Reflection of irregular waves from perforated-wall caisson breakwaters SCIE SCOPUS

Cited 41 time in WEB OF SCIENCE Cited 53 time in Scopus
Title
Reflection of irregular waves from perforated-wall caisson breakwaters
Author(s)
Suh, KD; Choi, JC; Kim, BH; Park, WS; Lee, KS
KIOST Author(s)
Park, Woo Sun(박우선)
Publication Year
2001-12
Abstract
An analytical model has been developed that predicts the reflection of irregular waves normally incident upon a perforated-wall caisson breakwater. To examine the predictability of the developed model, laboratory experiments have been conducted for the reflection of irregular waves of various significant wave heights and periods impinging upon breakwaters having various wave chamber widths. For frequency-averaged reflection coefficients, though the overall agreement is fairly good between measurement and calculation, the model somewhat over-predicts the reflection coefficients at larger values, and under-predicts at smaller values. The model also underestimates the energy loss coefficients as wave reflection becomes larger. These differences occur because the model neglects the evanescent waves near the break-water, which increase the energy loss at the perforated wall. The frequency-averaged reflection coefficient shows a minimum when the wave chamber width is approximately 0.2 times the significant wavelength, and it decreases with increasing wave steepness. Finally, it is shown that the reflection of irregular waves from a perforated-wall caisson breakwater depends on the wave frequency, so that the reflected wave spectrum shows a frequency dependent oscillatory behavior. (C) 2001 Elsevier Science B.V. All rights reserved.
ISSN
0378-3839
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5834
DOI
10.1016/S0378-3839(01)00028-X
Bibliographic Citation
COASTAL ENGINEERING, v.44, no.2, pp.141 - 151, 2001
Publisher
ELSEVIER SCIENCE BV
Subject
VERTICAL CYLINDERS; SCATTERING
Keywords
breakwaters; caissons; irregular waves; laboratory tests; perforated structures; water waves; wave reflection
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Development of harbor structures,Analysis of harbor structures,Design of harbor structures,항만구조물개발,항만구조물해석,항만구조물설계

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