Author
J.S. Mani
Bio: J.S. Mani is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Breakwater & Similitude. The author has an hindex of 4, co-authored 5 publications receiving 143 citations.
Papers
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TL;DR: In this article, a cage floating breakwater with a shallow water cage culture unit was developed and experiments were conducted to study the performance of the cage under wave and wave-current environment and compared with those reported in the literature.
Abstract: Conventional floating breakwaters are examined and the feasibility of developing a cage floating breakwater is explored. Earlier studies on floating breakwaters reveal that, to achieve a transmission coefficient (\iK\i\dt) less than 0.5, the breakwater width to wave length ratio (\IW/L\N) should necessarily be greater than 0.4 for most of the configurations. Recent studies on cost-effective floating breakwaters indicate that by fixing a row of pipes below the floating body, the \IW/L\N requirement can be reduced to 0.15 without any compromise in the performance. This concept has been adopted in developing a new configuration to serve as: (1) a floating breakwater; and (2) as a possible shallow water cage culture unit. Experiments were conducted to study the performance of the cage floating breakwater under wave and wave-current environment. The results on transmission and reflection coefficients are presented and compared with those reported in the literature. The variation of water surface oscillations and velocities within the cage, the effect of mooring line stiffness, and initial tension on transmission characteristics are also discussed.
93 citations
TL;DR: In this article, the authors presented the results of a numerical model study on the transmission characteristics of a submerged breakwater, which aimed to determine the effect of depth of submergence, crest width, initial wave conditions and material properties.
45 citations
9 citations
TL;DR: In this article, a satellite port has been proposed about 14.8 km north of Madras port on the east coast of India, and a numerical model study involving sediment transport and combined wave refraction-diffraction was conducted to predict the shoreline behavior.
5 citations
TL;DR: The limitations imposed on the model structure due to the usage of model laws and the methods adopted to overcome the same are discussed in this paper, where the probable candidate materials for the modelling for experimentation is also highlighted.
3 citations
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TL;DR: In this paper, the authors proposed a simple, inexpensive, and effective type of floating breakwater for deep-sea aquaculture, which can effectively protect fish and fish cages.
114 citations
TL;DR: In this article, the authors investigated experimentally the hydrodynamic performance of floating breakwaters with and without pneumatic chambers, and they showed that the installation of the pnumatic chambers significantly enhanced the wave energy dissipation as well as reduced the wave transmission.
101 citations
TL;DR: In this article, a floating breakwater with an impermeable vertical sidewall is considered and its performance in waves is investigated, which shows that the structure can reduce incident wave height by dissipating wave energy more than reflecting it.
76 citations
TL;DR: In this article, the coupled motion between progressive wave and floating curtain-wall type breakwater is simulated by an incompressible Smoothed Particle Hydrodynamics (SPH) method combined with a Large Eddy Simulation (LES) model.
Abstract: The coupled motion between progressive wave and floating curtain-wall type breakwater is simulated by an incompressible Smoothed Particle Hydrodynamics (SPH) method combined with a Large Eddy Simulation (LES) model. The Naviers-Stokes equations in Lagrangian form are solved using a two-step split method. The method first integrates the velocity field in time without enforcing incompressibility. Then the resulting deviation of particle density is projected into a divergence-free space to satisfy incompressibility. The SPH method is convenient for describing free surfaces and moving boundaries of the floating body. The LES model is capable of dealing with turbulence during the wave-breakwater interactions. The translation and rotation of the floating curtain wall is calculated through an additional rigid-body-tracking subroutine. The computed wave profiles and hydrodynamic forces by the current model are in good agreement with those reported in the literature. Finally, the wave transmission and reflection c...
71 citations
TL;DR: In this paper, the results and conclusions obtained from the physical model tests carried out with four different designs of floating breakwaters were presented, and the authors observed the great influence that the wave obliquity has in the module connector forces.
62 citations