Dissipation of Wave Energy in Perforated-Permeable Breakwaters

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簡歷

基本資料

Project title

Code/計畫編號

NSC89-2611-E019-060

Translated Name/計畫中文名

開孔型透水防波堤消能效果之研究

Funding Organization/主管機關

National Science and Technology Council

Co-Investigator(s)/共同執行人

曹登皓

Department/Unit

Department of Harbor and River Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=547372

Year

2000

Start date/計畫起

01-08-2000

Expected Completion/計畫迄

31-07-2001

Co-Investigator(s)

Deng-How Tsaur

Bugetid/研究經費

206千元

ResearchField/研究領域

土木水利工程

本文是探討波浪通過在一定水深的海域裡，設置雙列相互平行，分別於海面及海底設有透水薄板結構物，而中間開孔 (2a)，沒水深度為 d，其波浪反射率及透過率之情形。在結構物厚度遠小於入射波波長時，可將結構物視為薄板結構物，因此可以應用 Yu(1995)所提出之薄板透水邊界條件，並利用特徵函數展開法及選點法建構聯立方程式，計算出不同透水牆參數對開孔型透水薄板防波堤之反射率及透過率。The main purpose of this paper is to analyze the wave transmission in two parallel vertical barriers with small gaps on water waves. The perforated-permeable barriers extend from the sea bottom with a slit some distance from the water surface. The barrier has a silt of 2a, which is situated at mean submergence d below the water surface at a finite depth. We applied a boundary condition on the barrier that assumes that difference in pressure across the barrier is proportional to the local velocity of the blow through the barrier (Yu, 1995). A collocation method of matched eigenfunction expansions on the wave scattering problem is formulated. The transmission coefficient of perforated permeable thin barriers are presented with different porous-effect parameter.

Keyword(s)

消波
開孔透水結構
防波堤
Dissipation of wave
Perforated Permeable
Breakwater

DSpace CRIS

Dissipation of Wave Energy in Perforated-Permeable Breakwaters

基本資料

Description