A numerical study on the coupling of hydrodynamics and orthokinetic agglomeration

被引：33

作者：

Hollander, ED

Derksen, JJ

Bruinsma, OSL

van den Akker, HEA

van Rosmalen, GM

机构：

[1] Delft Univ Technol, Kramers Lab Fys Technol, NL-2628 BW Delft, Netherlands

[2] Delft Univ Technol, Lab Proc Equipment, NL-2628 CA Delft, Netherlands

来源：

CHEMICAL ENGINEERING SCIENCE | 2001年 / 56卷 / 07期

关键词：

orthokinetic; agglomeration; hydrodynamics; turbulence;

D O I：

10.1016/S0009-2509(00)00435-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Numerical studies on orthokinetic agglomeration in a turbulent channel flow and in a stirred tank are presented. By using a lattice Boltzmann scheme to simulate the turbulent flow field, and a Monte Carlo algorithm to solve the particle size distribution, the dependence of the agglomeration rate on the sheer rate and the turbulent transport of particles is investigated. It is found that local Row information is needed to model agglomeration and that a description in terms of a volume-averaged agglomeration rate constant So is inadequate for both geometries. Furthermore. turbulent transport of particles is found to be an important factor in the overall agglomeration rate. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：2531 / 2541

页数：11

共 24 条

[1] Aggregation during precipitation from solution. Kinetics for calcium oxalate monohydrate
Bramley, AS
Hounslow, MJ
Ryall, RL
[J]. CHEMICAL ENGINEERING SCIENCE, 1997, 52 (05) : 747 - 757
[2] Lattice Boltzmann method for fluid flows
Chen, S
Doolen, GD
[J]. ANNUAL REVIEW OF FLUID MECHANICS, 1998, 30 : 329 - 364
[3] Growth and aggregation rates for calcite and calcium oxalate monohydrate
Collier, AP
Hounslow, MJ
[J]. AICHE JOURNAL, 1999, 45 (11) : 2298 - 2305
[4] Large eddy simulations on the flow driven by a Rushton turbine
Derksen, J
Van den Akker, HEA
[J]. AICHE JOURNAL, 1999, 45 (02) : 209 - 221
[5] NUMERICAL-SIMULATION OF FREE CONVECTIVE FLOW USING THE LATTICE-BOLTZMANN SCHEME
EGGELS, JGM
SOMERS, JA
[J]. INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1995, 16 (05) : 357 - 364
[6] Gooch JRV, 1996, AICHE J, V42, P1864
[7] Hiemenz P.C., 1986, PRINCIPLES COLLOID S, V2nd
[8] Hinze J. O, 1975, TURBULENCE
[9] A numerical investigation into the influence of mixing on orthokinetic agglomeration
Hollander, ED
Derksen, JJ
Bruinsma, OSL
van Rosmalen, GM
van den Akker, HEA
[J]. 10TH EUROPEAN CONFERENCE ON MIXING, 2000, : 221 - 229
[10] HOLLANDER ED, 1998, P 1998 ANN AICHE M M, P156

← 1 2 3 →