Abstract

The finite difference method is used to approximate the solutions of Berkhoff s equation for water radiation and scattering in an unbounded domain. To incorporate the exact far field radiation condition in the numerical scheme an operational method has been developed. The determination of Hemholz discrete operator spectrum over a structured domain allows the design of a non-local perfectly absorbent boundary condition in the discrete medium. Numerical tests validate these conclusions.

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Published on 01/10/98
Accepted on 01/10/98
Submitted on 01/10/98

Volume 14, Issue 4, 1998
Licence: CC BY-NC-SA license

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