eprintid: 3553
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/35/53
datestamp: 2023-11-09 15:51:48
lastmod: 2023-11-09 15:51:48
status_changed: 2023-11-09 15:47:05
type: article
metadata_visibility: show
creators_name: Teh, H.M.
creators_name: Venugopal, V.
title: Performance evaluation of a semicircular breakwater with truncated wave screens
ispublished: pub
keywords: Hydraulic performance; Hydrodynamic performance; Marine infrastructure; Semicircular breakwater; Wave force; Wave force coefficients; Wave reflections; Wave screens, Breakwaters; Energy dissipation; Porosity; Regression analysis; Wave propagation; Wave transmission, Coastal engineering, breakwater; coastal protection; energy dissipation; estimation method; hydrodynamics; numerical model; performance assessment; porosity; wave force; wave reflection
note: cited By 17
abstract: A semicircular breakwater model with rectangular perforations and with truncated wave screen(s) of different porosities has been developed in this study which could act as an anti-reflection wave barrier, providing wave protection to coastal and marine infrastructures. The hydrodynamic performance of the breakwater model is evaluated through wave measurements in a wave flume under irregular waves. The experiments are undertaken with three setups; (i) a wave screen is attached to the front curved wall of the semicircular breakwater and none at the rear wall, (ii) a wave screen is attached at the rear curved wall of the semicircular breakwater and none at the front wall and (iii) wave screens one each is attached to the front and rear walls of the semicircular breakwater. The wave surface elevations are measured at different locations upstream and downstream of the breakwater model and the coefficients of wave transmission, reflection and energy dissipation are determined. Wave climate in the vicinity of the breakwater and the horizontal wave force on the model are also measured and analysed. The results show that the semicircular breakwater with double screens of 25 porosity is the most viable design that offers reasonably good hydraulic performance as this acts as an energy dissipater rather than a wave reflector. Further, empirical models developed using a multi-regression method for estimation of reflection, transmission and energy loss coefficients as well as the normalised wave force coefficients, correlates well with the experimental data. © 2013 Elsevier Ltd.
date: 2013
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879901177&doi=10.1016%2fj.oceaneng.2013.05.035&partnerID=40&md5=64d1a32b29581910e215e97124fdfeef
id_number: 10.1016/j.oceaneng.2013.05.035
full_text_status: none
publication: Ocean Engineering
volume: 70
pagerange: 160-176
refereed: TRUE
issn: 00298018
citation:   Teh, H.M. and Venugopal, V.  (2013) Performance evaluation of a semicircular breakwater with truncated wave screens.  Ocean Engineering, 70.  pp. 160-176.  ISSN 00298018