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 the initial perturbations on the Rayleigh—Taylor—Kelvin—Helmholtz instability system

F Chen, A Xu, Y Zhang, Y Gan, B Liu, S Wang - Frontiers of Physics, 2022 - Springer
The effects of initial perturbations on the Rayleigh—Taylor instability (RTI), Kelvin—
Helmholtz instability (KHI), and the coupled Rayleigh—Taylor—Kelvin—Helmholtz instability …

Nonlinear effects in the combined Rayleigh-Taylor/Kelvin-Helmholtz instability

BJ Olson, J Larsson, SK Lele, AW Cook - Physics of Fluids, 2011 - pubs.aip.org
The combined Rayleigh-Taylor/Kelvin-Helmholtz (RT/KH) instability is studied in the early
nonlinear regime. Specifically, the effect of adding shear to a gravitationally unstable …

Nonequilibrium thermohydrodynamic effects on the Rayleigh-Taylor instability in compressible flows

H Lai, A Xu, G Zhang, Y Gan, Y Ying, S Succi - Physical Review E, 2016 - APS
The effects of compressibility on Rayleigh-Taylor instability (RTI) are investigated by
inspecting the interplay between thermodynamic and hydrodynamic nonequilibrium …

Discrete Boltzmann modeling of Rayleigh-Taylor instability: Effects of interfacial tension, viscosity, and heat conductivity

J Chen, A Xu, D Chen, Y Zhang, Z Chen - Physical Review E, 2022 - APS
Abstract The two-dimensional Rayleigh-Taylor instability (RTI) in compressible flow with
intermolecular interactions is probed via the discrete Boltzmann method. The effects of …

Specific heat ratio effects of compressible Rayleigh—Taylor instability studied by discrete Boltzmann method

L Chen, H Lai, C Lin, D Li - Frontiers of Physics, 2021 - Springer
Rayleigh-Taylor (RT) instability widely exists in nature and engineering fields. How to better
understand the physical mechanism of RT instability is of great theoretical significance and …

[HTML][HTML] Kelvin-Helmholtz instability and roll-up

C Matsuoka - Scholarpedia, 2014 - scholarpedia.org
Kelvin-Helmholtz Instability (KHI)(Helmoltz 1868, Kelvin 1871) is a hydrodynamic instability
in which immiscible, incompressible, and inviscid fluids are in relative and irrotational …

Viscosity, heat conductivity, and Prandtl number effects in the Rayleigh–Taylor instability

F Chen, AG Xu, GC Zhang - Frontiers of Physics, 2016 - Springer
Abstract The two-dimensional Rayleigh–Taylor instability problem is simulated with a
multiple-relaxation-time discrete Boltzmann model with a gravity term. Viscosity, heat …

[HTML][HTML] Knudsen number effects on two-dimensional Rayleigh–Taylor instability in compressible fluid: Based on a discrete Boltzmann method

H Ye, H Lai, D Li, Y Gan, C Lin, L Chen, A Xu - Entropy, 2020 - mdpi.com
Based on the framework of our previous work [HL Lai et al., Phys. Rev. E, 94, 023106
(2016)], we continue to study the effects of Knudsen number on two-dimensional Rayleigh …

Nonequilibrium and morphological characterizations of Kelvin–Helmholtz instability in compressible flows

YB Gan, AG Xu, GC Zhang, CD Lin, HL Lai, ZP Liu - Frontiers of Physics, 2019 - Springer
We investigate the effects of viscosity and heat conduction on the onset and growth of Kelvin–
Helmholtz instability (KHI) via an efficient discrete Boltzmann model. Technically, two …