Browse > Article

A Study on Effect of Beachface Gradient on 3-D Currents around the Open Inlet of Submerged Breakwaters  

Lee, Woo-Dong (Department of Ocean Civil Engineering, Graduate School, Gyeongsang National University)
Hur, Dong-Soo (Department of Ocean Civil Engineering (Institute of Marine Industry), Gyeongsang National University)
Park, Jong-Bae (POSCO Engineering & Construction Co., Ltd.)
An, Sung-Wook (POSCO Engineering & Construction Co., Ltd.)
Publication Information
Journal of Ocean Engineering and Technology / v.23, no.1, 2009 , pp. 7-15 More about this Journal
Abstract
The aim of this study was to survey the effects of the beachface gradient on 3-D currents around the open inlets of submerged breakwaters. First, the numerical model was validated by a comparison with existing experimental data. This model is able to consider the flow through a porous medium with inertial, laminar, and turbulent resistance terms, i.e. simulate directly WAve?Structure?Seabed/Sandy beach interaction, and can determine the eddy viscosity with a LES turbulent model in a 3-Dimensional wave field (LES-WASS-3D). Using the numerical results of this model, the 3-D currents around the open inlets of submerged breakwaters were examined in relation to the beachface gradient. Moreover, the wave height distribution and mean flow around them are also discussed, as well as the distribution of the wave breaking points over the crest.
Keywords
Open inlet of submerged breakwater; Beachface gradient; Wave breaking point; 3-D flow; LES-WASS-3D;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 김용현 (2009). 부산 송도해수욕장에서의 MONITORING을 통한 파랑변형 및 표사이동에 관한 연구, 석사학위논문, 인제대학교
2 허동수, 이우동 (2007). '잠제 주변의 파고분포 및 흐름의 3차원특성; PART I-해빈이 없을 경우', 대한토목학회논문집, 제27권, 제6B호, pp 689-701
3 허동수, 이우동 (2008a). '잠제 주변의 파고분포 및 흐름의 3차원 특성; PART II-해빈이 있을 경우', 대한토목학회논문집,제28권, 제1B호, pp 115-123
4 허동수, 이우동 (2008b). '잠제 설치 연안의 처오름 높이 특성;PART I-잠제의 평면배치에 의한 영향', 대한토목학회논문집, 제28권, 제3B호, pp 345-354
5 허동수, 이우동, 배기성 (2008). '사각격자체계 수치모델에서의 경사면 처리기법에 관하여', 대한토목학회논문집, 제28권, 제5B호, pp 591-594
6 우다 타카아키, 오마타 아츠시, 요코야마 아게히사 (1988). 인공리프의 기능과 설계법, 일본 건설성 토목연구소 하천부 해안연구실, 토목연구소자료, 제2969호, p79
7 Drei, E. and Lamberti, A. (1999). 'Wave Pumping Effect of a Submerged Barrier', Proc. International Conference on Coastal Structures, pp 667-674
8 Hur, D.S., Kim, C.H., Kim, D.S. and Yoon, J.S. (2008). 'Simulation of the Nonlinear Dynamic Interactions Between Waves, a Submerged Breakwater and the Seabed', Ocean Eng., Vol 35, pp 511-522   DOI   ScienceOn
9 Johnson, H.K., Karambas, T.V., Avgeris, I., Zanuttigh, B., Gonzalez-Maroco, D. and Caceres, I. (2005). 'Modelling of Waves and Currents around Submerged Breakwaters', Coastal Eng., Vol 52, pp 949-969   DOI   ScienceOn
10 Ma, H.H., Mizutani, N., Eguchi, S. and Hur, D.S. (2004). 'Study on Beach Profile Change and Wave Induced Velocity Field in Permeable Beach', Journal of Civil Engineering in the Ocean, JSCE, Vol 20, pp 509-514(in Japanese)   DOI
11 Sakakiyama, T. and Kajima, R. (1992). 'Numerical Simulation of Nonlinear Wave Interacting with Permeable Breakwater', Proc. 23rd Int. Conf. Coastal Eng., ASCE, pp 1517-1530
12 Garcia, N., Lara, J.L. and Losada, I.J. (2004). '2-D Numerical Analysis of Near-Field Flow at Low-Crested Permeable Breakwaters', Coastal Eng., Vol 51, pp 991-1020   DOI   ScienceOn
13 Yanashiro, M., Yoshida, A. and Irie, I. (1999). 'Experimental Study on Wave Field Behind a Submerged Breakwater', Proc., International Conference on Coastal Structures, pp 675-682
14 van Gent, M.R.A. (1995). Wave Interaction with Permeable Coastal Structures, Ph.D. Thesis, Delft University The Netherlands
15 Lara, J.L., Garcia, N. and Losada, I.J. (2006). 'RANS Modelling Applied to Random Wave Interaction with Submerged Permeable Structures', Coastal Eng., Vol 53, pp 395-417   DOI   ScienceOn
16 Liu, S. and Masliyah, J.H. (1999). 'Non-linear Flows in Porous Media', J. Non-Newtonian Fluid Mech., Vol 86, pp 229-252   DOI   ScienceOn
17 허동수, 이우동 (2008c). '잠제 설치 연안의 처오름 높이 특성;PART II-잠제의 제원에 의한 영향', 대한토목학회논문집,제28권, 제4B호, pp 429-439
18 Ergun, S. (1952). 'Fluid Flow Through Packed Columns', Chem Eng., Vol 48, No 2, pp 89-94
19 Hur, D.S. (2004). 'Deformation of Multi-Directional Random Waves Passing over an Impermeable Submerged Breakwater Installed on a Sloping Bed', Ocean Eng., Vol 31, pp 1295-1311   DOI   ScienceOn
20 Osanai, K. and Minami, M. (2003). 'Experimental Study on Vertical Velocity Distribution around the Opening of Artificial Reefs', Journal of Civil Engineering in the Ocean, JSCE, Vol 19, pp 213-218(in Japanese)   DOI
21 허동수, 김도삼 (2003). '경사수역에 설치된 잠제 주변의 유속장과 와의 발생에 대한 수치모의', 한국해안.해양공학회지,제15권, 제3호, pp 151-158
22 Smagorinsky, J. (1963). 'General Circulation Experiments with the Primitive Equation', Monthly Weather Review, Vol 91, No 3, pp 99-164   DOI
23 Kramer, M., Zanuttigh, B., van der Meer, J.W., Vidal, C. and Gironella, F.X. (2005). 'Laboratory Experiments on Low-Crested Breakwaters', Coastal Eng., Vol 52, pp 867-885   DOI   ScienceOn