Hi,

I am thinking on introducing multigrid algorithm on unstructured mesh Navier Stokes code, and basically I would need some specific bibliography about the subject, with deep covering of:

- Creation of coarse grids from initial unstructured grid

- Extrapolation and interpolation methods

Any suggest? I am grateful in advance for your help,

Ulises

There is a good reference to multigrid on unstructured grid.

"Multigrid Techniques for Unstructured Meshes", D.J.Mavriplis ICASE Report No. 95-27

This is a 60-page lecture note (at VKI), and would contain everything you want to know.