Modeling of the hydrodynamics of the fully developed region in a downer reactor

被引：24

作者：

Li, SG ^{[1
]}

Lin, WG ^{[1
]}

Yao, JZ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China

来源：

POWDER TECHNOLOGY | 2004年 / 145卷 / 02期

基金：

中国国家自然科学基金;

关键词：

downer; EMMS model; cluster; gas-solid velocity; solid concentration; slip velocity;

D O I：

10.1016/j.powtec.2004.04.040

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A mathematical model is developed to describe the hydrodynamics of the fully developed region in a downer reactor. The model is based on the energy-minimization and multi-scale (EMMS) principle. The influence of the friction coefficient, the solid flow rate and the superficial gas velocity on the flow pattern in the downer is simulated. The local solid concentration and gas/solid velocities are predicted. The model results show a good agreement with experimental data in literatures. In addition, cluster size and local slip velocity are discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：73 / 81

页数：9

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