LATTICE BOLTZMANN METHOD SIMULATIONS FOR MULTIPHASE FLUIDS WITH REDICH-KWONG EQUATION OF STATE

作     者：WEI Yi-kun QIAN Yue-hong WEI Yi-kun, QIAN Yue-hong Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072 Shanghai, China

作者机构：Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 ShanghaiChina 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2011年第23卷第6期

页      面：814-819页

核心收录：

学科分类：080704[工学-流体机械及工程] 07[理学] 080103[工学-流体力学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0807[工学-动力工程及工程热物理] 0703[理学-化学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Ministry of Education in China(Grant No. IRT0844) the Shanghai Science and Technology Commission Project of Excellent Academic Leaders (Grant No.11XD1402300) 

主　　题：Redlich-Kwong equation of state lattice Bhatager-Gross-Krook models numerical simulations phase transition 

摘      要：In this article we state that the compression factor of the Redlich-Kwong Equation Of State （EOS） is smaller than that of van der Waals EOS. The Redlich-Kwong EOS is in better agreement with experimental data on coexistence curves at the critical point than the van der Waals EOS. We implement the Redlich-Kwong EOS in the Lattice Boltzmann Method （LBM） simulations via a pseudo-potential approach. We propose a new force, which can obtain computational stationary and reach larger density ratio. As a result, multi-phase flows with large density ratio （up to 1012 in the stationary case） can be simulated. We perform four numerical simulations, which are respectively related to single liquid droplet, vapor-liquid separation, surface tension and liquid coalescence of two droplets.