Direct numerical simulation of turbulent mixing

被引：3

作者：

Statsenko, V. P. ^{[1
]}

Yanilkin, Yu. V. ^{[1
]}

Zhmaylo, V. A. ^{[1
]}

机构：

[1] RFNC VNIIEF, Sarov 607188, Nizhny Novgorod, Russia

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2013年 / 371卷 / 2003期

关键词：

turbulent mixing; direct numerical simulation; gravitational mixing; shear mixing; shock wave mixing; buoyant jet; RAYLEIGH-TAYLOR INSTABILITY;

D O I：

10.1098/rsta.2012.0216

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The results of three-dimensional numerical simulations of turbulent flows obtained by various authors are reviewed. The paper considers the turbulent mixing (TM) process caused by the development of the main types of instabilities: those due to gravitation (with either a fixed or an alternating-sign acceleration), shift and shock waves. The problem of a buoyant jet is described as an example of the mixed-type problem. Comparison is made with experimental data on the TM zone width, profiles of density, velocity and turbulent energy and degree of homogeneity.

引用

页数：19

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