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-   -   entropy fix for Riemann problem (http://www.cfd-online.com/Forums/main/9779-entropy-fix-riemann-problem.html)

vivek kumar August 26, 2005 21:04

entropy fix for Riemann problem
 
HI, i am B.Tech 3rd yr student doing mechanical engg. in IIT

Guwahati. I made a code for Roe method in one dimension

using entropy fix from the book E.F.Toro Riemann solvers

and Numerical Methods for fluid dynamics. But this code

eventhough working for small shocks failed to capture High

shocks. Please, suggest me what should i do for high

shocks.

Munikrishna August 27, 2005 02:17

Re: entropy fix for Riemann problem
 
Hi Vivek,

Please use the Steger Warming and Van Leer's scheme to start with. Make sure that the results are fine and later experiment with Roe scheme.


vivek kumar August 28, 2005 01:58

Re: entropy fix for Riemann problem
 
hi, thanks for ur response. but i have experimented with vanleer .it is working well. please tell me how to fix my problem.

B787 August 31, 2005 07:47

Re: entropy fix for Riemann problem
 
Hi,

What exactly do you mean by small shocks and high shocks ? and what is the 1-D problem are you looking at?


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