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Internal gravity waves excited by a moving oscilatting source in a stratified medium with variable buoyancy
V. V. Bulatov, Yu. V. Vladimirov Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, 119526, Russia
Abstract:
A problem of a far field generated by internal gravity waves from an oscillating point source of perturbations that moves in a vertically infinite stratified medium with variable buoyancy. For a simulated quadratic distribution of buoyancy frequencies, analytical solutions of the main boundary-value problem are obtained, expressed through parabolic cylinder functions. Asymptotic solutions constructed in this paper make it possible to describe amplitude-phase characteristics of far fields generated by internal gravity waves in a stratified medium with a variable Brunt–Väiää frequency.
Keywords:
stratified medium, internal gravity waves, variable buoyancy frequency.
Received: 12.03.2018 Revised: 19.07.2018 Accepted: 03.09.2018
Citation:
V. V. Bulatov, Yu. V. Vladimirov, “Internal gravity waves excited by a moving oscilatting source in a stratified medium with variable buoyancy”, Prikl. Mekh. Tekh. Fiz., 60:1 (2019), 20–26; J. Appl. Mech. Tech. Phys., 60:1 (2019), 16–21
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https://www.mathnet.ru/eng/pmtf477 https://www.mathnet.ru/eng/pmtf/v60/i1/p20
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Abstract page: | 26 | Full-text PDF : | 14 |
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