Performance Characteristics of Horizontal Interlaced Multilayer Moored Floating Pipe Breakwater
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 133, Issue 4
Abstract
The paper presents the results of model scale experiments for the study of wave attenuation by horizontal interlaced, multilayer, moored floating pipe breakwater. A review of some significant floating breakwater models proposed by earlier investigators is included. For a floating breakwater the transmission coefficient is influenced by relative width of the breakwater . Nondimensional graphs indicating the variation of with respect to (with as a parameter for different values) and versus (for a range of values from 0.09 to 0.24) have been plotted. Further variation of with relative depth for different values is also studied. From the experimental study and results obtained, it is found that the transmission coefficient decreases with an increase in relative breakwater width and wave steepness for all values. In the present study it was observed that performance was better for breakwater configurations of when compared with configurations of . Further, the experimental results obtained were compared with the output of a mathematical model. From the comparison for , values of obtained from the present experiments were in agreement with those obtained from the mathematical model.
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Acknowledgments
The writers would like to express their sincere thanks to the Director, National Institute of Technology Karnataka, Surathkal, Mangalore, India, for providing all the necessary infrastructural facilities for the present study.
References
Bishop, C. T. (1982). “Floating tire breakwater design comparison.” J. Wtrwy., Port, Coast., and Oc. Div., 108(3), 421–426.
Brebner, A., and Ofuya, A. O. (1968). “Floating breakwaters.” Proc., 11th Coastal Engineering Conf., ASCE, London, 1055–1094.
Chen, K., and Wiegel, R. L. (1970). “Floating breakwaters for reservoir marinas.” Proc., 12th Coastal Engineering Conf., ASCE, Vol. III, Washington, D.C., 1647–1666.
Harms, V. W. (1979). “Design criteria for floating tire breakwaters.” J. Wtrwy., Port, Coast., and Oc. Div., 105(2), 149–170.
Harris, A. J., and Webber, N. B. (1968). “A floating breakwater.” Proc., 11th Coastal Engineering Conf., ASCE, London, 1049–1054.
Homma, M., Horikawa, K., and Mochizuki, H. (1964). “An experimental study of floating breakwaters.” Int. Conf. on Coastal Engineering, Japan, JSCE, Vol. 7, 85–94.
Kennedy, R. J., and Marsalek, J. (1968). “Flexible porous floating breakwater.” Proc., 11th Coastal Engineering Conf., ASCE, London, 1095–1103.
Leach, P. A., McDougal, W. G., and Sollitt, C. K. (1985). “Hinged floating breakwater.” J. Waterway, Port, Coastal, Ocean Eng., 111(5), 895–909.
McCartney, B. L. (1985). “Floating breakwater design.” J. Waterway, Port, Coastal, Ocean Eng., 111(2), 304–318.
Murali, K., and Mani, J. S. (1997). “Performance of cage floating breakwater.” J. Waterway, Port, Coastal, Ocean Eng., 123(4), 172–179.
Ouellet, Y., and Morin, Y. (1975). “Effect of structures on irregular waves compared to regular waves.” J. Wtrwy., Harb. and Coast. Engrg. Div., 101(3), 231–246.
Sannasiraj, S. A., Sundar, V., and Sundaravadivelu, R. (1998). “Mooring forces and motion response of pontoon-type floating breakwaters.” Ocean Eng., 25(1), 27–48.
Sastry, J. S., Narasimhan, S., and Vethamony, P. (1985). “Model studies on tethered float breakwater system.” Proc., 1st National Conf. on Dock and Harbor Engineering, IIT Bombay, Mumbai, Vol. 2, E273–E286.
Seymour, R. J. (1976). “Tethered float breakwaters: A temporary wave protection system for open ocean construction.” Proc., Offshore Technology Conf., Dallas, 253–258.
Sorenson, M. R. (1991). “Discussion of ‘Floating breakwater for small recreational harbors’ by J. E. Muschell and J. H. Schlak.” J. Waterway, Port, Coastal, Ocean Eng., 117(5), 427–428.
Stiassnie, M., and Drimer, N. (2003). “On a freely floating porous box in shallow water waves.” Appl. Ocean. Res., 25(5), 263–268.
Sundar, V., Sundaravadivelu, R., and Purushotham, S. (2003). “Hydrodynamic characteristics of moored floating pipe breakwater in random waves.” Proc., Institution of Mechanical Engineers, Part M: J. Engrg. Maritime Environment, 217(M), 95–110.
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© 2007 ASCE.
History
Received: Jul 29, 2005
Accepted: Oct 27, 2006
Published online: Jul 1, 2007
Published in print: Jul 2007
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