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Tytuł artykułu

Boundary element modelling of wave diffraction by interaction with wave-offshore structure and dredged region

Autorzy
Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The purpose of this study is to estimate the wave height at the front face of breakwater (Refracted breakwater and Straight breakwater), when dredging like the submarine pit is performed in the distant offshore from outer breakwater. The wave field of the problem is considered to be two dimensional planes and the configuration of the pit region is designated by a single horizontal long-rectangular system. The numerical approach uses the Green function based on the boundary integral approach. The results of the present numerical works are illustrated by applying the normal and inclined incidence. It is shown that in the case of normal incidence, the ratio of wave height reduction at the front face of both types of breakwaters is approximately more than 20% due to the effect of the submarine pit on the sea bed. Furthermore, regardless of the type of breakwater and the difference in incident wave angles, the ratio of wave height was shown to be reduced.
Rocznik
Tom
Strony
67--71
Opis fizyczny
Bibliogr. 12 poz., rys., tab.
Twórcy
autor
autor
  • Department of Civil & Environmental Engineering, Chung-Ang University, South Korea. Donjak Gu, Heukseok-Dong 221, Seoul, South Korea Phone: +82-2-820-5253, fax: +82-2-820-5253,, soungdoug@hotmail.com
Bibliografia
  • 1. HILAY N.: Water waves over a rectangular channel though a reef. Journal of Waterways and Harbor Division, ASCE, 95(1):77-94, 1969.
  • 2. Kim S.D.: Multidirectional random wave diffraction in a harbor with partial-reflecting boundary by placing submarine pit. Ph.D. Thesis, Chung-Ang University, South Korea, 2007.
  • 3. KIRBY J.T. and DALRYMPLE R.A.: Propagation of obliquely incident water waves over a Trench. Journal of Fluid Mechanics, 133: 47-63, 1983.
  • 4. KIRBY J.T., DALRYMPLE R.A. and SEO S.N.: Propagation of obliquely incident water waves over a trench. Part 2. Current flowing along the trench, Journal of Fluid Mechanics, 176: 95- 116, 1987.
  • 5. KOJI K. and MUTSUO O.: A study of wave height distribution along a breakwater with a corner. Report of the Port & Harbor Research Institute, 15(2): 55-88, 1976.
  • 6. LEE J.J. and AYER R.M.: Wave propagation over a rectangular trench. Journal of Fluid Mechanics, 110: 335-347, 1981.
  • 7. MCDOUGAL W.G., WILLIAMS A.N. and FURUKAWA K.: Multiple-pit breakwaters, Journal of Waterway. Port, Coastal and Ocean Engineering, ASCE, 122(1): 27-33, 1996.
  • 8. MILES J.W.: On surface wave diffraction by a trench. Journal of Fluid Mechanics, 115: 315-25, 1982.
  • 9. NEWMAN J.N.: Propagation of water waves over an infinite step. Journal of Fluid Mechanics, 23: 399-415, 1965.
  • 10. TING C.K.F. and RAICHLEN F.: Wave interaction with a rectangular trench. Journal of Waterway. Port, Coastal and Ocean Engineering, ASCE, 112, 454-460, 1986.
  • 11. WILLIAMS A.N.: Diffraction of long waves by rectangular pit. Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, 116(4): 459-469, 1990.
  • 12. WILLIAMS A.N. and VAZQUEZ J.H.: Wave interaction with a rectangular pit. Journal of Offshore Mechanics and Arctic Engineering, 113: 193-198, 1991.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWM4-0028-0096
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