Changes between Version 25 and Version 26 of u/ehansen/buildcode
- Timestamp:
- 11/03/11 15:17:08 (13 years ago)
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u/ehansen/buildcode
v25 v26 149 149 Test 1 was also run with the HLLC solver. The density plot was made to compare it to the results of the exact solver. Notice that the HLLC solver actually does a better job of resolving the left rarefaction. The exact solution has a much more noticeable entropy "glitch". This is what we call that gap inside the left rarefaction. 150 150 151 Test 1 was also run with the Roe solver in two different ways. First as a basicRoe solver, and second with an entropy fix. This entropy fix is required for transonic rarefactions, which is the case for the left rarefaction in Test 1. You can see that without this entropy fix, the gap inside that left rarefaction is very large and completely inaccurate.151 Test 1 was also run with the Roe solver in two different ways. First as a "barebones" Roe solver, and second with an entropy fix. This entropy fix is required for transonic rarefactions, which is the case for the left rarefaction in Test 1. You can see that without this entropy fix, the gap inside that left rarefaction is very large and completely inaccurate. 152 152 153 153 For all the plots, the numerical results (points) are alongside the exact solution (line). … … 180 180 || [[Image(hllc_test1_density.png, width=500)]] || [[Image(test1_density.png, width=500)]] || 181 181 [[CollpasibleEnd]] 182 [[CollapsibleStart(Test 1 (Roe without entropy fix vs. Roe with entropy fix) ]]182 [[CollapsibleStart(Test 1 (Roe without entropy fix vs. Roe with entropy fix))]] 183 183 ||= Roe without entropy fix =||= Roe with entropy fix =|| 184 184 || [[Image(roe_nofix_test1_density.png, width=500)]] || [[Image(roe_withfix_test1_density.png, width=500)]] ||