Computation of discrete transparent boundary conditions for the 2D Helmholtz equation:
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Bibliographische Detailangaben
Beteilige Person: Schmidt, Frank 1959- (VerfasserIn)
Format: Buch
Sprache:Englisch
Veröffentlicht: Berlin Konrad-Zuse-Zentrum für Informationstechnik 1997
Schriftenreihe:Preprint SC / Konrad-Zuse-Zentrum für Informationstechnik Berlin 1997,64
Schlagwörter:
Abstract:Abstract: "We present a family of nonlocal transparent boundary conditions for the 2D Helmholtz equation. The whole domain, on which the Helmholtz equation is defined, is decomposed into an interior and an exterior domain. The corresponding interior Helmholtz problem is formulated as a variational problem in standard manner, representing a boundary value problem, whereas the exterior problem is posed as an initial value problem in the radial variable. This problem is then solved approximately by means of the Laplace transformation. The derived boundary conditions are asymptotically correct, model inhomogeneous exterior domains and are simple to implement."
Umfang:15 S. Ill., graph. Darst.