[philippose]

Hi,
Thanks once again for clearing up things for me! The basic concepts are crystal clear now... While scouring the net for similar topics, I found a paper written by you (Hrv) titled "Automatic mesh motion for the unstructured finite volume method".... shall look through that too for closure.

I guess I need to start looking around for free hex meshing software if I need to simulate large scale motion which would not be feasible via pure mesh deformation without topological changes.

Anyway, for starters I can live with pure mesh motion because I am currently working with a valve which has a small motion range which can be covered by mesh motion.

The only unanswered questions were regarding the modified solvers, and whether it would be useful to make it available to others.... I would love to contribute something back to the openFOAM community.

Philippose