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entropy fix for Riemann problem

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Old   August 26, 2005, 21:04
Default entropy fix for Riemann problem
  #1
vivek kumar
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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.
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Old   August 27, 2005, 02:17
Default Re: entropy fix for Riemann problem
  #2
Munikrishna
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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.

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Old   August 28, 2005, 01:58
Default Re: entropy fix for Riemann problem
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vivek kumar
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hi, thanks for ur response. but i have experimented with vanleer .it is working well. please tell me how to fix my problem.
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Old   August 31, 2005, 07:47
Default Re: entropy fix for Riemann problem
  #4
B787
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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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