Study of fluid flow in baffled vessels stirred by a Rushton standard impeller

被引：41
作者：
Chara, Zdenek [1 ]
Kysela, Bohus [1 ]
Konfrst, Jiri [1 ]
Fort, Ivan [2 ]
机构：
[1] Inst Hydrodynam AS CR, Vvi, Prague, Czech Republic
[2] Czech Tech Univ, Fac Mech Engn, Dept Proc Engn, CR-16635 Prague, Czech Republic
来源：
APPLIED MATHEMATICS AND COMPUTATION | 2016年 / 272卷
关键词：
Trailing vortices; Rushton impeller; PIV measuremelits; DES; Numerical simulation; LARGE-EDDY SIMULATIONS; TRAILING VORTICES; TURBULENT-FLOW; TANK; DRIVEN; MODELS; LES;
D O I：
10.1016/j.amc.2015.06.044
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The paper deals with an investigation of velocity field in a tank stirred by a standard Rushton impeller located in the middle of the tank height. Tune-resolved PIV method was used to measure the angle-resolved velocity field near the impeller blades in horizontal and vertical planes as well. Based on a simplified criterion lambda(2) < 0 the location, size and strength of trailing vortices behind the blades were determined. The measurements were carried out in two tanks of diameters T = 0.3 and 0.4 m and at mixing Reynolds numbers in a range 3.3-4.9 x 10(4). Simultaneously a detached eddy simulation (DES) was performed for the tank diameter T 0.3 m and rotation speed 200 rpm (Re-M 3.3 < 104). The simulation results are compared with the experimental data. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码：614 / 628
页数：15
相关论文
共 33 条
[1]   Large-eddy simulation of turbulent flow in an unbaffled stirred tank driven by a Rushton turbine [J].
Alcamo, R ;
Micale, G ;
Grisafi, F ;
Brucato, A ;
Ciofalo, M .
CHEMICAL ENGINEERING SCIENCE, 2005, 60 (8-9) :2303-2316
[2]   Sliding mesh simulation of laminar flow in stirred reactors [J].
Bakker, A ;
Laroche, RD ;
Wang, MH ;
Calabrese, RV .
CHEMICAL ENGINEERING RESEARCH & DESIGN, 1997, 75 (A1) :42-44
[3]   Modelling of turbulence in stirred vessels using large eddy simulation [J].
Bakker, A ;
Oshinowo, LM .
CHEMICAL ENGINEERING RESEARCH & DESIGN, 2004, 82 (A9) :1169-1178
[4]   Semianalytical Characterization of Turbulence from Radial Impellers, with Experimental and Numerical Validation [J].
Ben-Nun, Ronen ;
Sheintuch, Moshe ;
Kysela, Bohus ;
Konfrst, Jiri ;
Fort, Ivan .
AICHE JOURNAL, 2015, 61 (04) :1413-1426
[5]  
Chara Z., 2014, ICNAAM 2014
[6]   A GENERAL CLASSIFICATION OF 3-DIMENSIONAL FLOW-FIELDS [J].
CHONG, MS ;
PERRY, AE ;
CANTWELL, BJ .
PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1990, 2 (05) :765-777
[7]   CFD prediction of fluid flow and mixing in stirred tanks: Numerical issues about the RANS simulations [J].
Coroneo, M. ;
Montante, G. ;
Paglianti, A. ;
Magelli, F. .
COMPUTERS & CHEMICAL ENGINEERING, 2011, 35 (10) :1959-1968
[8]   Trailing vortices generated by a Rushton turbine: Assessment of URANS and large Eddy simulations [J].
Delafosse, A. ;
Morchain, J. ;
Guiraud, P. ;
Line, A. .
CHEMICAL ENGINEERING RESEARCH & DESIGN, 2009, 87 (4A) :401-411
[9]   Large eddy simulations on the flow driven by a Rushton turbine [J].
Derksen, J ;
Van den Akker, HEA .
AICHE JOURNAL, 1999, 45 (02) :209-221
[10]   Three-dimensional LDA measurements in the impeller region of a turbulently stirred tank [J].
Derksen, JJ ;
Doelman, MS ;
Van den Akker, HEA .
EXPERIMENTS IN FLUIDS, 1999, 27 (06) :522-532
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