January 2020
Volume 72    Issue 1

Experimental and numerical investigations of the fluid flow in a hydroclyclone with an air core

Ke, Renjie; Shingote, Chinmay; Kadambi, Jaikrishnan R.; Furlan, John; Visintainer, Robert

ABSTRACT:
Full-text paper: Mining, Metallurgy & Exploration, https://doi.org/10.1007/s42461-019-00131-6
Keywords: Computational fluid dynamics (CFD), Hydrocyclone, Particle image velocimetry (PIV), Reynolds stress model (RSM), Large eddy simulation (LES) 
 
Hydrocyclone separators are some of the most widely used instruments in a variety of industrial applications. Their major functions are to sort, classify and separate solid particles and liquid droplets within a multiphase flow system. Research studies employing both experimental and numerical methods recognize that the performance of a cyclone is related to its geometric dimensions as well as the inner flow pattern. Although many successes have been achieved over the past years, the majority of investigations only focused on the simplified design of cyclone geometry and on single-phase flow. Therefore, this study set out to investigate the flow field in a new-design hydrocyclone and used particle image velocimetry (PIV) to explore the complex swirling flow behavior inside the cyclone within an air core. The flow field inside the cyclone was also studied by computational fluid dynamics (CFD) simulation using a commercial CFD package. Different turbulent models were tested in this study with a moderate-size mesh, and the interface of liquid phase and air phase was predicted by the volume of fluid (VOF) model.
 

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