Numerical study of particle–fluid flow in hydrocyclones with different body dimensions |
| |
| Affiliation: | 1. Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei City 25137, Taiwan;2. Energy and Opto-Electronic Materials Research Center, Tamkang University, Tamsui, New Taipei City 25137, Taiwan;1. Laboratory for Simulation and Modelling of Particulate Systems, School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia;2. Elsa Consulting Group Pty Ltd., P.O. Box 8100, Mt Pleasant, QLD 4740, Australia;3. Minco Tech Australia Pty Ltd., P.O. Box 142, Cardiff, NSW 2285, Australia;1. Université de Monastir, Ecole Nationale d?Ingénieurs, Unité de Thermique et Thermodynamique des Processus Industriels, Route Ouardanine, 5000 Monastir, Tunisie;2. Université de Monastir, Faculté des Sciences, Département de Chimie, Unité Chimie Appliquée – Environnement, Bvd de l?Environnement, 5000 Monastir, Tunisie;3. Université de Provence, Institut de Mécanique de Marseille, UNIMECA, 60 rue Juliot Curie, Technopôle de Château-Gombert, 13453 Marseille Cedex 13, France |
| |
| Abstract: | This paper presents a numerical study of the gas–liquid–solid multiphase flow in hydrocyclones with different dimensions of body construction, which include the lengths of cylindrical and conical parts and cyclone body size. The turbulent flow of gas and liquid is modelled using the Reynolds stress model, the interface between the liquid and air core is modelled using the volume of fluid multiphase model, and the results are then used in the simulation of particle flow described by the stochastic Lagrangian model. The flow features are examined in terms of flow field, pressure drop, split ratio reported to the underflow, particle trajectories and separation efficiency. The proposed model is first validated by the good agreement between the measured and predicted results, and then used to study the effects of cyclone size and length. The results show that the flow fields in the hydrocyclones with different size and length are different, which results in different performance. A smaller cyclone is helpful to higher efficiency. The cylindrical section plays an inessential role in collecting particles. A long conical section can improve the performance of hydrocyclone considerably. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
