thank you for such a good tool. And I apologize for the incomplete question which I posted earlier. I have successfully simulated my ship using waveDyMFoam using default values. But my project work also require water speed with waves.

Default U dictionary is like this:

internalField   uniform (0 0 0);

boundaryField
{
    atmosphere
    {
        type            pressureInletOutletVelocity;
        value           uniform (0 0 0);
    }
    outlet
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }
    inlet
    {
        type            waveVelocity;
        refValue        uniform (0 0 0);
        refGradient     uniform (0 0 0);
        valueFraction   uniform 1;
        value           uniform (0 0 0);

    }
    bottom
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }
    left
    {
        type            symmetryPlane;
    }
    right
    {
        type            symmetryPlane;
    }
    hull
    {
        type            movingWallVelocity;
        value           uniform (0 0 0);
    }
}

I have tried to put some value at inlet:

inlet
    {
       type            waveVelocity;
        refValue        uniform (-0 0 0);
        refGradient     uniform (0 0 0);
        valueFraction   uniform 1;
        value           uniform (3 0 0);

But it only setting value at inlet. Should I need to change BC (waveVelocity).
I need to set water speed in all water domain like we do in InterFoam
Please guide me for this. I will be very thankful
Thank you so much in advance
Mohd Naimuddin

[ngj]

Good evening.

@Mohd: The easiest is likely to make your own combination of wave theories and a steady current. I am saying this, because the wave numbers changes due to Doppler effects and this is not included in the wave theories (except for streamFunction).

Kind regards,

Niels