93 citations · 231 across the 18 of their papers we have counts for
19 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…
High-order thermodynamic nonequilibrium in three-dimensional compressible flows: Kinetic moment closure and multigradient coupling
Huilin Lai, Qinghong Guo, Yanbiao Gan +3
High-order thermodynamic nonequilibrium (TNE) in three-dimensional compressible flows reflects the breakdown of low-order kinetic moment closure in strong-gradient regions. Using C…
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 take…
Burnett-level multi-relaxation-time central-moment discrete Boltzmann modeling of reactive flows
Qingbin Wu, Chuandong Lin, Huilin Lai
A multi-relaxation-time central-moment discrete Boltzmann method (CDBM) is developed for compressible reactive flows, incorporating the effects of chemical reactions. The Chapman--…
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…
Burnett-level discrete Boltzmann modeling of compressible flows under force
Suni Chen, Chuandong Lin, Demei Li +1
In this paper, a Burnett-level discrete Boltzmann model (DBM) is proposed for the compressible flow in a force field, and a discrete velocity set with 25 velocities is constructed…
Thermodynamic nonequilibrium effects in three-dimensional high-speed compressible flows: Multiscale modeling and simulation via the discrete Boltzmann method
Qinghong Guo, Yanbiao Gan, Bin Yang +3
Three-dimensional (3D) high-speed compressible flow is a typical nonlinear, nonequilibrium, and multiscale complex flow. Traditional fluid mechanics models, based on the quasi-cont…
Discrete Boltzmann model with split collision for nonequilibrium reactive flows
Chuandong Lin, Kai H. Luo, Huilin Lai
A multi-relaxation-time discrete Boltzmann model (DBM) with split collision is proposed for both subsonic and supersonic compressible reacting flows, where chemical reactions take…
Discrete Boltzmann multi-scale modeling of non-equilibrium multiphase flows
Yanbiao Gan, Aiguo Xu, Huilin Lai +3
The aim of this paper is twofold: the first is to formulate and validate a multi-scale discrete Boltzmann method (DBM) based on density functional kinetic theory for thermal multip…
PoissonSeg: Semi-Supervised Few-Shot Medical Image Segmentation via Poisson Learning
Xiaoang Shen, Guokai Zhang, Huilin Lai +3
The application of deep learning to medical image segmentation has been hampered due to the lack of abundant pixel-level annotated data. Few-shot Semantic Segmentation (FSS) is a p…
Specific heat ratio effects of compressible Rayleigh-Taylor instability studied by discrete Boltzmann method
Lu Chen, Huilin Lai, Chuandong Lin +1
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 significa…
Multiple-relaxation-time discrete Boltzmann modeling of multicomponent mixture with nonequilibrium effects
Chuandong Lin, Kai H. Luo, Aiguo Xu +2
A multiple-relaxation-time discrete Boltzmann model (DBM) is proposed for multicomponent mixtures, where compressible, hydrodynamic, and thermodynamic nonequilibrium effects are ta…
Delineation of the flow and mixing induced by Rayleigh-Taylor instability through tracers
Ge Zhang, Aiguo Xu, Dejia Zhang +3
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 introduc…
Nonequilibrium and morphological characterizations of Kelvin-Helmholtz instability in compressible flows
Yanbiao Gan, Aiguo Xu, Guangcai Zhang +3
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, tw…
Three-dimensional discrete Boltzmann models for compressible flows in and out of equilibrium
Yanbiao Gan, Aiguo Xu, Guangcai Zhang +1
We present a series of three-dimensional discrete Boltzmann (DB) models for compressible flows in and out of equilibrium. The key formulating technique is the construction of discr…
Thermo-hydrodynamic non-equilibrium effects on compressible Rayleigh-Taylor instability
Huilin Lai, Aiguo Xu, Guangcai Zhang +3
The effects of compressibility on Rayleigh-Taylor instability (RTI) are investigated by inspecting the interplay between thermodynamic and hydrodynamic non-equilibrium phenomena (T…