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Scattering of irregular waves by vertical cylinders

Cited 13 time in Web of Science Cited 0 time in Scopus
Authors
Park, Woo Sun; Kim, Bum Hyoung; Suh, Kyung Doug; Lee, Kil Seong
Issue Date
2000
Publisher
World Scientific
Citation
Coastal Engineering Journal, 42: 253-271
Keywords
Analytical modelsbreakwaterscylindersirregular waveswave scattering
Description
author's final version
Abstract
An analytical model has been developed that can predict the scattering of irregular waves normally incident upon an array of vertical cylinders. To examine the predictability of the developed model, laboratory experiments have been made for the reflection and transmission of irregular waves from arrays of circular cylinders with various diameters and gap widths. Though the overall agreement between measurement and calculation is fairly good, the model tends to over- and under-predict the reflection and transmission coefficients, respectively, as the gap width decreases. The model also underestimates the energy loss coefficients for small gap widths because it neglects the evanescent waves near the cylinders. The peaks of the measured spectra of the reflected and transmitted waves slightly shift towards higher frequencies compared with that of the incident wave spectrum probably because of the generation of shorter period waves due to the interference of the cylinders. Both model and experimental data show that the wave reflection and transmission become larger and smaller, respectively, as the wave steepness increases, which is a desirable feature of the cylinder breakwaters.
Language
English
URI
https://hdl.handle.net/10371/67664
DOI
https://doi.org/10.1142/S0578563400000122
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Civil & Environmental Engineering (건설환경공학부)Journal Papers (저널논문_건설환경공학부)
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