Floating breakwaters have potential applications in protecting minor ports and harbors such as fisheries and recreational harbors, where-in stringent tranquillity requirements are not warranted. In field applications of the existing floating breakwaters, limitations are imposed due to their large relative width (ratio between breakwater width and wave length) requirements to achieve desirable tranquillity level. This relative width requirement is greater than 0.3 for the existing floating breakwaters. To overcome the above drawback associated with the existing system a new configuration for a floating breakwater is derived, which could yield the desired performance with minimum relative width requirement. The floating breakwater comprises of two pontoons rigidly connected together and each of the pontoons having a row of cylinders attached beneath, for improved performance characteristics. The laboratory tests were conducted in both regular and random wave flumes to study the dynamic behavior of the breakwater. Transmission and reflection coefficients, water surface elevations and velocities inside the cage like area provided in between the pontoons, rigid body motions floating breakwater and mooring forces were studied under regular and random waves and under the regular waves followed by a uniform current. The results proved the suitability of the floating breakwater to the field conditions even for large wave periods. In addition the variations in water particle kinematics, rigid body motion and mooring forces show nominal magnitudes when compared to the existing systems indicating the rigidness of the breakwater.
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November 2005
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Dynamics of Cage Floating Breakwater Available to Purchase
K. Murali,
K. Murali
Asst. Professor
0091-44-225784816
0091-44-22574801
Dept. of Ocean Engineering,
e-mail: [email protected]
Indian Institute of Technology Madras
, Chennai-600036, India
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S. S. Amer,
S. S. Amer
Graduate Student
0091-44-2574816
0091-44-22574801
Dept. of Ocean Engineering,
e-mail: syeḏ[email protected]
Indian Institute of Technology Madras
, Chennai-600036, India
Search for other works by this author on:
J. S. Mani
J. S. Mani
Professor
0091-44-22574806
0091-44-22574801
Dept. of Ocean Engineering,
e-mail: [email protected]
Indian Institute of Technology Madras
, Chennai-600036, India
Search for other works by this author on:
K. Murali
Asst. Professor
0091-44-225784816
0091-44-22574801
Dept. of Ocean Engineering,
Indian Institute of Technology Madras
, Chennai-600036, Indiae-mail: [email protected]
S. S. Amer
Graduate Student
0091-44-2574816
0091-44-22574801
Dept. of Ocean Engineering,
Indian Institute of Technology Madras
, Chennai-600036, Indiae-mail: syeḏ[email protected]
J. S. Mani
Professor
0091-44-22574806
0091-44-22574801
Dept. of Ocean Engineering,
Indian Institute of Technology Madras
, Chennai-600036, Indiae-mail: [email protected]
J. Offshore Mech. Arct. Eng. Nov 2005, 127(4): 331-339 (9 pages)
Published Online: May 27, 2005
Article history
Received:
July 19, 2004
Revised:
May 27, 2005
Citation
Murali, K., Amer, S. S., and Mani, J. S. (May 27, 2005). "Dynamics of Cage Floating Breakwater." ASME. J. Offshore Mech. Arct. Eng. November 2005; 127(4): 331–339. https://doi.org/10.1115/1.2073347
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