Role of non-zero bulk viscosity in three-dimensional Rayleigh-Taylor instability: Beyond Stokes' hypothesis

A Sengupta, RJ Samuel, P Sundaram, TK Sengupta - Computers & Fluids, 2021 - Elsevier
Three-dimensional direct numerical simulations (DNS) of Rayleigh-Taylor instability (RTI) at
the interface of two masses of air with a sharp temperature gradient of 149 K are performed …

Roles of bulk viscosity on Rayleigh-Taylor instability: Non-equilibrium thermodynamics due to spatio-temporal pressure fronts

TK Sengupta, A Sengupta, N Sharma, S Sengupta… - Physics of …, 2016 - pubs.aip.org
Direct numerical simulations of Rayleigh-Taylor instability (RTI) between two air masses with
a temperature difference of 70 K is presented using compressible Navier-Stokes formulation …

Numerical investigations of Rayleigh–Taylor instability with a density gradient layer

Y Song, P Wang, L Wang - Computers & Fluids, 2021 - Elsevier
Abstract The Rayleigh-Taylor instability (RTI) with a density gradient layer was investigated
by implicit large eddy simulations (ILES) in a framework of three dimensional compressible …

Role of unstable thermal stratifications on the Rayleigh–Taylor instability

A Sengupta, AK Verma - Computers & Fluids, 2023 - Elsevier
Three-dimensional simulations of Rayleigh–Taylor instability (RTI) at the interface of two
masses of air are performed by solving the compressible Navier–Stokes equation, following …

Delineation of the flow and mixing induced by Rayleigh–Taylor instability through tracers

G Zhang, A Xu, D Zhang, Y Li, H Lai, X Hu - Physics of Fluids, 2021 - pubs.aip.org
Rayleigh–Taylor-instability (RTI) induced flow and mixing are of great importance in both
nature and engineering scenarios. To capture the underpinning physics, tracers are …

Dynamics of multilayer Rayleigh–Taylor instability at moderately high Atwood numbers

P Suchandra, D Ranjan - Journal of Fluid Mechanics, 2023 - cambridge.org
This paper investigates the multilayer Rayleigh–Taylor instability (RTI) using statistically
stationary experiments conducted in a gas tunnel. Employing diagnostics such as particle …

Late-time description of immiscible Rayleigh–Taylor instability: A lattice Boltzmann study

H Liang, Z Xia, H Huang - Physics of Fluids, 2021 - pubs.aip.org
In this paper, the late-time description of immiscible Rayleigh–Taylor instability (RTI) in a
long duct is numerically investigated over a comprehensive range of the Reynolds numbers …

Single-and dual-mode Rayleigh–Taylor instability at microscopic scale

J Ding, P Sun, S Huang, X Luo - Physics of Fluids, 2021 - pubs.aip.org
The microscopic Rayleigh–Taylor instability (RTI) is studied via molecular dynamics (MD)
simulation for single-and dual-mode interfaces under a strong acceleration. The growth …

Late-time quadratic growth in single-mode Rayleigh-Taylor instability

T Wei, D Livescu - Physical Review E—Statistical, Nonlinear, and Soft …, 2012 - APS
The growth of the two-dimensional single-mode Rayleigh-Taylor instability (RTI) at low
Atwood number (A= 0.04) is investigated using Direct Numerical Simulations. The main …

Experimental study of Rayleigh–Taylor instability with a complex initial perturbation

DH Olson, JW Jacobs - Physics of Fluids, 2009 - pubs.aip.org
Experiments have been performed investigating the Rayleigh–Taylor instability initialized
with a complex initial perturbation. The experiments utilize a miscible fluid combination with …