A new mechanism for size separation of particles immersed in a fluid

被引：0
|
作者：
Orland R.Z. [1 ]
Katoshevski D. [2 ]
机构：
[1] Department of Biotechnology Engineering, Faculty of Engineering, Ben Gurion University of the Negev
[2] Unit of Environmental Engineering, Faculty of Engineering, Ben Gurion University of the Negev, POB 653, Beer Sheva
来源：
International Journal of Engineering Systems Modelling and Simulation | 2017年 / 9卷 / 02期
关键词：
Agglomeration; Oscillating flow; Particle grouping;
D O I：
10.1504/IJESMS.2017.083241
中图分类号：
学科分类号：
摘要：
Work presented deals with a new mechanism for particle size-separation based on differential grouping induced by a controlled oscillating flow field. This separation by size may be used for coagulation of like-sized particles. Flow oscillations are induced by a pulsating sphere. The dynamics of particles immersed in such a flow field and their trajectories are analysed mathematically based on perturbation analysis. It is shown that in proximity to the sphere, particle trajectories display strong dependence on particle size (through particle Stokes number), far more so than on initial position. Grouping behaviour is observed under specific operating conditions, and this suggests feasibility of applications in filtration systems, as well as for size-based separation. Copyright © 2017 Inderscience Enterprises Ltd.
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页码：120 / 125
页数：5
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