NUMERICAL ANALYSIS OF THE WATER AERATION IN THE FLOTATION MACHINE

NUMERICAL ANALYSIS OF THE WATER AERATION IN THE FLOTATION MACHINE

Szczygiel, I.; Fic, A.; Sachajdak, A.; Rojczyk, M.; Buliński, Z.

Full Article:

Numerical model of the flow phenomena in the flotation machine is presented in the paper. The process of flotation consists of a number of phenomena which provide serious numerical difficulties. These include rotation, multiphase flow, foam formation etc. To the knowledge of authors, there is no complete numerical model available for the flotation machine. The long term task of the project is to develop the model of processes taken place in the flotation machine. Such a model would be very helpful designing these machine or during their modernization. In the paper, a two-phase flow of water and air in the flotation cell is analysed. For this purpose the commercial package ANSYS-Fluent was employed. The Interfacial Area Concentration method was used to model the two phase flow.

Numerical model of the flow phenomena in the flotation machine is presented in the paper. The process of flotation consists of a number of phenomena which provide serious numerical difficulties. These include rotation, multiphase flow, foam formation etc. To the knowledge of authors, there is no complete numerical model available for the flotation machine. The long term task of the project is to develop the model of processes taken place in the flotation machine. Such a model would be very helpful designing these machine or during their modernization. In the paper, a two-phase flow of water and air in the flotation cell is analysed. For this purpose the commercial package ANSYS-Fluent was employed. The Interfacial Area Concentration method was used to model the two phase flow.

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DOI: 10.5151/meceng-wccm2012-19492

Referências bibliográficas

• [1] ANSYS-Fluent 12.1.4; Theory Guide, April 2009.
• [2] Deglon D.A., Meyer C.J., CFD modelling of stirred tanks: Numerical considerations. Minerals Engineering, 19, 2006, 1059-1068.
• [3] Fic A., Sachajdak A., Szczygiel I., Manka A.: Flow processes in the aerator of the flotation machine– preliminary simulations. XX Jubileuszowy Zjazd Termodynamików 2008. Termodynamika w Nauce i Gospodarce, Z. Gnutek, W. Gajewski (Eds.), Vol. I, 260-267, Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw 2008 (in Polish).
• [4] Ishii M., Hibiki T., Thermo-Fluid Dynamics of Two-Phase Flow. Springer, New York 2010.
• [5] Koh P.T.L., Schwarz M.P., CFD model of self-aerating flotation cell. Int. J. Mineral Process., 85, 2007, 16-24.
• [6] Ramkrishna, D.: Population Balances: Theory and Applications to Particulate Systems in Engineering, Academic Press, 2000.
• [7] Tiitinen J., Vaarno J., Grönstrand S., Numerical modelling of an Outokumpu flotation device. 3th Int. Conf. on CFD In The Minerals and Process Industries, Melbourne, Australia, 2003

Como citar:

Szczygiel, I.; Fic, A.; Sachajdak, A.; Rojczyk, M.; Buliński, Z.; "NUMERICAL ANALYSIS OF THE WATER AERATION IN THE FLOTATION MACHINE", p-3597-3605. In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 23580828, DOI 10.5151/meceng-wccm2012-19492