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http://dx.doi.org/10.9765/KSCOE.2016.28.4.240

Distribution of Wave Forces at Points on a Vertical Structure of Semi-Infinite Breakwater Considering Diffraction  

Jung, Jae-Sang (Rural Research Institute, Korea Rural Community Corporation)
Lee, Changhoon (Department of Civil and Environmental Engineering, Sejong University)
Cho, Yong-Sik (Department of Civil and Environmental Engineering, Hanyang University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.28, no.4, 2016 , pp. 240-249 More about this Journal
Abstract
In this study, we investigated wave force distribution at points on a vertical structure of semi-infinite breakwater considering diffraction. Wave forces of monochromatic and random waves on a vertical structure are studied considering diffractions in front and lee side of the breakwater for non-breaking wave condition. We selected width of breakwater are 0 for reference condition. In monochromatic wave case, relative wave force becomes 0 on the head of the breakwater by acting incident wave force and diffracting wave force simultaneously and oscillating patterns of relative wave force occurs based on 1.0 as distance from the head increases. Relative wave force of monochromatic waves decreases as incident wave angle increases. Relative wave force of random waves is defined by using ratio of root mean square and wave force spectrum in this study. The case considering random phase of each wave components are compared to the case which don't consider random phase and both results are almost similar. Relative wave force of random waves is also 0 near the head of the breakwater likewise monochromatic wave. Oscillating pattern of relative wave force of random waves becomes relatively weaker for composition of each wave components as distance from the head increases.
Keywords
diffraction; semi-infinite breakwater; wave force distribution; monochromatic wave; random waves;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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