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MODELING OF THE SEDIMENTATION PROCESS WITH THE USE OF NUMERICAL METHODS
Abstract
The article presents the proposition of numerical simulation of the sedimentation process in sedimentation devices, including the method of defining and validating the numerical model of the suspension. The proposal includes a proposal to define a suspension in numerical simulation as a multiphase system with a polydisperse grain composition. The article contains information on the method of defining a multi-phase system based on grain composition of a suspension. A proposal for verification of the numerical model for the high and low concentration system is presented. For the hindered sedimentation (high concentration) it was proposed to conduct validation based on the sedimentation test. For a low-concentration suspension, the use of a flow system with the verification of quantitative data, expressed by the flow rate and the suspension concentration at the inlet and outputs from the device, as well as using qualitative data describing their granulometric composition was proposed. The article also presents a proposal of methodology for numerical simulation of the sedimentation process in settling tanks, detailing the individual stages of modeling.
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References15
Kowalski W.P.: Lamella sedimentation - The state of art and directions of development. Chemical and Process Engineering 25/3, 1163-1170, 2004.
J. Bandrowski, H. Merta, i J. Zioło, Sedymentacja zawiesin: zasady I projektowanie. Gliwice: Politechnika Śląska, 2001.
W. P. Kowalski, Osadniki wielostrumieniowe. Kraków: AGH, 2004.
Bustos M.C., Concha F., Bürger R., Tory E.M.: Sedimentation and Thickening: Phenomenological Foundation and Mathematical Theory, Springer, 1999.
Tory E.M.: Sedimentation of small particles in a viscous fluid. Computational Mechanics Publications, Boston, 281, 1996.
Banas M., The dependence of sedimentation efficiency on suspension concentration. Inż. Chem i Proc., 2004, vol. 25, pp. 659-664.
Banas M., Warzecha P., Hilger B., Distribution of turbidity in the water treatment plant settler 14th SGEM GeoConference on Ecology, Economics, Education And Legislation, Vol. 2, No. SGEM2014 Conference Proceedings, 2014, Vol. 2, pp. 193-200.
Prosperetti A., Tryggvason G., Computational Methods for Multiphase Flow, Cambridge University Press, 2009.
Banas, M., Laboratory studies on concentration relationship of suspension turbidity. Przemysl Chemiczny, 2016, vol. 95, 1465–1468.
Kołodziejczyk K., Numerical simulations of polydispersed suspension sedimentation in ANSYS CFX, Polish Journal of Environmental Studies, 2014, vol. 23 no. 3, pp. 1003–1008.
Bürger R., Concha F., Fielde K.-K., Karlsen K. H., Numerical simulation of the settling of polydisperse suspensions of spheres, Powder Technol., 2000, t. 113, nr 1–2, ss. 30–54.
Tory, E. M., Ford R. A.,Simulation of sedimentation of bidisperse suspensions. International Journal of Mineral Processing, Solid Liquid Separation Systems, 2004, 73, pp. 119–30.
Tryggvason G., Bunner B., Esmaeeli A., Al-Rawahi N., Computations of Multiphase Flows, Advances in Applied Mechanics, 2003, Volume 39, Elsevier, pp. 81–120.
Goula A. M., Kostoglou M., Karapantsios T. D., Zouboulis A. I., A CFD methodology for the design of sedimentation tanks in potable water treatment: Case study: The influence of a feed flow control baffle, Chem. Eng. J.,2008, t. 140, nr 1–3, pp. 110–121.
Rostami F., Shahrokhi M., Md Said M. A., Abdullah R., Syafalni, Numerical modeling on inlet aperture effects on flow pattern in primary settling tanks, Appl. Math. Model.,2011, t. 35, nr 6, pp. 3012–3020.
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