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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50686

Title: Hindcasting nearshore wind waves using a FEM code for SWAN
Authors: Tai-Wen Hsu
Shan-Hwei Ou
Jian-Ming Liau
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: Wind waves
SWAN
Finite Element Method
Fractional step method
Flux-Corrected
Transport algorithm
Date: 2005-01
Issue Date: 2018-10-22T01:37:05Z
Publisher: Coastal Engineering
Abstract: Abstract: An improved SWAN model using the Finite Element Method (FEM) was developed for wind waves simulations in both large-scale oceanic deep water regions and small-scale shallow water regions. The model employs a Taylor–Galerkin finite element technique for the discretization of the modeled area, which makes it flexible to represent bottom topography and irregular boundaries. The fractional step numerical scheme was adopted to split the wave action balance equation into three one-dimensional space equations, which can be solved efficiently by one-dimensional algorithms. The Flux-Corrected Transport method was also applied to circumvent the steep-gradients of the action density in the frequency space. The FEM code with unstructured grids improves the numerical schemes in the original SWAN to maintain computational efficiency at the operational stage. A simulation of wind wave activities for the monsoon and the 2000 Typhoon Bilis were performed using the FEM and SWAN models. The simulated results were compared with field observations in order to verify the suitability of the method.
Relation: 52(2) pp.177-195
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50686
Appears in Collections:[河海工程學系] 期刊論文

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