[semo]

Happy new year to everyone.

I am trying to simulate a moving body using overset functionality.

I generated background mesh and moving body mesh in Salome and exported them as UNV files. Background mesh has inlet, outlet and wall group names. Moving body has a hole (wall) and interface group names. Mesh is generated as 2D meaning it is only one element deep in z direction.

Moving body is imported and merged with the background mesh as cellzone which is defined as overset.

When I run this using overpimpledymfoam solver even with no motion, it stops with error "changed from hole to calculated but there is no donor".

I tried with different mesh setups but it eventually stops with this error. Sometimes at the first iteration, sometimes after few iterations.

Any idea why this might be happening?