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Development of a Simplified Treatment Technique of Partial Wave Reflection and Transmission for Mild-Slope Wave Model  

Chun Je-Ho (Institute of Construction and Environmental Research, Handong Global University)
Ahn Kyung-Mo (School of Spatial Environment System Engineering, Handong Global University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.18, no.1, 2006 , pp. 84-96 More about this Journal
Abstract
This paper presents a simplified numerical method that can be used to incorporate the partial reflection and transmission of water waves in the hyperbolic mild-slope equation. For given reflection and transmission coefficients, wave fields around a porous breakwater including reflection, transmission, and diffraction can be simulated accurately. For the verification of the proposed method, numerical experiments have been carried out and compared with analytic solutions given by Yu(1995) and McIver(1999). The proposed method is easy to implement and is computationally efficient. It is demonstrated that the method performs well with a sloping bottom bathymetry and varying incident wave angles.
Keywords
mild-slope equation; reflection; transmission; diffraction; porous breakwater;
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1 Maruyama, K. and Kajima, R. (1985). Two dimensional wave calculation method based on unsteady mild-slope equation. Report Electric Central Res. Inst. No.384041 (in Japanese)
2 Steward, D.R. and Panchang, V.G. (2001). Improved coastal boundary condition for surface water waves. Ocean Eng., 28, 139-157   DOI   ScienceOn
3 전인식, 최민호, 심재설, 오병철 (2002). 부유식 방파제의 반사-투과 경계조건을 적용한 항만 정온도의 해석. 한국해안.해양공학회지, 14(1), 76-85
4 Yu, X. (1995). Diffraction of water waves by porous break-waters. Journal of Wtry. Port, Coastal and Ocean Eng., 121(6), 275-282   DOI   ScienceOn
5 Watanabe, A. and Maruyama, K. (1986). Numerical modeling of nearshore wave field under combined refraction, diffraction and breaking. Coastal Eng., Japan, 29, 19-39   DOI
6 Madsen, P.A. (1983). Wave reflection from a vertical permeable wave absorber. Coastal Eng., 7, 381-396   DOI   ScienceOn
7 McIver, P. (1999) Water-wave diffraction by thin porous break-water. Journal of Wtry. Port, Coastal and Ocean Eng., 125(2), 66-71   DOI   ScienceOn