Numerical Modeling of Two-Dimensional Flow of a Nonhomogeneous Fluid in a Confined Domain

被引：0
|
作者：
Garanin, S. F. [1 ]
Kravets, E. M. [1 ]
Pronina, O. N. [1 ]
Stadnik, A. L. [1 ]
机构：
[1] Russian Fed Nucl Ctr, Res Inst Expt Phys, Sarov, Nizhny Novgorod, Russia
来源：
FLUID DYNAMICS | 2018年 / 53卷 / 01期
关键词：
two-dimensional turbulence; Rayleigh-Taylor instability;
D O I：
10.1134/S0015462818010068
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The pattern of the two-dimensional vortex flow of a nonhomogeneous fluid in a confined domain is studied using two-dimensional numerical calculations. It is found that in the case of a nonhomogeneous initial density distribution the kinetic energy decay rates are proportional to the square root of viscosity at the active stage of flow restructuring. The correlation functions of the velocity and the density are derived for different moments of time in the inertial range. All these results indicate the choice of the two-dimensional turbulence development scenario in a nonhomogeneous fluid.
引用
收藏
页码：127 / 135
页数：9
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