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Recent advances in computational fluid dynamics simulation of flotation: a review
Asia-Pacific Journal of Chemical Engineering ( IF 1.8 ) Pub Date : 2021-09-12 , DOI: 10.1002/apj.2704
Hainan Wang 1, 2 , Xiaokang Yan 1, 2 , Danlong Li 1, 2 , Ruoqian Zhou 1, 2 , Lijun Wang 3 , Haijun Zhang 1, 2 , Qingxia Liu 2
Affiliation  

Flotation process is a multi-phase and multi-scale complex flow system, in which hydrodynamics plays an indispensable role. In recent years, computational fluid dynamics (CFD) numerical simulation has gradually become a powerful tool for studying flotation. In this review, the theories of CFD numerical simulation in flotation research were reviewed, involving various turbulence models and multi-phase flow simulation approaches. An attempt has been made to analyze and discuss the characteristics and applicability of different turbulence models and multi-phase flow simulation approaches in flotation researches in detail. The CFD simulation of two commonly used flotation devices, that is, mechanically agitated flotation machine and flotation column, has been reviewed in detail. The detailed principles, operation, and hydrodynamic of flotation devices were discussed from the viewpoint of CFD. The advances made in CFD simulation for studying flotation process, including particle suspension, bubble dispersion, particle–bubble collision, attachment, and detachment subprocesses have been critically analyzed. Focused analysis was given on the influence mechanism of turbulence on the particle–bubble interactions. Finally, the gaps in the available literature are discussed and potential research directions are also proposed.

中文翻译:

浮选计算流体动力学模拟的最新进展:综述

浮选过程是一个多相、多尺度的复杂流动系统,流体力学在其中起着不可或缺的作用。近年来,计算流体动力学(CFD)数值模拟逐渐成为研究浮选的有力工具。在这篇综述中,回顾了浮选研究中CFD数值模拟的理论,包括各种湍流模型和多相流模拟方法。尝试详细分析和讨论不同湍流模型和多相流模拟方法在浮选研究中的特点和适用性。详细回顾了机械搅拌式浮选机和浮选柱两种常用浮选装置的CFD模拟。详细原理、操作、从CFD的角度讨论了浮选装置的流体动力学。CFD 模拟在研究浮选过程方面取得的进展,包括颗粒悬浮、气泡分散、颗粒-气泡碰撞、附着和分离子过程,已经进行了批判性分析。重点分析了湍流对粒子-气泡相互作用的影响机制。最后,讨论了现有文献中的差距,并提出了潜在的研究方向。重点分析了湍流对粒子-气泡相互作用的影响机制。最后,讨论了现有文献中的差距,并提出了潜在的研究方向。重点分析了湍流对粒子-气泡相互作用的影响机制。最后,讨论了现有文献中的差距,并提出了潜在的研究方向。
更新日期:2021-10-14
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