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. 
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. 
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.

Re: entropy fix for Riemann problem
Hi,
What exactly do you mean by small shocks and high shocks ? and what is the 1D problem are you looking at? 
All times are GMT 4. The time now is 00:36. 