Coarse-grained computations of demixing in dense gas-fluidized beds

作     者：Sung Joon Moon S. Sundaresan I. G. Kevrekidis 

作者机构：[]Department of Chemical Engineering & Program in Applied and Computational Mathematics Princeton University Princeton New Jersey 08544 USA 

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：2007年第75卷第5期

页      面：051309-051309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] 

主　　题：DISCRETE PARTICLE SIMULATION EQUATION-FREE MIXTURES DYNAMICS SYSTEMS POWDERS MODEL 

摘      要：We use an “equation-free, coarse-grained computational approach to accelerate molecular dynamics-based computations of demixing (segregation) of dissimilar particles subject to an upward gas flow (gas-fluidized beds). We explore the coarse-grained dynamics of these phenomena in gently fluidized beds of solid mixtures of different densities, typically a slow process for which reasonable continuum models are currently unavailable.