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-   -   TVD scheme in unstructured finite volume discretization (http://www.cfd-online.com/Forums/main/80933-tvd-scheme-unstructured-finite-volume-discretization.html)

abcdef123 October 11, 2010 14:16

TVD scheme in unstructured finite volume discretization
 
Hi,

I am trying to extend the TVD scheme to an unstructured finite volume discretization. The problem is determining r for this scheme in the unstructured mesh domain, which is defined as the local ratio of upstream gradient to downstream gradient (from Coputational Fluid Dynamics: The FVM by Versteeg and Malalasekera). Any help with this would be greatly appreciated.

Thanks in advance.

ganesh October 11, 2010 17:05

Dear abcdef,

Although not directly relevant to your question, please take a look at Jasak's paper on developing higher order NVD schemes for unstructured meshes. These are related to TVD, and the paper talks about developing Gamma scheme, which wroks fine for a range of problems on arbitrary polgonal meshes. You can google the paper, I don't recall the exact title.

Regards,

Ganesh

dokeun January 16, 2013 01:26

Now I'm reading 'TVD schemes for unstructred grids', M.S.Darwish, Int. J of Heat and mass transfer, 2003, 599-611
I just leave this message for someone else...


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