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On the Calculation of Irregular Wave Reflection from Perforated-Wall Caisson Breakwaters Using a Regular Wave Model  

서경덕 (서울대학교 지구환경시스템공학부 및 해양시스템공학연구소)
손상영 (현대건설주식회사 기술연구소 토목기술부)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.15, no.1, 2003 , pp. 11-20 More about this Journal
Abstract
In this paper we examine several methods tor calculating the reflection of irregular waves from a perforated-wall caisson breakwater using a regular wave model. The first method is to approximate the irregular waves as a regular wave whose height and period are the same as the root-mean-squared wave height and significant wave period, respectively, of the irregular waves. The second is to use the regular wave model, repeatedly, for each frequency component of the irregular wave spectrum. The wave period is determined according to the frequency of the component wave, and the root-mean-squared wave height is used for all the frequencies. The third method is the same as the second one except that the wave height corresponding to the energy of each component wave is used. Comparison with experimental data from previous authors shows the second method is the most adequate, giving reasonable agreement in both frequency-averaged reflection coefficients and reflected wave spectra.
Keywords
irregular waves; laboratory tests; perforated-wall caisson breakwaters; regular wave models; water waves; wave reflection;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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