Finite-difference lattice Boltzmann model with flux limiters for liquid-vapor systems

作     者：V. Sofonea A. Lamura G. Gonnella A. Cristea 

作者机构：Dipartimento di Fisica Università di Bari Via Amendola 173 70126 Bari Italy Laboratory for Numerical Simulation and Parallel Computing in Fluid Mechanics Center for Fundamental and Advanced Technical Research Romanian Academy Boulevard Mihai Viteazul 24 300223 Timişoara Romania Istituto Applicazioni Calcolo CNR Sezione di Bari Via Amendola 122∕D 70126 Bari Italy TIRES Center of Innovative Technologies for Signal Detection and Processing and INFM Unità di Bari and INFN Sezione di Bari Via Amendola 173 70126 Bari Italy 

出 版 物：《Physical Review E》 (物理学评论E辑：统计、非线性和软体物理学)

年 卷 期：2004年第70卷第4期

页      面：046702-046702页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

基　　金：IAC-CNR Sezione di Bari University of Bari Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR, (PRIN-2002) 

主　　题：.very low discretized finite-difference spurious LB models liquid-vapor system numerical scheme numerical stability limiters flux limiter Boltzmann equation Conservation equations 

摘      要：In this paper we apply a finite difference lattice Boltzmann model to study the phase separation in a two-dimensional liquid-vapor system. Spurious numerical effects in macroscopic equations are discussed and an appropriate numerical scheme involving flux limiter techniques is proposed to minimize them and guarantee a better numerical stability at very low viscosity. The phase separation kinetics is investigated and we find evidence of two different growth regimes depending on the value of the fluid viscosity as well as on the liquid-vapor ratio.