CFD modelling of hydrocyclone—prediction of cut size

Narasimha, M.; Sripriya, R.; Banerjee, P. K.

doi:10.1016/j.minpro.2004.04.008

Cited by 126 publications

(55 citation statements)

References 9 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 correct choice of turbulence model is a critical factor in capturing the anisotropic turbulent features of this flow, which is further complicated by the high streamline curvature. A widely used closure for the Reynolds stress is the k-ε model (Dai et al, 1999;Petty and Parks, 2001;Narasimha et al, 2005). The problem with this turbulence model is that it assumes isotropic turbulence and this condition appears not to hold for the flow inside a hydrocyclone.…”

Section: Cfd Simulationsmentioning

confidence: 99%

“…Recently, Computational Fluid Dynamics Techniques (CFD) have been concomitantly and alternatively used in cyclone and hydrocyclone studies (Medronho et al, 2005;Narasimha et al, 2005;Mainza et al, 2006;Bhaskar et al 2007;Vieira et al 2007). This technique is a versatile means to study the fluid dynamics of many physical systems and it has been widely used in engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Influence of geometric dimensions on the performance of a filtering hydrocyclone: an experimental and cfd study

Oliveira

Almeida

Vieira

et al. 2009

Braz. J. Chem. Eng.

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-Filtering hydrocyclone is a device that was developed and patented by the Particulate System Research Group at the Federal University of Uberlandia. This equipment consists of a hydrocyclone whose conical section is replaced by a conical filtering wall. Thus, during the operation of these devices, besides the underflow and overflow streams, there is another stream of liquid, resulting from the filtrate produced in the porous cone. In the present work, the influence of some geometric variables of a filtering hydrocyclone was analyzed by an experimental and CFD study. The geometric variables analyzed were underflow orifice diameter (D U ) and vortex finder length (ℓ). Data from a conventional hydrocyclone of the same configuration were also obtained. The results indicated that the performance of hydrocyclones is significantly influenced by the conical filtering wall. The incorporation of the filtering medium decreased the Euler numbers and increased the total efficiency of the hydrocyclones. Depending on the specific functions of the separator (as a classifier or concentrator) the best values of D U and ℓ were also found for the filtering hydrocyclone.

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“…Die Amplitude der Schwankungsbewegung des Teilchens entspricht dabei dem ersten Term in Gl. (10). Geht man nun zum Quadrat dieser Amplitude über, so erhält man folgenden Ausdruck für den Koeffizienten der turbulenten Teilchendiffusion:…”

Section: Turbulente Diffusionunclassified

CFD – basierte Modellierung der Hydrozyklonklassierung

Neesse

Dück

2007

Chemie Ingenieur Technik

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CFD modelling of hydrocyclone—prediction of cut size

Cited by 126 publications

References 9 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

Influence of geometric dimensions on the performance of a filtering hydrocyclone: an experimental and cfd study

CFD – basierte Modellierung der Hydrozyklonklassierung

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