Far Fields of Internal Waves Excited by a Pulsing Source in a Stratified Medium with Shear Flows

被引:2
|
作者
Bulatov, V. V. [1 ]
Vladimirov, Yu. V. [1 ]
机构
[1] Russian Acad Sci, Ishlinsky Inst Problems Mech, Moscow 119526, Russia
关键词
stratified medium; internal gravity waves; buoyancy frequency; shear flows;
D O I
10.1134/S0021894419060051
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A problem of the far field of internal gravity waves excited by an oscillating point source of perturbations in a stratified medium with a shear flow is solved. A model distribution of the shear flow velocity by depth is considered and an analytical solution to this problem is obtained in the form of the characteristic Green function expressed in terms of the modified Bessel functions of the imaginary index. Expressions for dispersion relations are obtained and integral representations of solutions are constructed. The dependences of the wave characteristics of the excited fields on the main parameters of the used stratification models, flows, and generation regimes are investigated.
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页码:1013 / 1019
页数:7
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