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Discrete element modelling of industrial granular flow applications

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Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Discrete element methods for modelling granular flows have now developed sufficiently for them to be applied to complex industrial and mining applications with an expectation that they can predict these flows reasonably well. Furthermore detailed quantitative predictions can be made using these models, allowing them to be validated against carefully designed experiments and then iteratively improved. The models allow existing equipment and processes to be carefully analysed. The resulting enhanced understanding can then be used to help improve them or to create new ones. DEM modelling of a wide range of industrial applications are described in this paper, including ball mill operation, dragline bucket filling, vibrational segregation by size and density, flow in centrifugal mills, flows from slot hoppers, idler induced segregation, cutter bias for commodity samplers and mixing in tumblers.
Rocznik
Strony
385--415
Opis fizyczny
Bibliogr. 26 poz., rys.
Twórcy
autor
  • CSIRO Division of Mathematical and Information Sciences, Private Bag 10, Clayton South MDC, Clayton Vic, 3169, Australia
Bibliografia
  • [1] Campbell C. S., 1990, Rapid Granular Flows, Annua! Rev. Fluid Mech., 22,57-92
  • [2] Barker G. C., 1994, Computer simulations of granular materials, in: Granular Matter: An interdisciplinary approach, Ed. Anita Mehta, Springer-Verlag, NY
  • [3] Walton O. R., 1994, Numerical simulation of inelastic frictional particle-particle interaction, Chapter 25 of Particulate two-phase flow, ed M. C. Roco, 884 - 911
  • [4] Cleary P. W., Campbell C. S., 1993, Self-lubrication for long run-out landslides: Examination by computer simulation, J. Geophys. Res., 98, B12, pp. 21,911-21,924
  • [5] Campbell C. S., Cleary P. W., Hopkins M. A., 1995, Large scale landslide simulations: Global deformation, velocities and basal friction, J. Geophys. Res.
  • [6] Hopkins M. A., Hibler W. D., Plato G. M., 1991, On the numerical simulation of the sea ice ridging process, J. Geophys. Research
  • [7] Mishra B. K., Rajamani R. J., The discrete element methodfor the simulation of ball mills, App. Math. Modelling, 1992,16,pp. 598-604
  • [8] Mishra 3. K., Rajamani R. K., Simulation of charge motion in ball mills, Part 1: experimental verifications, Int. J. Mineral Processing, 1994,40,171-186
  • [9] Rajamani R. K., Mishra B. K., Dynamics of ball and rock charge in sag mills, Pro.;. SAG 1996,1996, Department of Mining and Mineral Process Engineering, University of British Columbia
  • [10] Holst J. M., Rotter J. M., Ooi J. Y., RongG. H., 1997, Discrete particle and continuum modelling of particulate solids in silos: SILO FILLING, Research report R97-007, Department of Civil and Environmental Engineering, University of Edinburgh, Edinburgh, EH93JN.UK
  • [11] Cleary P. W., 1993, Modelling granular flows with complex boundary geometries, Proc. 6th International Computational Techniques and Applications Conference, Eds. Stewart, D., Gardener, H., and Singleton, D., pp 148-155
  • [12] Cleary P. W., 1994, Modelling :ndus trial granular flows, Proc. 1st Australian Engineering Mathematics Conference, pp. 169-177, Melbourne, 11-13th July, Eds. A. K. Easton and J. M. Steiner
  • [13] Cleary P. W., and Barton N. G., 1996, Use of particle methods to design mineral processing equipment, in Zeitschrift fur Angewandte Mathematik und Mechanik, 76, Supplement 4, Eds. E. Kreuzer and O. Mahrenholtz, Akademie Verlag, Berlin, 253-256
  • [14] Ansley and Kohn, Filtering and smoothing in state space models with partially diffuse initial conditions, J. Time Series Analysis, 11,1990, pp 275-294
  • [15] Cleary P. W., 1996, Discrete element modelling industrial granular flows, Proc. 2nd Australian Engineering Mathematics Ccnference, pp. 301-308, Eds. W. Y., Yuen, Broadbridge, R, and Steiner, J. M., Institute of Engineers, Australia. Sydney, 15-17th July
  • [16] Cleary P. W., 1997, Industrial particle flow modelling: Discrete element methods and their applications, Proc. Chemeta 97, paper PT la on CD Rom, reprinted in Chemeca97 Particle Technology Workshop, Ed. C. Davies, 1-12, Rotorua NZ
  • [17] Cleary P. W., Metcalfe G., and Liffman K., 1998, How well do discrete element granular flow models capture the essentials of mixing and segregation processe?, to appear: Applied Mathematical Modelling
  • [18] Schafer J., Dippel S., WolfD. E., 1996, Force schemes in simulation of granular material, J. de Physique I.
  • [19] Hopkins M. A., 1987, Particle Simulations: Volume 1, Report No 87-7, Clarkson University, Potsdam, NY, USA
  • [20] Finnie I., 1960, Erosion ofsurfaces by solid particles, Wear, 3,87-103
  • [21] Finnie I., 1972, Some observations on the erosion of ductile metals, Wear, 19, 81 - 90
  • [22] Hoyer, D.I., 1984, Particle trajectories and charge shapes in centrifugal mills, Proc. Int. Conf. on recent advances in mineral sciences and technology, MINTEK, South Africa, pp. 401-409
  • [23] Cleary P. W., 1998, The filling of dragline buckets, to appear: Mathematical Engineering in Industry
  • [24] Liffman K., Metcalfe G,, Cleary P. W., 1997, Particle Segregation and Convective Transport Due to Horizontal Shaking, Fhys. Rev. Lett., 79,4574-4576
  • [25] Robinson G. K., and Cleary P. W., 1998, The conditions for sampling io be unbiased - Using Granular Flow Modelling to provide insight, CS1RO Division of Mathematical and Information Sciences, Technical Report CMIS 98/70
  • [26] Metcalfe G., Shinbrot T., McCarthy J. J., Gitino J. M., 1995, Avalanche mixing of granular solids, Nature, 374 39-41
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT3-0019-0026
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