A new turbulent two-field concept for modeling Rayleigh-Taylor, Richtmyer-Meshkov, and Kelvin-Helmholtz mixing layers

被引：12

作者：

Llor, A ^{[1
]}

Bailly, P ^{[1
]}

机构：

[1] Commissariat Energie Atom, Bruyeres Le Chatel, France

来源：

LASER AND PARTICLE BEAMS | 2003年 / 21卷 / 03期

关键词：

mixing instabilities; Rayleigh-Taylor; Richtmyer-Meshkov; self-similar flows; turbulence modeling; two-fluid flows;

D O I：

10.1017/S0263034603213033

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An accurate turbulent mixing model for gravitationally induced instabilities with arbitrarily variable accelerations has been developed to capture the following physical aspects: (1) directed transport, (2) correct buoyancy forces, (3) turbulence diffusion, and (4) geometrical aspects. We present the two-structure two-fluid two-turbulence concept (2SFK), which consistently answers these requirements by identifying the large-scale transport structures in a statistical approach. An example of a 2SFK-based model is given and applied to the Rayleigh-Taylor case.

引用

页码：311 / 315

页数：5

共 14 条

[1]

[Anonymous], PROGR ENV SCI

[2]

BAILLY P, 2002, P 8 INT WORKSH PHYS

[3]

Cournede P.-H., 2001, THESIS ECOLE CENTRAL

[4] Self-similarity and internal structure of turbulence induced by Rayleigh-Taylor instability [J].