Rayleigh-Taylor instability of a miscible interface in a confined domain

T Lyubimova, A Vorobev, S Prokopev - Physics of Fluids, 2019 - pubs.aip.org
On the basis of the phase-field approach, we investigate the simultaneous diffusive and
convective evolution of an isothermal binary mixture of two slowly miscible liquids that are …

The effects of density difference and surface tension on the development of Rayleigh-Taylor instability of an interface between fluid media

SN Yakovenko - Fluid Dynamics, 2014 - Springer
To describe the evolution of an interface between two immiscible media, an equation for a
volume fraction function is derived, with the interface curvature effect being described by a …

Kelvin-Helmholtz and Holmboe instabilities of a diffusive interface between miscible phases

T Zagvozkin, A Vorobev, T Lyubimova - Physical Review E, 2019 - APS
The stability of a shear flow imposed along a diffusive interface that separates two miscible
liquids (a heavier liquid lies underneath) is studied using direct numerical simulations. The …

[HTML][HTML] Mixed-mode instability of a miscible interface due to coupling between Rayleigh-Taylor and double-diffusive convective modes

J Carballido-Landeira, PMJ Trevelyan, C Almarcha… - Physics of …, 2013 - pubs.aip.org
In a gravitational field, a horizontal interface between two miscible fluids can be buoyantly
unstable because of double diffusive effects or because of a Rayleigh-Taylor instability …

Rayleigh–Benard and interfacial instabilities in two immiscible liquid layers

S Wahal, A Bose - The Physics of fluids, 1988 - pubs.aip.org
The linear stability of two immiscible liquid layers heated from below through a rigid perfectly
conducting boundary with a free deformable upper surface and a deformable liquid–liquid …

Relative role of convective and diffusive mixing in the miscible Rayleigh-Taylor instability in porous media

SS Gopalakrishnan, J Carballido-Landeira, A De Wit… - Physical Review …, 2017 - APS
The relative role of convection and diffusion is characterized both numerically and
experimentally for porous media flows due to a Rayleigh-Taylor instability of a horizontal …

[PDF][PDF] An overview of Rayleigh-Taylor instability

DH Sharp - Physica D: Nonlinear Phenomena, 1984 - courses.physics.ucsd.edu
The Rayleigh-Taylor instability is a fingering instability of an interface between two fluids of
different densities, which occurs when the light fluid is pushing the heavy fluid [1, 2]. The aim …

[HTML][HTML] Numerical simulation of the three-dimensional Rayleigh–Taylor instability

HG Lee, J Kim - Computers & Mathematics with Applications, 2013 - Elsevier
Abstract The Rayleigh–Taylor instability is a fundamental instability of an interface between
two fluids of different densities, which occurs when the light fluid is pushing the heavy fluid …

The nonlinear behavior of a sheared immiscible fluid interface

W Tauber, SO Unverdi, G Tryggvason - Physics of Fluids, 2002 - pubs.aip.org
The two-dimensional Kelvin–Helmholtz instability of a sheared fluid interface separating
immiscible fluids is studied by numerical simulations. The evolution is determined by the …

Rayleigh-Taylor instability with magnetic fluids: Experiment and theory

G Pacitto, C Flament, JC Bacri, M Widom - Physical Review E, 2000 - APS
We present experiments showing the Rayleigh-Taylor instability at the interface between a
dense magnetic liquid and an immiscible less dense liquid. The liquids are confined in a …