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Old   December 14, 2008, 16:50
Default Riemann solver
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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?

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Old   December 16, 2008, 05:04
Default Re: Riemann solver
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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)

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Old   December 17, 2008, 19:36
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In that case why bother using TVD I thought it was to minimise spurious oscillations near flow discontinuities.

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Old   July 7, 2009, 13:21
Nishant Kumar
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Nishu is on a distinguished road
Hi Shuo,

I am dealing with the same problem.
Were you able to figure it out? Reply me at
Nishu is offline   Reply With Quote


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