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 Anjan Sasmal,Sandip Paul,Soumen De.Effect of Porosity on Oblique Wave Diffraction by Two Unequal Vertical Porous Barriers[J].Journal of Marine Science and Application,2019,(4):417-432.[doi:10.1007/s11804-019-00107-4]
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Effect of Porosity on Oblique Wave Diffraction by Two Unequal Vertical Porous Barriers


Effect of Porosity on Oblique Wave Diffraction by Two Unequal Vertical Porous Barriers
Anjan Sasmal1 Sandip Paul2 Soumen De1
Anjan Sasmal1 Sandip Paul2 Soumen De1
1 Department of Applied Mathematics, University of Calcutta, 700009, Kolkata, India;
2 Department of Mathematics, Dr. B. C. Roy Engineering College, 713206, Durgapur, India
Water wave scatteringGalerkin approximationPorosityTwo unequal barriersReflection and transmission coefficients
The diffraction of obliquely incident wave by two unequal barriers with different porosity in infinitely deep water is investigated by using two-dimensional linearized potential theory. Reflection and transmission coefficients are computed numerically using appropriate Galerkin approximations for two partially immersed and two submerged barriers. The amount of energy dissipation due to the permeable barriers is derived using Green’s integral theorem. The coefficient of wave force is determined using the linear Bernoulli equation of dynamic pressure jump on the porous barriers. The numerical results of hydrodynamics quantities are illustrated graphically.


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Received date:2018-06-21;Accepted date:2019-02-27。
Foundation item:This work is partially supported by a SERB, DST(EMR/2016/005315).
Corresponding author:Soumen De,soumenisi@gmail.com
Last Update: 2020-02-04