FV-FE hybrid schemes
 

Hello,

I have a very quick question.

What are the assets of using hybrid FV-FE methods. It seems to me it is for gaining accuracy on unstructured meshes. Am I wrong?

Thanks a lot in advance.

jojo

Re: FV-FE hybrid schemes
 

both method can be used on unstructured meshes. both methods allow the use of high order methods but the FV is well suited (very accurate) for structured ones. FE (galerkin methods) is a more general discretization tecnique and its accuracy is nearly indipendent by the mesh so is very useful for complicated geometries but is very time-consuming.

Re: FV-FE hybrid schemes
 

Thanks a lot mar.

- jojo

Re: FV-FE hybrid schemes
 

FV-FE schemes are good for convection-diffusion equations. They combine the technology of upwind schemes for convection terms with galerkin discretization for diffusive terms, exploiting the advantages of both. For greater details see

M. Feistauer, J. Felcman, I. Straskraba: Mathematical and Computational Methods for Compressible Flow. Clarendon Press, Oxford, 2003 (550 pages, ISBN 0-19-850588-4).

Re: FV-FE hybrid schemes
 

I ll try to catch this book.

Thanks!

- jojo