[letoppina]

Hello,



I am using OpenFOAM version 6 and chtmultiregionfoam solver. This is my current boundary condition (sinusoidal motion) for the velocity of water region (fluid region):

internalField   uniform (0 0 0);

boundaryField
{
    #includeEtc "caseDicts/setConstraintTypes"

    minX
    {    
        type        uniformFixedValue;
    uniformValue sine;
        uniformValueCoeffs
        {
            frequency 0.1;
            amplitude 0.015;
            scale     (0.8 0 0); 
            level     (0 0 0); // offset
            t0          0; // shift this for a Cosinus
        }          

    }
    maxX
    {
        type            zeroGradient;
    }

    "(min|max)(Z)"
    {
        type            empty;
        ~value;
    }

    "water_to_.*"
    {
        type            noSlip;
    }
}

If I want to give a phase shift of the sinusoidal waveform (for instance, a 60 degree shift), how can I impose it? (I guess I would have to modify the t0 value but I am not sure how precisely).



Thank you all for your help!