Compressibility effects in Rayleigh-Taylor flows: influence of the stratification

被引：13

作者：

Gauthier, S. ^{[1
]}

机构：

[1] CEA, DAM, DIF, F-91297 Bruyeres Le Chatel, Arpajon, France

来源：

PHYSICA SCRIPTA | 2013年 / T155卷

基金：

美国国家科学基金会;

关键词：

MISCIBLE FLUIDS; MIXING RATES; INSTABILITY;

D O I：

10.1088/0031-8949/2013/T155/014012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effects of a strong initial density stratification in a Rayleigh-Taylor instability for two miscible compressible fluids is studied by means of linear stability analysis and direct numerical simulations. As expected, stratification first annihilates turbulence production by smoothing the initial density jump. In the second step, a freely decaying regime, the turbulence homogenizes mixing inside the turbulent region, although the layer thickness does no longer grows significantly. Turbulence and mixing characteristics are detailed.

引用

页数：8

共 50 条

[41] Simulating Rayleigh-Taylor induced magnetohydrodynamic turbulence in prominences [J].

Changmai, M. ;

Jenkins, J. M. ;

Durrive, J. B. ;

Keppens, R. .

ASTRONOMY & ASTROPHYSICS, 2023, 672

[42] Rayleigh-Taylor vortices in a pair-ion plasma [J].

Adak, Ashish ;

Khan, Manoranjan .

PHYSICS OF PLASMAS, 2015, 22 (04)

[43] Parametric investigation of the transition to turbulence in Rayleigh-Taylor mixing [J].

Morgan, Brandon E. ;

Black, Wolfgang J. .

PHYSICA D-NONLINEAR PHENOMENA, 2020, 402

[44] High-Reynolds number Rayleigh-Taylor turbulence [J].

Livescu, D. ;

Ristorcelli, J. R. ;

Gore, R. A. ;

Dean, S. H. ;

Cabot, W. H. ;

Cook, A. W. .

JOURNAL OF TURBULENCE, 2009, 10 (13) :1-32

[45] Incompressible Rayleigh-Taylor mixing in circular and spherical geometries [J].

Boffetta, G. ;

Musacchio, S. .

PHYSICAL REVIEW E, 2022, 105 (02)

[46] The ultimate state of thermal convection in Rayleigh-Taylor turbulence [J].

Boffetta, G. ;

De Lillo, F. ;

Mazzino, A. ;

Vozella, L. .

PHYSICA D-NONLINEAR PHENOMENA, 2012, 241 (03) :137-140

[47] An analysis of the buoyancy and drag parameters in Rayleigh-Taylor dynamics [J].

Hill, Des ;

Abarzhi, Snezhana .

MATHEMATICAL MODELLING OF NATURAL PHENOMENA, 2023, 18

[48] Rayleigh-Taylor convective dissolution in confined porous media [J].

De Paoli, Marco ;

Zonta, Francesco ;

Soldati, Alfredo .

PHYSICAL REVIEW FLUIDS, 2019, 4 (02)

[49] Quantum effects on the Rayleigh-Taylor instability of stratified fluid/plasma through porous media [J].

Hoshoudy, G. A. .

PHYSICS LETTERS A, 2009, 373 (30) :2560-2567

[50] Control of Rayleigh-Taylor instability onset time and convective velocity by differential diffusion effects [J].

Gopalakrishnan, S. S. ;

Carballido-Landeira, J. ;

Knaepen, B. ;

De Wit, A. .

PHYSICAL REVIEW E, 2018, 98 (01)

← 1 2 3 4 5 →