Effects of variable deceleration periods on Rayleigh-Taylor instability with acceleration reversals

D Aslangil, AGW Lawrie, A Banerjee - Physical Review E, 2022 - APS
The dynamics of an interfacial flow that is initially Rayleigh-Taylor unstable but becomes
statically stable for some intermediate period due to the reversal of the externally imposed …

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 …

Lattice Boltzmann study of three-dimensional immiscible Rayleigh—Taylor instability in turbulent mixing stage

B Liu, C Zhang, Q Lou, H Liang - Frontiers of Physics, 2022 - Springer
In this paper, we numerically studied the late-time evolutional mechanism of three-
dimensional (3D) single-mode immiscible Rayleigh—Taylor instability (RTI) by using an …

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 …

Direct numerical simulations of multi-mode immiscible Rayleigh-Taylor instability with high Reynolds numbers

H Liang, X Hu, X Huang, J Xu - Physics of Fluids, 2019 - pubs.aip.org
In this paper, we conduct the high-resolution direct numerical simulations of multimode
immiscible Rayleigh-Taylor instability (RTI) with a low Atwood number (A t= 0.1) using an …

[HTML][HTML] Bubble dynamics of Rayleigh–Taylor flow

W Ni, Y Zhang, Q Zeng, B Tian - AIP Advances, 2020 - pubs.aip.org
A flow of semi-bounded Rayleigh–Taylor instability (SB-RTI) is constructed and simulated to
understand the bubble dynamics of the multi-mode Rayleigh–Taylor mixing (MM-RTM). SB …

Morphological and non-equilibrium analysis of coupled Rayleigh–Taylor–Kelvin–Helmholtz instability

F Chen, A Xu, Y Zhang, Q Zeng - Physics of Fluids, 2020 - pubs.aip.org
In this paper, the coupled Rayleigh–Taylor–Kelvin–Helmholtz instability (RTI, KHI, and
RTKHI, respectively) system is investigated using a multiple-relaxation-time discrete …

Effects of compressibility and Atwood number on the single-mode Rayleigh-Taylor instability

T Luo, J Wang, C Xie, M Wan, S Chen - Physics of fluids, 2020 - pubs.aip.org
In order to study the effect of compressibility on Rayleigh-Taylor (RT) instability, we
numerically simulated the late-time evolution of two-dimensional single-mode RT instability …

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 …

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

S Gauthier - Physica Scripta, 2013 - iopscience.iop.org
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 …