Discrete Boltzmann multi-scale modelling of non-equilibrium multiphase flows

Y Gan, A Xu, H Lai, W Li, G Sun… - Journal of Fluid Mechanics, 2022 - cambridge.org
The aim of this paper is twofold: the first aim is to formulate and validate a multi-scale
discrete Boltzmann method (DBM) based on density functional kinetic theory for thermal …

Discrete Boltzmann modeling of high-speed compressible flows with various depths of non-equilibrium

D Zhang, A Xu, Y Zhang, Y Gan, Y Li - Physics of Fluids, 2022 - pubs.aip.org
The non-equilibrium high-speed compressible flows present wealthy applications in
engineering and science. With the deepening of Thermodynamic Non-Equilibrium (TNE) …

Specific-heat ratio effects on the interaction between shock wave and heavy-cylindrical bubble: Based on discrete Boltzmann method

D Zhang, A Xu, J Song, Y Gan, Y Zhang, Y Li - Computers & Fluids, 2023 - Elsevier
Specific-heat ratio effects on the interaction between a planar shock wave and a two-
dimensional heavy-cylindrical bubble are studied by the discrete Boltzmann method …

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 …

Viscous effects on morphological and thermodynamic non-equilibrium characterizations of shock–bubble interaction

D Zhang, A Xu, Y Gan, Y Zhang, J Song, Y Li - Physics of Fluids, 2023 - pubs.aip.org
ABSTRACT A two-fluid discrete Boltzmann model with a flexible Prandtl number is
formulated to study the shock–bubble interaction (SBI). This paper mainly focuses on the …

The influences of acceleration on compressible Rayleigh–Taylor instability with non-equilibrium effects

H Lai, C Lin, Y Gan, D Li, L Chen - Computers & Fluids, 2023 - Elsevier
Rayleigh–Taylor (RT) instability is a classical interface instability of great importance in
nature and engineering fields. In this paper, the influences of acceleration on the …

[HTML][HTML] Non-equilibrium characteristics of mass and heat transfers in the slip flow

Y Zhang, A Xu, F Chen, C Lin, ZH Wei - AIP Advances, 2022 - pubs.aip.org
Slip flow is a common phenomenon in micro-/nano-electromechanical systems. It is well
known that the mass and heat transfers in slip flow show many unique behaviors, such as …

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 …

Plasma kinetics: Discrete Boltzmann modeling and Richtmyer–Meshkov instability

J Song, A Xu, L Miao, F Chen, Z Liu, L Wang… - Physics of …, 2024 - pubs.aip.org
In this paper, a discrete Boltzmann method (DBM) for plasma kinetics is proposed and
further used to investigate the non-equilibrium characteristics in Orszag–Tang (OT) vortex …