An Extended Pseudo Potential Multiphase Lattice Boltzmann Model with Variable Viscosity Ratio

2021 ◽  
pp. 337-348
Author(s):  
Mahmud Ashrafizaadeh ◽  
Farshad Gharibi ◽  
Seyyed Meysam Khatoonabadi
Keyword(s):  
Lattice Boltzmann ◽  
Viscosity Ratio ◽  
Variable Viscosity ◽  
Lattice Boltzmann Model ◽  
Boltzmann Model ◽  
Pseudo Potential

Lattice Boltzmann Simulation of Nucleation

2003 ◽  
Author(s):  
Takeshi Seta ◽  
Kenichi Okui ◽  
Eisyun Takegoshi
Keyword(s):  
Lattice Boltzmann ◽  
Lattice Boltzmann Model ◽  
Two Phase Flows ◽  
Two Phase ◽  
Lattice Boltzmann Simulation ◽  
Expansion Procedure ◽  
Theoretical Predictions ◽  
Boltzmann Method ◽  
Boltzmann Model ◽  
Pseudo Potential

We propose a lattice Boltzmann model capable of simulating nucleation. This LBM modifies a pseudo-potential so that it recovers a full set of hydrodynamic equations for two-phase flows based on the van der Waals-Cahn-Hilliard free energy theory through the Chapman-Enskog expansion procedure. Numerical measurements of thermal conductivity and of surface tension agree well with theoretical predictions. Simulations of phase transition, nucleation, pool boiling are carried out. They demonstrate that the model is applicable to two-phase flows with thermal effects. Using finite difference Lattice Boltzmann method ensures numerical stability of the scheme.

Sign in / Sign up

Export Citation Format

Share Document