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shuo December 14, 2008 17:50

Riemann solver
There are many approximate Riemann solvers for Godunov type schemes. Given the capability of modern computers, why not just stick to the exact iterative Riemann solver? Are there other issues concerned such as stability?


abouziar December 16, 2008 06:04

Re: Riemann solver
The exact Riemann's solver is more prefarable from a lot of points of v.. also from stability (you could find Prokopov articles and etc.), the main - the exact R.S. is a solution of the Fluid Structure Interaction problems, it is always stable, a problem - the exact R.S. for arbitrary state eq. (it is necessary to use numerecial integration for rarefaction wave)

Shuo December 17, 2008 20:36

Re: Riemann solver
In that case why bother using TVD I thought it was to minimise spurious oscillations near flow discontinuities.


Nishu July 7, 2009 13:21

Hi Shuo,

I am dealing with the same problem.
Were you able to figure it out? Reply me at

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