ATTENUATION OF WAVE ENERGY BY DOUBLE CHAMBERED BREAKWATERS
The hydrodynamic performance of a double chambered breakwater system formed by two wave screens placed on the seaward side of an impermeable vertical wall is investigated in detail through an experimental program. The wave screens are made up of a series of horizontally placed circular elements at constant spacing so as to form horizontal slots of required porosity. The experimental model consists of an impermeable vertical wall on the leeside of screen 1 and screen 2 with porosities of 23.1% and 9.1%, respectively. The model was subjected to regular waves with normal wave incidence. The change in reflection characteristics of the vertical wall as well as the dynamic pressures on it due to the presence and absence of wave screens are studied. The chamber oscillations are also measured and reported. In addition, efforts have been made to investigate the effect of the depth of submergence of the seaward side wave screen on the reflection characteristics of the wall. For this purpose three different relative depth of submergence (ds/d=0.25, 0.50, 0.75) were adopted. The details of the experimental set-up, procedure, results and discussion are presented in this paper.
slotted wave screen reflection coefficient chamber oscillation dynamic pressure relative depth of submergence
C Krishnakumar V Sundar S A Sannasiraj
Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai India
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
1311-1315
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）