3-DIMENSIONAL NUMERICAL-SIMULATION OF TURBULENT MIXING BY RAYLEIGH-TAYLOR INSTABILITY

被引：259

作者：

YOUNGS, DL

机构：

[1] Atomic Weapons Establishment, Aldermaston

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1991年 / 3卷 / 05期

关键词：

D O I：

10.1063/1.858059

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Three-dimensional simulation of the mixing of miscible fluids by Rayleigh-Taylor instability is described for density ratios, rho-1/rho-2, in the range of 1.5 to 20. Significant dissipation of density fluctuations and kinetic energy occurs via the cascade to high wave numbers. Comparison is made with experimental measurements of the overall growth of the mixing zone and of the magnitude of density fluctuations. The differences between 2-D and 3-D simulation are discussed.

引用

页码：1312 / 1320

页数：9

共 26 条

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