High-Order Non-Reflective Boundary Conditions for Disperive Wave Problems in Stratified Media

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Neta, Beny
Joolen, Vince Van
Givoli, Dan
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2000
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2000
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Abstract
Problems of linear time-dependent dispersive waves in an unbounded domain are con- sidered. The infinite domain is truncated via an artificial boundary B. A high-order Non-Reflecting Boundary Condition (NRBC) is imposed on B, and the problem is solved by a Finite Difference (FD) scheme in the finite domain. The sequence of NRBCs proposed by Higdon is used. However, in contrast to the original low-order implementation, a new scheme is devised which allows the easy use of a Higdon-type NRBC of any desired order. In addition, the problem is considered for a stratified media. The performance of the scheme is demonstrated via numerical example.
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Proceedings Sixth International Conference on Computer Modelling and Experimental Measurements of Seas and Coastal Regions, Cadiz, Spain, 23-25 June 2003, (C.A. Brebbia, D. Almorza and F. Lo ́pez− Aguayo, eds), pp. 73-82.
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Applied Mathematics
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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