English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26987/38787
Visitors : 2290643      Online Users : 33
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50314

Title: Transformation of mode-2 internal solitary wave over a pseudo slope-shelf
Authors: Ming-Hung Cheng
Chih-Min Hsieh
John R.-C. Hsu
Robert R. Hwang
Contributors: 國立臺灣海洋大學:系統工程暨造船學系
Date: 2017-09
Issue Date: 2018-10-02T08:30:40Z
Publisher: AIP Advances
Abstract: Abstract: Numerical simulations are performed to investigate the effect of wave amplitude in a numerical wave tank on the evolution of a convex mode-2 internal solitary wave (ISW) propagating over a pseudo slope-shelf. A finite volume method based on a Cartesian grid system is adopted to solve the Navier-Stokes equations using Improved Delayed Detached Eddy Simulation model for the turbulent closure. Numerical results reveal three types of waveform during wave generation on the flat bottom: (1) pseudo vortex shedding in the case of very large initial amplitude; (2) PacMan phenomenon in large amplitude; and (3) smooth mode-2 ISW for small amplitude. During wave propagation on the plateau, the first type of waveform induces a quasi-elevated mode-1 ISW; the second generates chaotic internal waves with significant reduction in amplitude; while the third renders a slightly deformed mode-2 ISW across the plateau. Moreover, the decrease in the magnitude of leading trough is more intense than that in the leading crest due to strong wave-obstacle interaction in the case of very large initial wave amplitude.
Relation: 7(9)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50314
Appears in Collections:[系統工程暨造船學系] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML17View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback