The dynamics of a cylindrical zone of turbulent mixing in a longitudinal shear flow of a linearly stratified medium

被引：2
|
作者：
Moshkin, N. P. [1 ]
Fomina, A. V. [2 ]
Chernykh, G. G. [3 ,4 ]
机构：
[1] RAS, SB, Lavrentyev Inst Hydrodynam, Novosibirsk, Russia
[2] Kemerovo State Univ, Novokuznetsk Inst Branch, Novokuznetsk, Russia
[3] RAS, SB, Inst Computat Technol, Novosibirsk, Russia
[4] Novosibirsk State Univ, Novosibirsk, Russia
来源：
THERMOPHYSICS AND AEROMECHANICS | 2019年 / 26卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
stratified fluid; cylindrical zone of turbulent mixing; longitudinal horizontally uniform shear flow; numerical simulation; WAKES; COLLAPSE;
D O I：
10.1134/S0869864319010050
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A numerical model has been constructed and the investigation of the dynamics of a cylindrical localized region of turbulent disturbances in a longitudinal horizontally homogeneous shear flow of a linearly stratified fluid has been carried out. Computational results have shown a considerable generation of turbulence energy at the expense of shear flow gradients. It was also found that the shear flow affects weakly the internal waves generated at the evolution of the turbulent mixing zone.
引用
收藏
页码：37 / 45
页数：9
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