文献类型：期刊文献

英文题名：Three-dimensional discrete particle model for gas-solid fluidized beds on unstructured mesh

作者：Wu, C. L.[1];Berrouk, A. S.[2];Nandakumar, K.[2]

机构：[1]Guangdong Ocean Univ, Coll Engn, Zhanjiang 524088, Peoples R China;[2]Petr Inst, Dept Chem Engn, Abu Dhabi, U Arab Emirates

年份：2009

卷号：152

期号：2-3

起止页码：514

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：SCI-EXPANDED(收录号：WOS:000274348500029)、、EI(收录号：20092812176980)、Scopus(收录号：2-s2.0-67649610681)、WOS

基金：This work was partly supported by a grant from the Guangdong Natural Science Foundation.

语种：英文

外文关键词：Fluidization; Multiphase flow; Computation efficiency; Hard-sphere model; Unstructured mesh

外文摘要：A robust three-dimensional discrete particle model (3D DPM) for unstructured meshes is presented to model the gas-solid flows in fluidized beds. The finite volume method is used to discretize the governing equations of the gas phase. Inter-particle interactions are taken into account through the hard-sphere approach. The numerical models for the solid phase were implemented as a separate module in FLUENT by overcoming some limitations of the user-defined function approach. A multifaceted numerical strategy was developed to enhance the computational efficiency. Simulation results demonstrate the ability of the model to capture many important characteristics such as bubbling, spouting, particle clustering and core-annulus flow structures in gas-solid systems at specified operating conditions. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.