eprintid: 16663
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/66/63
datestamp: 2023-12-19 03:23:11
lastmod: 2023-12-19 03:23:11
status_changed: 2023-12-19 03:06:40
type: article
metadata_visibility: show
creators_name: Pereira, E.J.
creators_name: Teh, H.-M.
creators_name: Ma, Z.
title: Hydrodynamic Performance of Air-Filled Wave Attenuator for Wave Control: Experimental Study
ispublished: pub
keywords: Coastal engineering; Energy dissipation; Floating breakwaters; Hydrodynamics; Mooring; Mooring cables; Offshore oil well production; Water waves; Wave propagation, A; Air-filled wave attenuator; Hydrodynamics performance; Mooring force; Motion response; O 35; Test models; Wave attenuation; Wave heights; Wave reflections, Wave transmission
note: cited By 0
abstract: Numerous types of floating breakwaters have been proposed, tested and commercialized in the past decades. The majority of these breakwaters are made of solid bodies; hence, they are relatively bulky and are not readily to be rapidly installed at the targeted sites when immediate wave protection of the coastal and offshore facilities is needed. Furthermore, the application of these hard floating structures at the recreational beaches is rather unlikely due to potential deadly marine traffic collision. To overcome these problems, a flexible air-filled wave attenuator (AFWA) has been developed in the present study. This floating breakwater is made of flexible waterproof membrane materials. The main body consists of a rectangular air-filled prism and is ballasted by sandbags located around the floating module. The objective of this study is to evaluate the wave transmission, wave reflection, energy dissipation, motion responses and mooring forces of the AFWA under the random wave actions using physical modelling. The test model located in a 20 m long wave flume was subjected to a range of wave heights and periods. The wave profiles in the vicinity of the test model were measured using wave probes for determination of wave transmission, reflection and energy loss coefficients. The motion responses in terms of heave, surge and pitch, and wave forces acting on the mooring lines were measured using a motion tracking system and load cells, respectively. The experimental results reveal that the AFWA is effective in attenuating up to 95 in the incoming wave height and has low-wave-reflection properties, which is commendable for floating breakwaters. © 2022, Shanghai Jiao Tong University.
date: 2022
publisher: Shanghai Jiaotong University
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85133020176&doi=10.1007%2fs12204-022-2444-3&partnerID=40&md5=2b62566e6209de06f0a004d34fb8f5bf
id_number: 10.1007/s12204-022-2444-3
full_text_status: none
publication: Journal of Shanghai Jiaotong University (Science)
volume: 27
number: 3
pagerange: 316-325
refereed: TRUE
issn: 10071172
citation:   Pereira, E.J. and Teh, H.-M. and Ma, Z.  (2022) Hydrodynamic Performance of Air-Filled Wave Attenuator for Wave Control: Experimental Study.  Journal of Shanghai Jiaotong University (Science), 27 (3).  pp. 316-325.  ISSN 10071172