The present investigation pertains to simulation of the aerodynamics of a two-phase nonisothermal twisted turbulent flow in the vortex chamber of an air-centrifugal classifier. The gas phase dynamics was determined with the aid of Reynolds equations whose closure was based on the Wilcox turbulence model. The motion of the solid phase of an ultradisperse powder is simulated by a combination of calculations of the motion trajectories of particular particles in a Lagrangian coordinate system. The influence of turbulent diffusion of particles and of other factors on the efficiency of the segregation of particle fractions by size is shown. The reliability of the results obtained is confirmed by test studies and by comparing numerical results with well-known experimental data.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. T. Roslyak, Yu. A. Biryukov, and V. N. Pachin, Pneumatic Powder Technology Methods and Apparatuses [in Russian], Izd. Tomsk. Gos. Univ., Tomsk (1990).
V. E. Mizonov and S. G. Ushakov, Aerodynamic Classification of Powders [in Russian], Khimiya, Moscow (1989).
P. N. Zyatikov, A. T. Roslyak, I. M. Vasenin, A. V. Shvab, A. A. Demidenko, and Sh. R. Sadretdinov, A Means of Air-Centrifugal Classifi cation of Powders and a Device for the Purpose, Patent No. 2407601 RF, PK V 07V7/083, Published 27.12.2010, Byull. No. 36.
D. C. Wilcox, Reassessment of the scale-determining equation for advanced turbulence models, AIAA J., 26, No. 11, 1299−1310 (1988).
A. V. Shvab and V. Yu. Khairullina, Twisted turbulent fl ow between rotating profi led disks, Teor. Osn. Khim. Tekhnol., 45, No. 5, 557–565 (2011).
A. V. Shvab and A. G. Chepel′, Modeling of swirling turbulent fl ow in a separator with biconical plates, J. Eng. Phys. Thermophys., 83, No. 2, 338–345 (2010).
A. A. Mostafa, Kh. Ts. Mondzhia, V. G. Makdonell, G. A. Samuelsen, Propagation of dust-laden jet fl ows: theoreticalexperimental investigation, Aérokosm. Tekh., No. 3, 65–82 (2000).
R. Peiret and T. D. Taylor, Computational Methods in Problems of Fluid Mechanics [Russian translation], Gidrometeoizdat, Leningrad (1986).
S. Patankar, Numerical Methods for Solving Problems of Heat Transfer and Fluid Dynamics [Russian translation], Énergoatomizdat, Moscow (1984).
A. Singh, B. D. Vyas, and U. S. Powle, Investigations on inward fl ow between two stationary parallel disks, Int. J. Heat Fluid Flow, No. 20, 395–401 (1999).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 89, No. 4, pp. 826–836, July–August, 2016.
Rights and permissions
About this article
Cite this article
Shvab, A.V., Evseev, N.S. Modeling the Process of Particle Fractionation in a Pneumatic Centrifugal Apparatus. J Eng Phys Thermophy 89, 829–839 (2016). https://doi.org/10.1007/s10891-016-1443-3
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10891-016-1443-3