Regarding the 3DEXPERIENCE Fluid Dynamics Engineer (FMK) role, I am working on a simulation for a Brazed Plate Heat Exchanger (BPHE). This product consists of multiple corrugated plates stacked and brazed together to form a single unit.

Due to the geometric nature of the stacked wavy plates, the fluid domain contains a significant number of "zero-thickness" regions at the points of curvature intersection. Despite applying Local Mesh Control in FMK, we are encountering two critical issues:

Mesh Leakage: The fluid mesh penetrates the solid mesh boundaries.

Incomplete Coverage: The fluid mesh fails to fully capture or "fill" the narrow regions where the curved surfaces intersect at near-zero thickness.

Could you please provide guidance or best practices on how to improve the mesh quality and ensure fluid domain integrity for this type of BPHE geometry?