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

被引：39

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

页码：614 / 628

页数：15

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