[BGM28]

Hi,

I'm having troubles using the BC Fan condition to simulate a pressure jump with cyclic patches. As you can see the BC is applying a non-uniform jump and the velocity vectors are spinning around the BC. I need that pressure jump drive the entire flow at a positive Y velocity in an uniform manner using the curve's performance fan. I already changed the signs on the curve and the problems still appears even with a constant value pressure the flow is spinning. I don't know what's my problem.
If anyone can help me I would appreciate it. If you need more info don't dude to ask


The p-rgh surface is the BC cyclic Fan



This is my createBaffles script:

internalFacesOnly true;

// Baffles to create.
baffles
{
    cyclicFaces
    {
        //- Select faces and orientation through a searchableSurface
        type        searchableSurface;
        surface     rotatedBox;

        origin    (0.150833 0.0201268 0.00700523); // P1
        e1         (0 0 -0.01472361);              // (P1 P3)
        e2         (0 -2e-5 0);                    //
        e3         (-0.002721 0 0);                // P1 P2)
        span       (0.01472361 2e-5 0.002721);     // (|e1|, |e2|, |e3|)

        patchPairs
        {
            type            cyclic;

            // Optional override of added patchfields
            patchFields
            {
                p_rgh
                {
                    type            fan;
                    patchType       cyclic;
                    jumpTable       polynomial
                    2((-32.959 0)(4.8621 1));
                    uniformJump true;
                    value uniform -32.959;
                    outOfBounds     clamp;
                    jump            uniform -32.959 ;
                }
            }
        }
    }
}

This is my p_rgh script part related to the FAN with its curve's performance

    cyclicFaces_master
    {
        type            fan;
        patchType       cyclic;
        jump            uniform 0;
        value           uniform -32.959;
        jumpTable       polynomial
            2
            (
            (-32.959 0)
            (4.8621 1)
            )
            ;
        uniformJump     true;
    }
    cyclicFaces_slave
    {
        type            fan;
        patchType       cyclic;
        value           uniform 0;
        uniformJump     true;
    }