Approximate factorization for a viscous wave equation.

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Titel: Approximate factorization for a viscous wave equation.
Autoren: Karaa, Samir
Quelle: Computing; Sep2010, Vol. 89 Issue 3/4, p199-215, 17p, 3 Charts, 1 Graph
Schlagwörter: APPROXIMATION theory, LINEAR systems, WAVE equation, THEORY of wave motion, FOURIER analysis
Abstract: A general procedure to construct ADI methods for multidimensional problems was originated by Beam and Warming using the method of approximate factorization. In this paper, we extend the method of approximate factorization to solve a viscous wave equation. The method can be combined with any implicit linear multistep method for the time integration of the wave equation. The stability of the factored schemes and their underlying schemes is analyzed based on a discrete Fourier analysis and the energy method. Convergence proofs are presented and numerical results supporting our analysis are provided. [ABSTRACT FROM AUTHOR]
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Datenbank: Complementary Index
Beschreibung
Abstract:A general procedure to construct ADI methods for multidimensional problems was originated by Beam and Warming using the method of approximate factorization. In this paper, we extend the method of approximate factorization to solve a viscous wave equation. The method can be combined with any implicit linear multistep method for the time integration of the wave equation. The stability of the factored schemes and their underlying schemes is analyzed based on a discrete Fourier analysis and the energy method. Convergence proofs are presented and numerical results supporting our analysis are provided. [ABSTRACT FROM AUTHOR]
ISSN:0010485X
DOI:10.1007/s00607-010-0102-3