- Adding subMesh capabilities to momentumError and div FOs.
- A subMesh is created from cellZones to compute FOs.
- The operators (div, etc) are only calculated in the subMesh.
- Zero field is written in the non-subMesh cells.
- Optionally, halo cells can be added to the cellZones.
- New helper class to handle the subMesh creation and field mapping.
- TUT: add an example to