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Effect of Relative Time Period on Mooring Forces of Floating Pipe Breakwater with Relative Spacing of Three

Authors:
Kiran Kamath at Manipal Academy of Higher Education
Kiran Kamath
Arkal Vittal Hegde at National Institute of Technology Karnataka
Arkal Vittal Hegde
K. BalakrishnaRao
K. BalakrishnaRao
K. BalakrishnaRao
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The paper presents the results of model scale experiments on horizontal interlaced, multi-layer, moored floating pipe breakwater (HIMMFPB). The studies are conducted with breakwater models having five layers, wave steepness, Hi/L (Hi is incident wave height and L is incident wave length) varying from 0.0066 to 0.0464 and relative spacing, S/D (S is the horizontal spacing of pipes and D is diameter of pipe) of three. The forces in the seaward side mooring are measured and analyzed by plotting non-dimensional graphs depicting the variation of force parameterf/γW2 (f is force in the mooring per unit length of the breakwater, γ is weight density of seawater) with Tn/T (Tn is natural time period of breakwater and T is wave period) relative time of breakwater, and for various values of wave steepness. It is observed that the force in the seaward side mooring decreases with increase in relative time period for the range of wave steepness values considered in the present experimental studies. The experimental results also reveal that the forces in the seaward side mooring increases as relative wave steepness increases.
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Hydrodynamic characteristics of moored floating pipe breakwaters in random waves
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  • Jun 2003
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Floating Breakwaters Marine structural engineering: specialized applications An approximate theory of floating breakwatersHydrodynamic characteristics of moored floating pipe breakwater in random waves
  • Jan 1972
  • 138-213
  • J R Headland
  • P Gregory
  • Tsinker
  • Springer
  • Y Ito
  • S Chiba
  • V Sundar
  • R Sundaravadivelu
  • S Purushotham
Headland, J.R., 1995.Floating Breakwaters. Marine structural engineering: specialized applications, Gregory.P.Tsinker, Springer. Ito, Y.,Chiba, S., 1972. An approximate theory of floating breakwaters. Report of the Port and Harbor Research Institute, Ministry of Transport, Japan, Vol. 11 (2), 138-213. (cross reference from Tsinker) Sundar, V., Sundaravadivelu.R., Purushotham, S., 2003.Hydrodynamic characteristics of moored floating pipe breakwater in random waves. Proceedings Institution of Mechanical Engineers, Journal of Engineering Maritime Environment, 217(M), 95-108
An approximate theory of floating breakwaters. Report of the Port and Harbor Research Institute
  • Jan 1972
  • 138-213
  • J R Headland
  • P Gregory
  • Tsinker
  • Springer
  • Y Ito
  • S Chiba
Headland, J.R., 1995.Floating Breakwaters. Marine structural engineering: specialized applications, Gregory.P.Tsinker, Springer. Ito, Y.,Chiba, S., 1972. An approximate theory of floating breakwaters. Report of the Port and Harbor Research Institute, Ministry of Transport, Japan, Vol. 11 (2), 138-213. (cross reference from Tsinker)