Peak mooring forces in the horizontal interlaced multi-layered moored floating pipe breakwater
0
조회
0
다운로드
0
인용
0
참고문헌
초록
Present study aims to investigate the influence of relative breakwater width W/L (W=width of breakwater,L=wavelength), wave steepness H_i /gT² (H_i=incident wave height, T=wave period) and relative wave height d/W (d=water depth) on forces in the moorings of horizontal interlaced multi-layered moored floating pipe breakwater (HIMMFPB) model. Studies were conducted on scaled down physical models having three layers of Poly Vinyl Chloride (PVC) pipes, wave steepness H_i/gT² varying from 0.063 to 0.849, relative width W/L varying from 0.4 to 2.65 and relative spacing S/D=2 (S=horizontal centre-to-centre spacing of pipes, D=diameter of pipes). Peak mooring forces were also measured and data collected is analyzed by plotting non-dimensional graphs depicting variation of f_s /γW² (f_s=Sea side Mooring force, γ=specific weight of water) & fl/γW² (fl=Lee side Mooring force) with H_i/gT² for d/W varying from 0.082 to 0.276 and also variation of f_s/γW² and f l/γW² with W/L for H_i /d varying from 0.06 to 0.400.
Abstract
Present study aims to investigate the influence of relative breakwater width W/L (W=width of breakwater,L=wavelength), wave steepness H_i /gT² (H_i=incident wave height, T=wave period) and relative wave height d/W (d=water depth) on forces in the moorings of horizontal interlaced multi-layered moored floating pipe breakwater (HIMMFPB) model. Studies were conducted on scaled down physical models having three layers of Poly Vinyl Chloride (PVC) pipes, wave steepness H_i/gT² varying from 0.063 to 0.849, relative width W/L varying from 0.4 to 2.65 and relative spacing S/D=2 (S=horizontal centre-to-centre spacing of pipes, D=diameter of pipes). Peak mooring forces were also measured and data collected is analyzed by plotting non-dimensional graphs depicting variation of f_s /γW² (f_s=Sea side Mooring force, γ=specific weight of water) & fl/γW² (fl=Lee side Mooring force) with H_i/gT² for d/W varying from 0.082 to 0.276 and also variation of f_s/γW² and f l/γW² with W/L for H_i /d varying from 0.06 to 0.400.
참고문헌 (11)
- Brebner, A, "Floating Breakwaters", Proceedings of 11th Conference on Coastal Engineering, pp.1055~1094 (1968)
- Bishop, T.C., "Floating tire breakwater design comparison", Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 108(3), pp.421~426 (1982)
- Chen, K, "Floating breakwaters for reservoir marinas", Proceedings of the 12th Coastal Engineering Conference, 통권 : 3, pp.1647~1666 (1970)
- Harris, A.J, "A Floating breakwater", Proceedings of the 11th Coastal Engineering Conference, pp.1049~1054 (1968)
- Harms, V.M., "Design criteria for floating tire breakwater", Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 106(2), pp.149~170 (1979)
- Hegde, A.V, "Performance characteristics of horizontal interlaced multilayer moored floating pipe breakwater", Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 133(4), pp.275~285 (2008)
- Mani, J.S, "Design of Y-frame floating breakwater", Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 117(2), pp.105~119 (1991)
- Michael Isaacson, "Measurement of Regular Wave Reflection", Journal of Waterway, Port, and Ocean Engineering, 117(6), pp.553~569 (1991)
- Murali, K, "Performance of cage floating breakwater", Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 123(4), pp.172~179 (1997)
- Sannasiraj, S.A, "Mooring forces and motion response of pontoon-type floating breakwaters", Ocean Engineering, 25(1), pp.27~48 (1998)
- Sundar, V, "Hydrodynamic characteristics of moored floating pipe breakwater in random waves", Journal of Engineering for the Maritime Environment, 217(2), pp.95~110 (2003)