Numerical simulation of dynamics of turbulent wakes behind towed bodies in linearly stratified media

被引：7
作者：
Chernykh, G. G. [1 ,2 ]
Fomina, A. V. [3 ]
Moshkin, N. P. [4 ]
机构：
[1] Russian Acad Sci, Inst Computat Technol, Siberian Branch, Novosibirsk 630090, Russia
[2] Siberian State Univ Telecommun & Informat, Novosibirsk 630102, Russia
[3] Kuzbass State Pedag Academy, Novokuznetsk 654027, Russia
[4] Suranaree Univ Technol, Inst Sci, Nakhon Ratchasima 30000, Thailand
来源：
JOURNAL OF ENGINEERING THERMOPHYSICS | 2009年 / 18卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
SPHERE; FLOW;
D O I：
10.1134/S1810232809040031
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A hierarchy of semiempirical turbulence models of second order is involved for the description of a fluid flow in a far turbulent wake behind a towed body. The most complicated model includes the differential equations for normal Reynolds stresses transfer as well as the equation for the triple correlations of fluctuations of the vertical velocity component. Results of calculations are represented. They demonstrate the dynamics of a far turbulent wake in a linearly stratified medium in comparison with dynamics of a far momentumless turbulent wake. Anisotropic decay of turbulence in a far wake behind a towed body is numerically investigated. A numerical model of passive scalar dynamics in turbulent wakes behind bodies moving in a linearly stratified medium is represented.
引用
收藏
页码：279 / 305
页数：27
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