Density variations in fluid flows can arise due to acoustic or thermal fluctuations,
compositional changes during mixing of fluids with different molar masses, or phase …

The homogenization of a heterogeneous mixture of two pure fluids with different densities by
molecular diffusion and stirring induced by buoyancy-generated motions, as occurs in the …

We propose a simple empirical model to describe the Rayleigh–Taylor (RT) turbulent mixing
of immiscible, miscible and stratified fluids. For immiscible fluids, the rate of momentum loss …

Direct numerical simulations (DNS) are presented of three-dimensional, Rayleigh–Taylor
instability (RTI) between two incompressible, miscible fluids, with a 3: 1 density ratio …

We describe a two-point spectral transport approach to the investigation of fluid instability,
generalized turbulence, and the interpenetration of fluids across an interface. The technique …

This book deals with density, temperature, velocity and concentration fluctuations in fluids
and fluid mixtures. The book first reviews thermal fluctuations in equilibrium fluids on the …

Turbulence developed from Rayleigh-Taylor instability between two compressible miscible
fluids in an unbounded domain is addressed in this paper. It is demonstrated that the …

The Rayleigh–Taylor instability of an interface separating fluids of distinct density is driven
by an acceleration across the interface. Low order statistical moments of fluctuating fluid …

Mixing of initially distinct substances plays an important role in our daily lives as well as in
ecological and technological worlds. From the continuum point of view, which we adopt …

We consider the effects of thermal noise on the Batchelor-Kraichnan theory of high Schmidt-
number mixing in the viscous dissipation range of turbulent flows at sub-Kolmogorov scales …