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Prediction of Wave Force on a Long Structure of Semi-infinite Breakwater Type Considering Diffraction
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 Title & Authors
Prediction of Wave Force on a Long Structure of Semi-infinite Breakwater Type Considering Diffraction
Jung, Jae-Sang; Lee, Changhoon; Cho, Yong-Sik;
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 Abstract
In this study, the wave force distribution acting on a semi-infinite and vertical-type long structure is investigated considering diffraction. An analytical solution of the wave force acting on long structures is also suggested in this study. The wave forces on long structures are evaluated for monochromatic, uni-directional random, and multi-directional random waves. Diffraction effects in front of the breakwater and on the lee side of the breakwater are considered. The wave force on a long structure becomes zero when the relative length of the breakwater (1/L) is zero. The diffraction effects are relatively strong when the relative length of the breakwater is less than 1.0, and the wave forces decrease greatly for long structure when the relative length of the breakwater is larger than 0.5. Therefore, it is necessary to consider diffraction effects when the relative length of the breakwater is less than 1.0, and the relative length of the breakwater must be at least 0.5 in order to obtain a reduction of wave force on long structures.
 Keywords
diffraction;semi-infinite breakwater;long structure;random waves;
 Language
Korean
 Cited by
1.
회절을 고려한 반무한방파제 형식의 직립구조물에 작용하는 지점별 파력 분포,정재상;이창훈;조용식;

한국해안해양공학회논문집, 2016. vol.28. 4, pp.240-249 crossref(new window)
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Proposal of Sliding Stability Assessment Formulas for an Interlocking Caisson Breakwater under Wave Forces, Journal of Korean Society of Coastal and Ocean Engineers, 2017, 29, 2, 77  crossref(new windwow)
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Distribution of Wave Forces at Points on a Vertical Structure of Semi-Infinite Breakwater Considering Diffraction, Journal of Korean Society of Coastal and Ocean Engineers, 2016, 28, 4, 240  crossref(new windwow)
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