Scattering of Oblique Water Waves by an Infinite Step

The present paper is concerned with the problem of scattering of obliquely incident surface water wave train passing over a step bottom between the regions of finite and infinite depth. Havelock expansions of water wave potentials are used in the mathematical analysis to obtain the physical paramete...

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Main Authors: P. Dolai, D.P. Dolai
Format: Article
Language:English
Published: University of Zielona Góra 2018-05-01
Series:International Journal of Applied Mechanics and Engineering
Subjects:
Online Access:https://www.ijame-poland.com/Scattering-of-Oblique-Water-Waves-by-an-Infinite-Step,166980,0,2.html
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author P. Dolai
D.P. Dolai
author_facet P. Dolai
D.P. Dolai
author_sort P. Dolai
collection DOAJ
description The present paper is concerned with the problem of scattering of obliquely incident surface water wave train passing over a step bottom between the regions of finite and infinite depth. Havelock expansions of water wave potentials are used in the mathematical analysis to obtain the physical parameters reflection and transmission coefficients in terms of integrals. Appropriate multi-term Galerkin approximations involving ultra spherical Gegenbauer polynomials are utilized to obtain very accurate numerical estimates for reflection and transmission coefficients. The numerical results are illustrated in tables.
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spelling doaj.art-51fa0b26131b4731ae29e90592d8c5342023-08-08T14:58:34ZengUniversity of Zielona GóraInternational Journal of Applied Mechanics and Engineering1734-44922353-90032018-05-0123232733810.2478/ijame-2018-0018166980Scattering of Oblique Water Waves by an Infinite StepP. Dolai0D.P. Dolai1Department of Mathematics, Prasannadeb Women’s College, Jalpaiguri-, 735101, West Bengal, IndiaRiver Research Institute, West Bengal, Haringhata Central Laboratory, Mohanpur, Nadia, Pin-, 741246, IndiaThe present paper is concerned with the problem of scattering of obliquely incident surface water wave train passing over a step bottom between the regions of finite and infinite depth. Havelock expansions of water wave potentials are used in the mathematical analysis to obtain the physical parameters reflection and transmission coefficients in terms of integrals. Appropriate multi-term Galerkin approximations involving ultra spherical Gegenbauer polynomials are utilized to obtain very accurate numerical estimates for reflection and transmission coefficients. The numerical results are illustrated in tables.https://www.ijame-poland.com/Scattering-of-Oblique-Water-Waves-by-an-Infinite-Step,166980,0,2.htmlinfinite stephavelock expansiongalerkin approximationgegenbauer polynomialreflection and transmission coefficients
spellingShingle P. Dolai
D.P. Dolai
Scattering of Oblique Water Waves by an Infinite Step
International Journal of Applied Mechanics and Engineering
infinite step
havelock expansion
galerkin approximation
gegenbauer polynomial
reflection and transmission coefficients
title Scattering of Oblique Water Waves by an Infinite Step
title_full Scattering of Oblique Water Waves by an Infinite Step
title_fullStr Scattering of Oblique Water Waves by an Infinite Step
title_full_unstemmed Scattering of Oblique Water Waves by an Infinite Step
title_short Scattering of Oblique Water Waves by an Infinite Step
title_sort scattering of oblique water waves by an infinite step
topic infinite step
havelock expansion
galerkin approximation
gegenbauer polynomial
reflection and transmission coefficients
url https://www.ijame-poland.com/Scattering-of-Oblique-Water-Waves-by-an-Infinite-Step,166980,0,2.html
work_keys_str_mv AT pdolai scatteringofobliquewaterwavesbyaninfinitestep
AT dpdolai scatteringofobliquewaterwavesbyaninfinitestep