S. P. Kshevetskii, Yu. A. Kurdyaeva, N. M. Gavrilov, S. N. Kulichkov
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引用次数: 0
Abstract
The process of propagation and disintegration of long low-frequency nonlinear acoustic-gravity waves into the upper atmosphere is investigated. One spectral wave mode is considered, for which an approximate nonlinear Korteweg-de Vries–Burgers equation is derived using the formulated version of the variational principle for a fluid layer. The coefficients of the derived equation depend on the height. The issue of wave destruction into smaller-scale solitary waves is investigated in the study. The conditions for wave destruction are written out and formulas for estimating the scales of secondary soliton waves formed during the disintegration of the primary wave are written out. It is shown that wave destruction can occur only in certain layers determined by the vertical structure of the wave.
期刊介绍：
Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.
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