http://scholars.ntou.edu.tw/handle/123456789/905
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 |
Keywords: | finite element method;water waves;wave propagation;boundary conditions;shores | Issue Date: | Dec-2003 | Journal Volume: | 129 | Journal Issue: | 12 | Start page/Pages: | 1429-1438 | Source: | Journal of Engineering Mechanics | 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 |
URI: | http://scholars.ntou.edu.tw/handle/123456789/905 | ISSN: | 0733-9399 | DOI: | 10.1061/(asce)0733-9399(2003)129:12(1429) |
Appears in Collections: | 河海工程學系 |
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