A numerical investigation of bubble dynamics in a ferrofluid by improved multicomponent multiphase pseudopotential lattice Boltzmann model coupled with magnetic field solver

2021 ◽  
Vol 33 (9) ◽  
pp. 097110
Author(s):  
Yichen Huang ◽  
Ying Zhang ◽  
Meng Xu ◽  
Jie Lei ◽  
Zhihao Li ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Numerical Investigation ◽  
Lattice Boltzmann ◽  
Bubble Dynamics ◽  
Lattice Boltzmann Model ◽  
Boltzmann Model

AMADEUS Project and Microscopic Simulation of Boiling Two-Phase Flow by the Lattice-Boltzmann Method

1997 ◽  
Vol 08 (04) ◽  
pp. 843-858 ◽  
Author(s):  
Yasuyoshi Kato ◽  
Koji Kono ◽  
Takeshi Seta ◽  
Daniel Martínez ◽  
Shiyi Chen
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Lattice Boltzmann ◽  
Bubble Dynamics ◽  
Two Phase Flow ◽  
Phase Interface ◽  
Lattice Boltzmann Model ◽  
Phase Flow ◽  
Two Phase ◽  
Boltzmann Model

A two-dimensional lattice-Boltzmann model with a hexagonal lattice is developed to simulate a boiling two-phase flow microscopically. Liquid-gas phase transition and bubble dynamics, including bubble formation, growth and deformation, are modeled by using an interparticle potential based on the van der Waals equation of state. Thermohydrodynamics is incorporated into the model by adding extra velocities to define temperature. The lattice-Boltzmann model is solved by a finite difference scheme so that numerical stability can be ensured at large discontinuity across the liquid-gas phase boundary and the narrow phase interface thickness can be attained. It is shown from numerical simulations that the model has the ability to reproduce phase transition, bubble dynamics and thermohydrodynamics while assuring numerical instability and narrow phase interface.

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