A comparative study of three turbulence-closure models for the hydrocyclone problem

Delgadillo, J.A.; Rajamani, Raj K.

doi:10.1016/j.minpro.2005.06.007

Cited by 146 publications

(96 citation statements)

References 13 publications

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“…There are numerous numerical studies on the flow and the particle motion in hydrocyclones (Boysan et al, 1982;Brennan et al, 2007;Delgadillo and Rajamani, 2005;1996;He et al, 1999;Hsieh and Rajamani, 1988;Hsieh and Rajamani, 1991;Narasimha et al, 2006a;Narasimha et al, 2005;Nowakowski et al, 2004;Nowakowski et al, 2000;Suasnabar, 2000 andNarasimha 2010) and these studies have used a wide range of turbulence and multiphase models. It is well understood that in future studies, the focus should be to model the three-dimensional flow in a hydrocyclone with at least the Reynolds stress model/LES.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

A semi-mechanistic model of hydrocyclones — Developed from industrial data and inputs from CFD

Narasimha

Mainza

Holtham

et al. 2014

International Journal of Mineral Processing

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Please cite this article as: Narasimha, M., Mainza, A.N., Holtham, P.N., Powell, M.S., Brennan, M.S., A semi-mechanistic model of hydrocyclones -developed from industrial data and inputs from CFD, International Journal of Mineral Processing (2014), doi: 10.1016/j.minpro.2014 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ABSTRACTThe flow behavior in hydrocyclones is extremely complex, leading the designers to rely on empirical equations for predicting cyclone performance. A number of classifying cyclone models have been developed and used in mineral comminution circuit simulators in the past. The problem with these empirical cyclone models is that they cannot be used outside the range of conditions under which they were developed. A semi-mechanistic hydrocyclone model is developed using the dimensionless approach based on both the fluid mechanics concepts from

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Section: Accepted M Manuscriptmentioning

confidence: 99%

A semi-mechanistic model of hydrocyclones — Developed from industrial data and inputs from CFD

Narasimha

Mainza

Holtham

et al. 2014

International Journal of Mineral Processing

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“…The accurate study of flow patterns is essential to design the components of the flow cells, such as flow distributors, net-like spacers employed as turbulence promoters and cell dimensions (i.e., height, width and length) to guarantee homogeneous velocity fields while avoiding undesirable flow features, such as stagnant zones, back-mixing and electrolyte recirculation. 4 The modelling and simulation of fluid hydrodynamics in filter-press electrolysers has recently been performed by computational fluid dynamics (CFD) techniques using commercial and open software, enabling a comprehensive and detailed description of the local hydrodynamic within the flow cells [4][5][6][7][8][9][10][11][12][13][14][15][16]. Different CFD methods have been used to characterize the liquid flow pattern, as is the case of the residence time distribution (RTD).…”

Section: Introductionmentioning

confidence: 99%

Computational fluid dynamics simulations of single-phase flow in a filter-press flow reactor having a stack of three cells

Sandoval

Fuentes

Walsh

et al. 2016

Electrochimica Acta

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“…Many experts and scholars [11][12][13] have adopted the above experimental data to verify the accuracy of the calculation results. In the paper, the post-processing software is adopted to output the radial position based distributions of the tangential velocity (Fig.5(a)) and the axial velocity (Fig.5(b)) at the position 60mm away from the highest point of the cylindrical barrel, and meanwhile such distribution data are analyzed and compared with Hsieh's experimental data.…”

Section: Reliability Analysis Of Resultsmentioning

confidence: 99%

Design and Numerical Analysis of Spiral Pressure Recovery Blades in the Overflow Pipe of the Cyclone Separator

Chen

Sun

2016

MATEC Web of Conferences

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Abstract. Spiral pressure recovery blades which can make the rotational flow convert into direct flow in overflow pipe of the cyclone separator are designed in the overflow pipe. The numerical calculation of the cyclone separator with different blades is carried out by using the Reynolds stress turbulence (RSM) model. Meanwhile, the trend of the total pressure of the inlet and outlet of the cyclone separator is discussed while the blades are inserted at different positions. Results show that the pressure of inlet and overflow outlet obviously reduced when the blade is inserted in the cyclone separator. It can make the inlet total pressure reduced more than 9% and the overflow outlet total pressure reduced more than 50% when four blades are inserted in the cyclone separator. The total pressure of the inlet and overflow outlet is the smallest when blades are inserted in the lowest of the overflow pipe.

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A comparative study of three turbulence-closure models for the hydrocyclone problem

Cited by 146 publications

References 13 publications

A semi-mechanistic model of hydrocyclones — Developed from industrial data and inputs from CFD

A semi-mechanistic model of hydrocyclones — Developed from industrial data and inputs from CFD

Computational fluid dynamics simulations of single-phase flow in a filter-press flow reactor having a stack of three cells

Design and Numerical Analysis of Spiral Pressure Recovery Blades in the Overflow Pipe of the Cyclone Separator

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