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Direct 3-D Numerical Simulation of Overtopping on the Coastal Structures  

Hur, Dong-Soo (Institute of marine industry, Department of Civil and Environmental Engineering, Gyeongsang National University)
Kim, In-Chul (Division of Architecture and Civil Engineering, Dongseo University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.18, no.4, 2006 , pp. 383-389 More about this Journal
Abstract
In three dimensional wave field, a direct numerical simulation model, which is able to handle free-fall and slope-fall of a waterdrop due to overtopping, is proposed to evaluate the overtopping rate on the coastal structures like an absorbing revetment. A comparison between the numerical model and existing experimental results for overtopping rate was made to validate the proposed numerical model's accuracy, and showed fairly good agreement between them. It is confirmed in numerical and hydraulic(existing) model test that the overtopping quantity on a absorbing revetment becomes larger with an increase in Ursell number. Also, the overtopping rate estimated by 3-D numerical model is compared with it obtained by 2-D numerical model.
Keywords
absorbing revetment; overtopping rate; 3-D numerical model; Ursell number; vorticity distribution;
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  • Reference
1 CADMAS-SURF. (2001). Coastal development institute of technology, Tokyo, Japan
2 Hur, D.S. and Mizutani, N. (2003). Numerical estimation of the wave forces acting on a three-dimensional body on submerged breakwater. Coastal Eng., 47, 329-345   DOI   ScienceOn
3 Goda, Y. and Kishira, Y. (1976). Experiments on irregular wave overtopping characteristics of seawalls of low crest types. Technical Note of PARI, 242, 28p
4 Shankar, N. J. and Jayaratne, M.P.R. (2003). Wave run-up and overtopping on smooth and rough slopes coastal structure. Ocean Eng., 30, 221-238   DOI   ScienceOn
5 Wijayaratna, N., Okayasu, A. and Noma, T. (2000). Numerical simulation of overtopping rate on stepped seawall. Proc. Coastal Eng., JSCE, 47, 711-715 (in Japanese)
6 Hur, D.S. (2004). Deformation of multi-directional random waves passing over an impermeable submerged breakwater installed on a sloping bed., Ocean Eng., 31, 1295-1311   DOI   ScienceOn
7 Hirt, C.W. and Nichols, B.D. (1981). Volume of fluid (VOF) method for the dynamics of free boundaries. J. Comp. Phys., 39, 201-225   DOI   ScienceOn
8 Sakakiyama, T. and Imai, S. (1996). Numerical simulation of overtopping on the wave absorbing revetment. Proc. Coastal Eng., JSCE, 43, 696-700 (in Japanese)