Large eddy simulation of flow in stirred vessels

被引：2

作者：

Revstedt, J ^{[1
]}

Fuchs, L ^{[1
]}

机构：

[1] Lund Inst Technol, Div Fluid Mech, SE-22100 Lund, Sweden

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2002年 / 25卷 / 04期

关键词：

D O I：

10.1002/1521-4125(200204)25:4<443::AID-CEAT443>3.0.CO;2-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Large eddy simulations (LES) of the flow in stirred tanks were performed. One of the advantages with LES is that it can provide details of the flow field that cannot be obtained with so-called Reynolds averaged equations and the corresponding models. Simulations were done on both single and multi-impeller systems. Both Rushton and curved-blade radial impellers were studied in both a fixed and a rotating frame of reference. The results show that the periodicity is much stronger and present in a larger part of the vessel for the Rushton turbine than for a curved-blade turbine.

引用

页码：443 / 446

页数：4

共 14 条

[1] 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

[2] Direct and large-eddy simulation of turbulent fluid flow using the lattice-Boltzmann scheme [J].

Eggels, JGM .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1996, 17 (03) :307-323

[3]

FUCHS L, 1984, NOTES NUMERICAL METH, V10, P52

[4] A DYNAMIC SUBGRID-SCALE EDDY VISCOSITY MODEL [J].

GERMANO, M ;

PIOMELLI, U ;

MOIN, P ;

CABOT, WH .

PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1991, 3 (07) :1760-1765

[5]

GULLBRAND J, 1998, 983317 AIAA

[6] PREDICTION OF THE 3-DIMENSIONAL TURBULENT-FLOW IN STIRRED TANKS [J].

KRESTA, SM ;

WOOD, PE .

AICHE JOURNAL, 1991, 37 (03) :448-460

[7] Turbulence properties of the impeller stream of a Rushton turbine [J].

Lee, KC ;

Yianneskis, M .

AICHE JOURNAL, 1998, 44 (01) :13-24

[8] ON THE PROPERTIES OF SIMILARITY SUBGRID-SCALE MODELS AS DEDUCED FROM MEASUREMENTS IN A TURBULENT JET [J].

LIU, SW ;

MENEVEAU, C ;

KATZ, J .

JOURNAL OF FLUID MECHANICS, 1994, 275 :83-119

[9] Influence of impeller type on the flow structure in a stirred reactor [J].

Revstedt, J ;

Fuchs, L ;

Kovács, T ;

Trägårdh, C .

AICHE JOURNAL, 2000, 46 (12) :2373-2382

[10] Large eddy simulations of the turbulent flow in a stirred reactor [J].

Revstedt, J ;

Fuchs, L ;

Trägårdh, C .

CHEMICAL ENGINEERING SCIENCE, 1998, 53 (24) :4041-4053

← 1 2 →