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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41359

Title: Flow evolution of an internal solitary wave generated by gravity collapse
Authors: Chih-Min Hsieh;Robert R. Hwang;John R.-C. Hsu;Ming-Hung Cheng
Contributors: 國立臺灣海洋大學:系統工程暨造船學系
Keywords: Internal solitary wave (ISW);Flow evolution;Numerical simulation;Finite volume method;Step depth;Vorticity
Date: 2014-10
Issue Date: 2017-02-14T08:30:24Z
Publisher: Applied Ocean Research
Abstract: Abstract:Numerical simulations are performed to investigate the flow evolution of a depression ISW generated by gravity collapse in a fluid system with a density pycnocline. A finite volume based Cartesian grid method is adopted to directly resolve the Navier–Stokes equations and the general mass continuity equation. Results of the numerical computation are validated by comparing with that of laboratory experiment. Numerical results reveal the initial vortex remains identical for the same step depth but the decrease in its strength is significant as the depth of upper layer increases. However, step depth influences the vertical structure of the initial vortex more than the upper/lower layer depth ratio does on wave generation.
Relation: 48,pp.277-291
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41359
Appears in Collections:[系統工程暨造船學系] 期刊論文

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