High-resolution Eulerian simulation of RMS of solid volume fraction fluctuation and particle clustering characteristics in a CFB riser

被引：44

作者：

Wang, Junwu ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

CHEMICAL ENGINEERING SCIENCE | 2008年 / 63卷 / 13期

基金：

中国国家自然科学基金;

关键词：

fluidization; multiphase flow; powder technology; hydrodynamics; RMS of solid volume fraction fluctuation; particle cluster;

D O I：

10.1016/j.ces.2008.03.041

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

High-resolution Eulerian simulation has recently emerged as an effective approach for studying the mechanics of heterogeneous gas-solid flow. In this study, it is used to study the characteristics of RMS of solid volume fraction fluctuation and particle clustering structures in a CFB riser. It was shown that the experimentally founded RMS of solid volume fraction fluctuation variation with local mean solid volume fraction can be well predicted and the experimentally measured particle clustering characteristics, including the solid volume fraction inside cluster, cluster time fraction, cluster frequency, cluster existence time, vertical and horizontal cluster velocity and vertical cluster size, can be qualitatively predicted by high-resolution Eulerian simulation. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：3341 / 3347

页数：7