Abstract
The application of high order absorbing boundary conditions in numerical simulations of wave propagation will generally result in good absorption of outgoing waves. However, high-order absorbing boundary conditions usually have complicated expressions and involve high order derivatives which can be quite troublesome in their implementation. A technique called the multi-absorbing boundary condition is presented. This technique involves the implementation of absorbing boundary conditions in such a way that high order derivatives are not involved. The application of the proposed method to Higdon's (1987) and Lindman's (1975) boundary conditions is considered by way of illustration.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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