Large-eddy simulation of turbulent flow in an unbaffled stirred tank driven by a Rushton turbine

被引：118
|
作者：
Alcamo, R
Micale, G
Grisafi, F
Brucato, A
Ciofalo, M
机构：
[1] Univ Palermo, Dipartimento Ingn Nucl, I-90128 Palermo, Italy
[2] Univ Palermo, Dipartimento Ingn Chim Proc & Mat, I-90128 Palermo, Italy
来源：
CHEMICAL ENGINEERING SCIENCE | 2005年 / 60卷 / 8-9期
关键词：
unbaffled stiffed vessel; turbulence; CFD; large-eddy simulation;
D O I：
10.1016/j.ces.2004.11.017
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The turbulent flow field generated in an unbaffled stirred tank by a Rushton turbine was computed by large-eddy simulation (LES). The Smagorinsky model was used to model the unresolved, or sub-grid, scales. A general purpose CFD code was appropriately modified in order to allow the computation of the sub-grid viscosity and to perform statistics on the computed results. The numerical predictions were compared with the literature results for comparable configurations and with experimental data obtained using particle image velocimetry. A very good agreement was found as regards both time-averaged resolved fields and turbulence quantities. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2303 / 2316
页数：14
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