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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40053

Title: NUMERICAL STUDIES OF BATHYMETRY EFFECTS ON WAVES DEFORMATION USING SHALLOW WATER EQUATION
Authors: Wei-Chun Wu
Shin-Jye Liang
Ying-Chih Chen
Yi-Ting Jheng
Contributors: 國立臺灣海洋大學:海洋環境資訊學系
Keywords: harmonics generation
shollow water equation
space-time least-squares finite-element method
nonlinearity
Date: 2011-12
Issue Date: 2017-01-12T07:33:41Z
Publisher: 海洋工程學刊
Abstract: Abstract: A space-time least-squares finite-element method is developed to solve the shollow water equation (SWE) which models the nonlinear long waves propagation. We use a regular propagating long wave in a constant slope bottom channel to verify accuracy of the model. Computed results agreed well with the exact solution. We then model a regular propagating long wave in a stepped bottom channel to demonstrate the bathymetry effects on wave deformations. Computed results show salient features of wave evolution, such as shoaling, wave reflection and decomposition. Spectrum analysis shows when the height of the step increases, the nonlinearity becomes significant, and high harmonics are generated.
Relation: 11(2)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40053
Appears in Collections:[海洋環境資訊系] 期刊論文

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