10 papers
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 tak…
Enhanced oil recovery in reservoirs via diffusion-driven flooding: Experimental insights and material balance modeling
Xiaoyi Zhang, Rui Xu, Qing Zhao +3
flooding is central to carbon utilization technologies, yet conventional waterflooding models fail to capture the complex interactions between CO and formation…
Stability analysis of discrete Boltzmann simulation for supersonic flows: Influencing factors, coupling mechanisms and optimization strategies
Yanhong Wu, Yanbiao Gan, Aiguo Xu +1
Supersonic flow simulations face challenges in trans-scale modeling, numerical stability, and complex field analysis due to inherent nonlinear, nonequilibrium, and multiscale chara…
Droplet coalescence kinetics: Coalescence mechanisms and thermodynamic non-equilibrium effects under isothermal and non-isothermal conditions
Guanglan Sun, Yanbiao Gan, Bin Yang +2
This study investigates the droplet coalescence mechanisms and the interplay between various thermodynamic non-equilibrium (TNE) effects under isothermal and non-isothermal conditi…
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…