Hydrodynamics of a rheologically complicated liquid in a self-cleaning filter
Tóm tắt
A mathematical model has been developed for non-Newtonian flow in a hydrodynamic self-cleaning filter. The system of rheodynamic equations describing the flow of a rheologically complicated medium in the filter has been solved by a numerical method. The velocity and effective viscosity fields for the non-Newtonian liquid have been determined. The effect of the rheological properties of the liquid on the hydrodynamic characteristics of the flow has been investigated. The liquid stream lines, the trajectories of the solid particles, and the efficiency of the hydrodynamic separation of particles have been calculated. The deviation of the experimental particle separation data from the corresponding calculated data does not exceed 15%, indicating the validity of the mathematical model and computational method and demonstrating their applicability to design of hydrodynamic and separation processes.
Tài liệu tham khảo
Devisilov, V.A. and Myagkov, I.A., Mobile Device for Regeneration of Spent Oils, Bezopasnost Tekhnosfere, 2007, no. 5, p. 36.
Devisilov, V.A. and Myagkov, I.A., Hydrodynamic Vibratory Filters for Regeneration of Spent Oils and Petroleum Products, Ekol. Prom-st. Rossii, 2005, no. 7, p. 4.
Mochalin, E.V. and Mochalina, I.G., Efficiency of Separation of Suspended Impurities Using a Rotating Filter, Vestn. NTU “KhPI,” 2011, no. 10, p. 3.
Romankov, P.G., Hydrodynamic Processes in Chemical Technology, Teor. Osn. Khim. Tekhnol., 1972, vol. 6, no. 6, p. 855.
Devisilov, V.A. and Sharai, E.Yu., Simulation of the Operation of a Hydrodynamic Filter with the Use of a Program Package, Bezopasnost Tekhnosfere, 2009, no. 5, p. 21.
Devisilov, V.A. and Sharai, E.Yu., Simulation of the Non-Newtonian Fluid Flow near the Vibrating Filtering Membrane of a Hydrodynamic Filter, Bezopasnost Tekhnosfere, 2010, no. 5, p. 23.
Kholpanov, L.P. and Ibyatov, R.I., Mathematical Modeling of the Hydrodynamics over Permeable Surfaces, Theor. Found. Chem. Technol., 2003, vol. 37, no. 3, p. 207.
Kholpanov, L.P. and Ibyatov, R.I., Mathematical Modeling of the Dispersed Phase Dynamics, Theor. Found. Chem. Technol., 2005, vol. 39, no. 2, p. 190.
Schutyser, M. and Belfort, G., Dean Vortex Membrane Microfiltration Non-Newtonian Viscosity Effects, Ind. Eng. Chem. Res., 2002, vol. 41, no. 3, p. 494.
Testik, F. and Voropaev, S., On the Case When Steady Converging/Diverging Flow of a Non-Newtonian Fluid in a Round Cone Permits an Exact Solution, Mech. Res. Commun., 2004, vol. 31, no. 4, p. 477.
Mochalin, E.V., Flow of a Dilute Suspension through a Perforated Rotating Cylinder, Vostochno-Evr. Zh. Pered. Tekhnol., 2010, vol. 6, no. 6 (48), p. 21.
Kamisli, F., Laminar Flow of a Non-Newtonian Fluid in Channels with Wall Suction or Injection, Int. J. Eng. Sci., 2006, vol. 44, no. 10, p. 650.
Tyabin, N.V., Reologicheskaya kibernetika (Rheological Cybernetics), Volgograd: Volgogradskaya Pravda, 1977.
Fetisova, E.G. and Golovanchikov, A.B., Promising Designs of Filtering Centrifuges for Pseudoplastic Liquids, Izv. Volgogr. Gos. Tekh. Univ., 2010, vol. 1, no. 3, p. 86