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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40037

Title: Numerical Study of Wind Effect on Green Island Wake
Authors: Shin-Jye Liang
Nan-Jung Kuo
Dong-Jiing Doong
Contributors: 國立臺灣海洋大學:海洋環境資訊學系
Keywords: wind effect
island wake
spatial-temporal scales
satellite imagery
Date: 2014
Issue Date: 2017-01-12T06:24:29Z
Abstract: Abstract: Wind effect on Kuroshio-induced island wake downstream the Green Island, Taiwan is studied using a depthaveraged shallow-water model. Seasonal monsoon effect on spatial-temporal scales, such as aspect ratio, dimensionless width, and Strouhal number as well as propagation speed of the vortices of Reynolds number 50 is studied. It is found that northeast monsoon has more pronounced effect in wake characteristics than southwest monsoon does, in terms of flow speed and recirculation zone, the aspect ratio, and dimensionless width. Vortices are pushed back close to the island with a smaller size of recirculation when Kuroshio flows against the northeast monsoon; Vortices are pushed farther downstream with a larger size of recirculation when Kuroshio flows in favor of the southwest monsoon. However, wind effect on temporal variation of island wake seems insignificant. The Strouhal number is between 0.116 and 0.125 from numerical simulations. This value is close to result of previous reports.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40037
Appears in Collections:[海洋環境資訊系] 演講及研討會

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