7 papers
A diffuse-interface model for N-phase flows with liquid-solid phase change
Jiangxu Huang, Chengjie Zhan, Zhenhua Chai +2
In this work, we first propose a diffuse interface model for simulating N phase flows with solid liquid phase change. In this model, a phase field approach is adopted to capture mu…
A unified MRT-LB framework for Navier-Stokes and nonlinear convection-diffusion equations and beyond: moment equations, auxiliary moments, multispeed lattices, and Hermite matrices
Baochang Shi, Xiaolei Yuan, Zhenhua Chai
We develop a unified multi-relaxation-time lattice Boltzmann (MRT-LB) framework based on discrete Hermite polynomials (Hermite matrices) for the Navier-Stokes equations (NSEs) and…
Diffuse-interface modeling and simulation of the freezing of binary fluids with the Marangoni effect
Jiangxu Huang, Zhenhua Chai, Xi Liu +1
This paper proposes a diffuse-interface model for simulating gas-liquid-solid multiphase flows involving solid-liquid phase change, solute transport, and the Marangoni effect. In t…
A diffuse-interface method for the containerless freezing of three-phase flows in complex geometries
Jiangxu Huang, Chengjie Zhan, Zhenhua Chai +1
In this work, we first propose a diffuse-interface model for the freezing processes of three-phase flows in complex geometries, and the core of the model to intergratge the Navier-…
Electrohydrodynamics of a pair of leaky dielectric droplets on the solid substrate: A lattice Boltzmann study
Jiang Peng, Xi Liu, Zhenhua Chai +2
In this work, the electrohydrodynamics of a pair of leaky dielectric droplets on a solid substrate is investigated by the phase-field-based lattice Boltzmann method. Different from…
Equilibrium-distribution-function based mesoscopic finite-difference methods for partial differential equations: Modeling and Analysis
Baochang shi, Rui Du, Zhenhua Chai
In this paper, based on the idea of direct discrete modeling (DDM) with equilibrium distribution functions (EDFs), we develop a general framework of the mesoscopic numerical method…