7 papers
Discrete Boltzmann model at Burnett level for compressible multicomponent flows under external forces
Demei Li, Huilin Lai, Chuandong Lin +1
This work extends the Burnett-level discrete Boltzmann model (DBM) from single-component to multicomponent compressible flows under external forces, building on the fundamental fra…
A discrete Boltzmann model with state-dependent power-law relaxation time for nonequilibrium transport in compressible flows
Demei Li, Zhongyi He, Huilin Lai +3
Thermodynamic nonequilibrium effects play a central role in momentum and energy transport in compressible flows. In conventional BGK kinetic models, the relaxation time is tak…
Kinetic study of compressible Rayleigh-Taylor instability with time-varying acceleration
Huilin Lai, Chuandong Lin, Hao Xu +3
Rayleigh-Taylor (RT) instability commonly arises in compressible systems with time-dependent acceleration in practical applications. To capture the complex dynamics of such systems…
Multiscale thermodynamic nonequilibrium effects in Kelvin-Helmholtz instability and their relative importance
Zhongyi He, Yanbiao Gan, Bin Yang +3
This study investigates the complex kinetics of thermodynamic nonequilibrium effects (TNEs) and their relative importance during the development of Kelvin-Helmholtz instability (KH…
Investigating the Effect of Relaxation Time on Richtmyer-Meshkov Instability under Reshock Impact: A Two-Component Discrete Boltzmann Method Study
Lingyan Lian, Chuandong Lin, Demei Li +1
The Richtmyer-Meshkov (RM) instability plays an important role in various natural and engineering fields, such as inertial confinement fusion. In this work, the effect of relaxatio…
Effects of reflection distance on Richtmyer-Meshkov instability in the reshock process: A discrete Boltzmann study
Huilin Lai, Chuandong Lin, Demei Li +4
The Richtmyer-Meshkov (RM) instability occurs when a perturbed interface between two fluids undergoes impulsive acceleration due to a shock wave. In this paper, a numerical investi…