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Keldysh Institute preprints, 2009, 080, 20 pages (Mi ipmp351)  

Transparent boundary conditions for the wave equation in the square domain

A. A. Vinnichenko, N. A. Zaitsev


Abstract: The preprint is devoted to constructing of Transparent Boundary Conditions (TBC) for the wave equation in the square domain. The idea of the method consists in reducing the problem in a domain with non-smooth boundary to the problem with infinitely smooth boundary. It uses an auxiliary region, partly overlapping with the original area — “area of interest”. In the auxiliary field calculations are carried out in the space of Fourier coefficients, which significantly reduces the computational cost of the auxiliary problem. Sofronovs Transparent Boundary Conditions [6] are put on the outside, circular, boundary of the auxiliary domain. Results of test calculations to demonstrate the accuracy and stability of the proposed method are presented.

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Document Type: Preprint

Citation: A. A. Vinnichenko, N. A. Zaitsev, “Transparent boundary conditions for the wave equation in the square domain”, Keldysh Institute preprints, 2009, 080, 20 pp.

Citation in format AMSBIB
\Bibitem{VinZai09}
\by A.~A.~Vinnichenko, N.~A.~Zaitsev
\paper Transparent boundary conditions for the wave equation in the square domain
\jour Keldysh Institute preprints
\yr 2009
\papernumber 080
\totalpages 20
\mathnet{http://mi.mathnet.ru/ipmp351}


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