Journal of Korean Port Research (한국항만학회지)
- Volume 8 Issue 2
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- Pages.67-77
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- 1994
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- 1225-0791(pISSN)
Effect of Wave Focusing Structures in Combined Waves and a Current
파랑과 흐름의 혼합하에서 파랑집적구조물의 영향
- Published : 1994.12.01
Abstract
A time-domain numerical model is developed to examine the performance of a wave energy focusing structure in combined waves and a current. With the current assumed to be slow and the structure fully submerged, the wave-current interaction problem is reduced to a wave scattering problem in a uniform current. The diffraction of incident waves around a narrow berm is considered. The shape of the berm is defined by a parabola, imitating that of an optical reflector. The energy focus is achieved by reflecting the incident waves through a predetermined focal point. Through the numerical simulations, the numerical model is shown to be effective in modeling the wave-current interaction problem, and the current speed and direction are shown to affect significantly the location, amplitude and sharpness of the focus.
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