A simulation study of mixing granular materials

• Autorzy: Kostek R. , Landowski B.
• Języki publikacji: EN

Abstrakty

EN

Mixing the granular materials is a critical process in many industries, especially in pharmaceutical one, where homogeneous blends of ingredients are required. The homogenisation process is time and energy consuming, thus this article is focused on the process. The mixing process has been simulated with the discrete element method – DEM, which gives an opportunity to study the granular flow of mixed ingredients. Following stages of the mixing process have been presented for various shapes of blenders and analysed, which gives an opportunity to understand the process and mechanisms of homogenisation. Apart from the three basic mechanisms of homogenisation: diffusion, convection and shear, one more has been found.

Słowa kluczowe

EN

discrete element methods; blender; mixing

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2011
• Tom: Vol. 6, no 3
• Strony: 57--64
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Kostek R.

autor

Landowski B.

• University of Technology and Life Sciences Faculty of Mechanical Engineering ul. Kaliskiego 7, 85-796 Bydgoszcz, Poland tel.:[phone], fax: [phone],

Bibliografia

• [1] Boss J., Mieszanie materiałów ziarnistych, PWN, Warszawa1987.
• [2] Chatelaina P., Curionib A., Bergdorfa M., Rossinellia D., Andreonib W., Koumoutsakos P., Billion vortex particle direct numerical simulations of aircraft wakes, Computer Methods in Applied Mechanics and Engineering, vol. 197, no 13-16, pp. 1296-1304, 2008.
• [3] Chaudhuria B., Mehrotraa A., Muzzioa F.J., Tomassone M.S., Cohesive effects in powder mixing in a tumbling blender, Powder Technology, vol. 165, no 2, pp. 105-114, 2006.
• [4] Choldrich R., Fundamentals of particle technology, Midland Information Technology and Publishing, Loughborough, 2002.
• [5] Cleary P.W., Ha J., Three-dimensional SPH simulation of light metal components, Journal Light Metals, vol. 2, no 3, pp. 16–183, 1993.
• [6] Cundall P.A., A computer model for simulating progressive large scale movements in blocky rock systems, ISRM Symp., Nancy, France, Proc. 2, pp. 129-136, 1971.
• [7] Doucet J., Bertrand F., Chaouki J., Experimental characterization of the chaotic dynamics of cohesionless particles: application to a V-blender, Granular Matter, vol. 10, no 2, pp. 133-138, 2008.
• [8] Fraige F.Y., Langston P.A., Chen G.Z., Distinct element modelling of cubic particle packing and flow, Powder Technology, vol. 186, no 3, pp. 224-240, 2008.
• [9] Fuller W.O., Abbe P.O., Mixing up a batch: batch mixer types and selection tips, available from: http://www.pauloabbe.com/productLines/doubleArmSigmaBladeMixers/batchMixingTips.html
• [10] Garcia X., Latham J.P., Xiang J., Harrison J.P., A clustered overlapping sphere algorithm to represent real particles in discrete element modelling, Geotechnique, vol. 59, no 9, pp. 779-784, 2009.
• [11] Hoover Wm. G., Computational Physics with Particles – Nonequilibrium Molecular Dynamics and Smooth Particle Applied Mechanics, Computational Methods in Science and Technology, vol. 13, no 2, pp. 83-93, 2007.
• [12] http://www.algoryx.se.
• [13] http://www.consumasz.pl/mbs.htm.
• [14] http://www.khodiyarind.com/industrial-mixer.html.
• [15] http://www.pharmaceuticalonline.com.
• [16] Hunt K.H., Crossley F.R.E., Coefficient of restitution interpreted as damping in vibroimpact, Transactions of the ASME, Journal of Applied Mechanics, vol. 42, no 2, pp. 440-445, 1975.
• [17] Kostek R., Munjiza A., Visualization of results received with the discrete element method, Computational Methods in Science and Technology (CMST), vol. 15, no 2, pp. 151-160, 2009.
• [18] Koumoutsakos P., Multiscale flow simulations using particles, Annual Review of Fluid Mechanics, vol. 37, pp. 457-487, 2005.
• [19] Latham J.P., Munjiza A., Garcia X., Xiang J., Guises R., Three-dimensional particle shape acquisition and use of shape library for DEM and FEM/DEM simulation, Minerals Engineering, vol. 21, no 11, pp. 797-805, 2008.
• [20] Michalczyk J., Phenomenon of force impulse restitution in collision modelling, Journal of theoretical and applied mechanics, vol. 46, no 4, pp. 897-908, 2008.
• [21] Moakher M., Shinbrot T., Muzzio F.J., Experimentally validated computations of flow, mixing and segregation of non-cohesive grains in 3D tumbling blenders, Powder Technology, vol. 109, no 1-3, pp. 58-71, 2000.
• [22] Mohammadi S., Discontinuum Mechanics, Wit Press, 2003.
• [23] Munjiza A., The combined finite-discrete element method, Wiley, 2005.
• [24] ParaView, http://www.paraview.org.
• [25] Shi G., Discontinuous deformation analysis – A new numerical model for the statics and dynamics of deformable block structures, 1st U.S. Conf. on Discrete Element Methods, Golden. CSM Press: Golden, CO, pp. 16, 1989.
• [26] Shinbrot T., Alexander A., Muzzio F.J., Spontaneous chaotic granular mixing, Nature, vol. 397, no 6721, pp. 675-678, 1999.
• [27] Stęk F., Mieszanie i mieszalniki, WNT, Warszawa 1981.
• [28] The Scientific Computing and Imaging (SCI) Institute web site http://www.sci.utah.edu
• [29] Tsuji T., Yabumoto K., Tanaka T., Spontaneous structures in three-dimensional bubbling gas-fluidized bed by parallel DEM–CFD coupling simulation, Powder Technology, vol. 184, no 2, pp. 132-140, 2008.
• [30] Weinekötter R., Gericke H., Mixing of solids, Kluwer, 2000.
• [31] Weiss P., Mastering the mixer the frustrating physics of cake mix and concrete, Science News, vol. 164, no 4, pp. 56, 2003.
• [32] Węgrzyn M., Energochłonność procesu mieszania materiałów sypkich mieszadłem łopatkowym, Inżynieria Rolnicza, no 7 (82), pp. 439-447, 2006.
• [33] Williams J.R., Hocking G., Mustoe G.G.W., The theoretical basis of the Discrete Element Method, NUMETA 1985, Numerical Methods of Engineering, Theory and Applications, A.A. Balkema, Rotterdam, January 1985.
• [34] Kostek R., Landowski B. Simulation of the granular flow of grinding media, inside a ball mill, Polish CIMAC, accepted.