U

FoamFile
{
    version     2.0;
    format      ascii;
    class       volVectorField;
    object      U;
}

dimensions      [0 1 -1 0 0 0 0];

internalField   uniform (0 0 0);

boundaryField
{
    inlet
    {
        type            uniformFixedValue;
        uniformValue    table
                        (
                          (0 (0 0 0))
                          (1 (10 0 0))
                        );
    }
    outlet
    {
        type            zeroGradient;
    }
    flap
    {
        type            movingWallVelocity;
        value           uniform (0 0 0);
    }
    upperWall
    {
        type            noSlip;
    }
    lowerWall
    {
        type            noSlip;
    }
    frontAndBack
    {
        type            empty;
    }
}