期刊
CHEMICAL ENGINEERING SCIENCE
卷 137, 期 -, 页码 590-600出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2015.07.002
关键词
Agglomeration; Multiphase flow; Liquid bridge; Hard-sphere model; Population balance modelling; Collision efficiency
资金
- Norwegian-Estonian Research Co-operation Programme [EMP230]
An understanding of agglomeration in multiphase flows by means of capillary bridges is important for various technical applications. One of the key parameters that describe the process is the probability of agglomeration, usually termed collision efficiency. In the present paper we study the collision efficiency by using Eulerian-Lagrangian computational fluid dynamics (CFD) modelling. The analysis evaluates the dependence of the collision efficiency on various dimensionless parameters that describe the process, including, among others: Reynolds number, bridge capillary number and wetting angle. In addition we further develop a theoretical expression for a priori engineering estimates of the collision efficiency. This expression is validated against numerical, theoretical and experimental results. (C) 2015 Elsevier Ltd. All rights reserved.
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