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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41354

Title: A Case Study on Typhoon Wave-induced Hydrodynamic Behaviors Leading to Seawall Damages with the SPH Method
Authors: Da-Wei Chen;Shiaw-Yih Tzang;Chih-Min Hsieh;Robert Rong-Jiann Hwang;Neng-Yao Zeng
Contributors: 國立臺灣海洋大學:系統工程暨造船學系
Keywords: Typhoon;Overtopping;Seawall damages;Smoothed Particle Hydrodynamics
Date: 2014
Issue Date: 2017-02-14T08:24:02Z
Publisher: Procedia Engineering
Abstract: Abstract:In this study, a Smoothed Particle Hydrodynamics (SPH) model was applied to simulate the hydrodynamic behaviors of wave overtopping for evaluating typhoon wave-induced damages on seawalls at two sites in Keelung, Taiwan. The instantaneous throw velocity (uz), maximum horizontal throw speed (ux), down-falling composite velocity of overtopping flow (vd), and influenced distance (L) of wave overtopping have been estimated. The simulated overtopping throw speed (uz) over seawalls at both sites are about 2.0 to 3.5 times of the inshore wave celerity at the toe of seawall. Higher seawall and lower waves being inducing the smaller overtopping horizontal throw speeds (ux) could effectively decrease the influenced distance (L) on top of the seawall close to the parapets by down-falling overtopping water while lower seawall and higher waves increase the influenced distance (L). The down-falling waters at both different crests before landing on top of the seawalls have similar velocities so that the overtopping discharges and influenced distances become the primary safety factors for seawall design criteria.
Relation: 79,pp.119-124
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41354
Appears in Collections:[系統工程暨造船學系] 期刊論文

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