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Title: Second-order radiation boundary condition for water wave simulation with large angle incidence
Authors: Tai-Wen Hsu
Yuan-Jyh Lan
Ting-Kuei Tsay
Kuei-Pin Lin
Contributors: 國立臺灣海洋大學:河海工程學系
Date: 2003-12
Issue Date: 2019-01-10T02:34:40Z
Publisher: Journal of Engineering Mechanics- ASCE
Abstract: Abstract: A finite-element method FEM is used to simulate water wave propagation with large angle incidence at exterior boundaries. In this paper, the radiation boundary condition is expanded to a second-order approximation and a quadratic shape function is used in the FEM wave model. Cases used for verifications include wave scattering around a vertical cylinder and wave propagation over a submerged circular shoal with concentric contours. Numerical calculations based on this second-order radiation boundary condition are found to be in good agreement with theoretical and experimental results available. The numerical predictions show that this model has made a very good improvement over the first-order radiation boundary conditions for oblique wave incidence in coastal engineering.
Relation: 129(12)
Appears in Collections:[Department of Harbor and River Engineering] Periodical Articles

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