Investigation of impeller design and flow structures in mechanical stirring of molten aluminum
作者： Takuya Yamamoto , Aire Suzuki , Sergey V. Komarov , Yasuo Ishiwata
DOI: 10.1016/J.JMATPROTEC.2018.06.012
关键词:
摘要: Abstract This study investigated the flow characteristics of aluminum melt agitated by differently shaped impellers. A typical impeller used in industry has twisted blades. The present examined effect twisting angle on pattern through PIV experiments and numerical simulation using water model. results revealed that affects strength direction discharge flow. became weaker with increasing while was influenced both front blade surface space interval between adjacent structure trailing vortices found to be also varied depending angle.
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sci-hub.se 参考文章(22)
M. Saternus, Influence of impeller shape on the gas bubbles dispersion in aluminium refining process Journal of achievements in materials and manufacturing engineering. ,vol. 55, ,(2012)
Jyeshtharaj B. Joshi, Nandkishor K. Nere, Chinmay V. Rane, B. N. Murthy, Channamallikarjun S. Mathpati, Ashwin W. Patwardhan, Vivek V. Ranade, CFD simulation of stirred tanks: Comparison of turbulence models (Part II: Axial flow impellers, multiple impellers and multiphase dispersions) Canadian Journal of Chemical Engineering. ,vol. 89, pp. 754- 816 ,(2011) , 10.1002/CJCE.20465
V.S. Warke, S. Shankar, M.M. Makhlouf, Mathematical modeling and computer simulation of molten aluminum cleansing by the rotating impeller degasser: Part II. Removal of hydrogen gas and solid particles Journal of Materials Processing Technology. ,vol. 168, pp. 119- 126 ,(2005) , 10.1016/J.JMATPROTEC.2004.10.016
O. Mirgaux, D. Ablitzer, E. Waz, J.P. Bellot, Mathematical Modeling and Computer Simulation of Molten Aluminum Purification by Flotation in Stirred Reactor Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science. ,vol. 40, pp. 363- 375 ,(2009) , 10.1007/S11663-009-9233-3
J Aubin, D.F Fletcher, C Xuereb, Modeling turbulent flow in stirred tanks with CFD: the influence of the modeling approach, turbulence model and numerical scheme Experimental Thermal and Fluid Science. ,vol. 28, pp. 431- 445 ,(2004) , 10.1016/J.EXPTHERMFLUSCI.2003.04.001
B.N. Murthy, J.B. Joshi, Assessment of standard k–ε, RSM and LES turbulence models in a baffled stirred vessel agitated by various impeller designs Chemical Engineering Science. ,vol. 63, pp. 5468- 5495 ,(2008) , 10.1016/J.CES.2008.06.019
Stein Tore Johansen, Svend Graadahl, Thomas F. Hagelien, Entrainment of inclusions from the dross in stirred reactors for melt treatment Applied Mathematical Modelling. ,vol. 28, pp. 63- 77 ,(2004) , 10.1016/S0307-904X(03)00119-7
Eudoxio Ramos Gómez, Roberto Zenit, Carlos González Rivera, Gerardo Trápaga, Marco A Ramírez-Argáez, None, Mathematical Modeling of Fluid Flow in a Water Physical Model of an Aluminum Degassing Ladle Equipped with an Impeller-Injector Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science. ,vol. 44, pp. 423- 435 ,(2013) , 10.1007/S11663-012-9774-8
Eudoxio Ramos Gómez, Roberto Zenit, Carlos González Rivera, Gerardo Trápaga, Marco A Ramírez-Argáez, None, Physical Modeling of Fluid Flow in Ladles of Aluminum Equipped with Impeller and Gas Purging For Degassing Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science. ,vol. 44, pp. 974- 983 ,(2013) , 10.1007/S11663-013-9845-5
F. Chiti, A. Paglianti, W. Bujalski, A Mechanistic Model to Estimate Power Consumption and Mixing Time in Aluminium Industries Chemical Engineering Research & Design. ,vol. 82, pp. 1105- 1111 ,(2004) , 10.1205/CERD.82.9.1105.44156