[MNoCeZ]

Hello,

before posting this thread i searched for solutions in this forum and the web general, but without success.

Before describing the problem same informations about my investigated case.

Case

the case is a jet stream with a cross-section expansion to ensure detached eddies. At the inlet it was used a farfield with a fixed pressure and a velocity set to zero. At the outlet it was used an averaged fixed pressure. The velocity gets calculated by fluxCorrectedVelocity.

Mesh

the mesh was created with numeca's autogrid and then also converted with autogrid to an openfoam mesh.

Solver

the solver is rhoSimpleFoam. Convergence plot:



Problem

The Mesh has non-conformal Blocks which i set to cyclicAMI in the boundary file. For example:

cyclicAMI_patch_1
{
        nFaces 1200;
        startFace 22194240;
        type cyclicAMI;
        inGroups 1(cyclicAMI);
        matchTolerance 0.0001;
        neighbourPatch cyclicAMI_patch_2;        
        transform noOrdering;
}

The initial solution of the cyclicAMI_patch_1 for ervery needed quantitie was set to

cyclicAMI_patch_1   
{
     type            cyclicAMI;
     value           $internalField;
}

The problem is, that the pressure and the velocity has non-physical values at the cyclicAMI patches.

pressure:



velocity:




Is there an option to avoid these non-physical values at the cyclicAMI patches?