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Preprints of the Keldysh Institute of Applied Mathematics, 2006, 084, 28 pp.
(Mi ipmp632)
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Control of entropy in algorithms and calculations of gas-dynamics flows
G. P. Prokopov
Abstract:
Based on one recently published approach, an analytical investigation of entropy behaviour in process of numerical integration of gas-dynamics equations is implemented. It confirms an existence of discontinuous solutions that similar to rarefaction shock-wave in numerical calculations. So, the postulate of non-increasing entropy is disturbed. Some simple methods to control of entropy in gas-dynamic flows and other known numerical methods are suggested.
Citation:
G. P. Prokopov, “Control of entropy in algorithms and calculations of gas-dynamics flows”, Keldysh Institute preprints, 2006, 084, 28 pp.
Linking options:
https://www.mathnet.ru/eng/ipmp632 https://www.mathnet.ru/eng/ipmp/y2006/p84
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Statistics & downloads: |
Abstract page: | 79 | Full-text PDF : | 6 |
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