Investigation of the Aerodynamic Drag of an Eight-Channel Centrifugal Filter
The aerodynamic characteristics and the structure of vortices of the central region of the channel system of an eight-channel centrifugal filter have been investigated. An overview of the foreign and home literature on the filtration of solid particles in the gas flow in centrifugal apparatuses is given [1, 2]. We present the design and the principle of operation of the eight-channel centrifugal filter based on a system of curvilinear channels with equal turn angles and equal cross-sectional areas connected in series. We have performed numerical calculations of the dependence of the aerodynamic drag of the centrifugal filter on the rate of fl ow obtained by three different methods: analytical calculation, experiments on the laboratory facility, and with the help of modern means of computer modeling. Computational modeling of the flow was carried out by solving Reynolds (RANS, Reynolds-averaged Navier–Stokes) equations by the SFD method with the use of a k–ε model of turbulence for three modes of operation of the apparatus. The results of computer modeling permitted visualizing the vortex structure of the central region of the separation chamber in the form of 3D graphs. The obtained results have been confirmed experimentally on a laboratory model of the centrifugal filter of capacity up to 200 m3/h of purified air.
Keywordscentrifugal filter aerodynamic drag pressure drop modeling channel system
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- 2.M. A. Gol’dshtik, A. K. Leontiev, and I. I. Paleev, Motion of small particles in the swirling flow, Inzh.-Fiz. Zh., 3, No. 2, 17–24 (1960).Google Scholar
- 3.Hideto Yoshida, Kunihiro Fukui, Kenji Yoshida, and Eiji Shinoda, Particle separation by Iinoya’s type gas cyclone, Powder Technol., 16–23 (2001).Google Scholar
- 4.G. M. Aliev, Dust Collection Technique and Industrial Gas Cleaning [in Russian], Metallurgiya, Moscow (1986).Google Scholar
- 5.P. A. Kouzov, A. D. Mal’gin, and G. M. Skryabin, Removal of Dust from Gases and Air in the Chemical Industry [in Russian], Khimiya, Moscow (1982).Google Scholar
- 6.Diagram Manual of the Aspiration of Production Equipment of Industrial Power Units [in Russian], NIPIOTstrom, Novorossiisk (1967).Google Scholar
- 7.D. A. Serebryanskii and E. V. Novakovskii, Removal of dust from gases from in centrifugal filters, Prom. Teplotekh., No. 2, 55–61 (2009).Google Scholar
- 8.Serebryanskyy Dmytro, Petras Vaitikunas, and Inga Jakshtonene, Analysis of numerical modeling in the multichannel cyclone, Chem. Process Eng., 31(4), 635–645 (2010).Google Scholar
- 9.A. I. Burov, Hydraulics of Stratified Curvilinear Flows in Feedback Apparatuses, Doctoral Dissertation (in Engineering), LGTU, Odessa (1991).Google Scholar
- 10.A. A. Burov, Multichannel Centrifugal Ash and Dust Collector for Aspiration of Heat Power Engineering Equipment, Candidate′s Dissertation (in Engineering), ONPU, Odessa (2002).Google Scholar
- 11.D. O. Serebryans’kii, S. V. Plashikhin, and M. V. Semenyuk, Distribution of the concentration and disperse composition of solid particles in gas fl ows in a system of channels with closed loops, Prom. Teplotekh., No. 6, 83–92 (2013).Google Scholar
- 12.I. E. Idel’chik, Handbook on Hydraulic Resistances [in Russian], Mashinostroenie, Moscow (1992).Google Scholar
- 13.I. I. Smul’skii, Aerodynamics and Processes in Vortex Chambers [in Russian], Nauka, Sib. Otd., Novosibirsk (1992).Google Scholar