Numerical simulation of turbulent gas-particle flow in a 90° bend:: Eulerian-Eulerian approach

被引：20
|
作者：
Mohanarangam, K. [1 ]
Tian, Z. F. [1 ]
Tu, J. Y. [1 ]
机构：
[1] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Bundoora, Vic 3083, Australia
来源：
COMPUTERS & CHEMICAL ENGINEERING | 2008年 / 32卷 / 03期
基金：
澳大利亚研究理事会;
关键词：
dilute gas-particle flows; 90 degrees bend; Eulerian two-fluid model;
D O I：
10.1016/j.compchemeng.2007.04.001
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A numerical investigation into the physical characteristics of dilute gas-particle flows over a square-sectioned 90 degrees bend is reported. The modified Eulerian two-fluid model is employed to predict the gas-particle flows. The computational results using both the methods are compared with the LDV results of Kliafas and Holt, wherein particles with corresponding diameter of 50 mu m are simulated with a flow Reynolds number of 3.47 x 10(5). RNG-based kappa-epsilon model is used as the turbulent closure, wherein additional transport equations are solved to account for the combined gas-particle interactions and turbulence kinetic energy of the particle phase turbulence. Moreover, using the current turbulence modelling formulation, a better understanding of the particle and the combined gas-particle turbulent interaction has been shown. The Eulerian-Eulerian model used in the current study was found to yield good agreement with the measured values. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：561 / 571
页数：11
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