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Zapiski Nauchnykh Seminarov POMI, 2011, Volume 393, Pages 46–79
(Mi znsl4615)
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This article is cited in 2 scientific papers (total in 2 papers)
Asymptotics of frequency of a surface wave trapped by a slightly inclined barrier in a liquid layer
J. H. Videmana, V. Chiado' Piatb, S. A. Nazarovc a CEMAT/Departamento de Matematica, Instituto Superior Tecnico, Lisboa, Portugal
b Politcnico of Torino, Torino, Italy
c Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, Russia
Abstract:
We consider the two-dimensional formulation of the problem on an oblique surface wave for an obstacle in the shape of a submerged strip-barrier. If the barrier is vertical, the discrete spectrum of the problem is empty, but for an inclined barrier there appear an eigenvalue below the threshold of the continuous spectrum and the corresponding trapped mode which decays exponentially in the direction, perpendicular to the obstacle. The asymptotics of the eigenvalue is found in the case of a small inclination angle.
Key words and phrases:
trapped mode, water-wave, discrete spectrum, asymptotic behaviour of eigenvalues.
Received: 05.09.2011
Citation:
J. H. Videman, V. Chiado' Piat, S. A. Nazarov, “Asymptotics of frequency of a surface wave trapped by a slightly inclined barrier in a liquid layer”, Mathematical problems in the theory of wave propagation. Part 41, Zap. Nauchn. Sem. POMI, 393, POMI, St. Petersburg, 2011, 46–79; J. Math. Sci. (N. Y.), 185:4 (2012), 536–553
Linking options:
https://www.mathnet.ru/eng/znsl4615 https://www.mathnet.ru/eng/znsl/v393/p46
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Abstract page: | 331 | Full-text PDF : | 76 | References: | 67 |
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