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On monotonicity of CABARET scheme approximating the multidimensional scalar conservation law
V. V. Ostapenko, T. V. Protopopova Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences,
Novosibirsk, Russia
Abstract:
The monotonicity of the two-layer with respect to time CABARET scheme approximating the multidimensional scalar conservation law is analyzed. There is proposed a modification of this scheme. This
modification of the CABARET scheme retains the monotonicity of the one-dimensional difference solutions
in the linear approximation, and, as a result, it provides an increased smoothness during the calculation of
the multidimensional discontinuous solutions. The results of test calculations are given. They illustrate the
advantages of the modified scheme.
Key words:
CABARET difference scheme, multidimensional scalar conservation law, monotonicity property.
Received: 10.06.2019 Revised: 02.02.2020 Accepted: 16.07.2020
Citation:
V. V. Ostapenko, T. V. Protopopova, “On monotonicity of CABARET scheme approximating the multidimensional scalar conservation law”, Sib. Zh. Vychisl. Mat., 23:4 (2020), 431–440; Num. Anal. Appl., 13:4 (2020), 360–367
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https://www.mathnet.ru/eng/sjvm758 https://www.mathnet.ru/eng/sjvm/v23/i4/p431
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Abstract page: | 124 | Full-text PDF : | 29 | References: | 26 | First page: | 9 |
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