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Preprints of the Keldysh Institute of Applied Mathematics, 2006, 084, 28 pp. (Mi ipmp632)  

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.
Document Type: Preprint
Language: Russian
Citation: G. P. Prokopov, “Control of entropy in algorithms and calculations of gas-dynamics flows”, Keldysh Institute preprints, 2006, 084, 28 pp.
Citation in format AMSBIB
\Bibitem{Pro06}
\by G.~P.~Prokopov
\paper Control of entropy in algorithms and calculations of gas-dynamics flows
\jour Keldysh Institute preprints
\yr 2006
\papernumber 084
\totalpages 28
\mathnet{http://mi.mathnet.ru/ipmp632}
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  • https://www.mathnet.ru/eng/ipmp/y2006/p84
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    Препринты Института прикладной математики им. М. В. Келдыша РАН
     
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