DEM simulation of influence of parameters on energy and degree of mixing--颗粒学报PARTICUOLOGY

Siiriä, S., & Yliruusi, J. (2011). DEM simulation of influence of parameters on energy and degree of mixing. Particuology, 9(4), 406–413. https://doi.org/10.1016/j.partic.2011.01.005

DEM simulation of influence of parameters on energy and degree of mixing

Simo Siiriä ^a *, Jouko Yliruusi ^a

a Division of Pharmaceutical Technology, University of Helsinki, Finland

10.1016/j.partic.2011.01.005

Volume 9, Issue 4, August 2011, Pages 406-413

Received 27 September 2010, Revised 29 December 2010, Accepted 18 January 2011, Available online 2 July 2011.

E-mail: simo.siiria@helsinki.fi

Highlights

Abstract

Powder mixing is being modeled using a simulation based on Newtonian mechanics. Variables under consideration include particle friction and the amplitude, frequency, and direction of shaking. Trajectories for each particle were recorded, and a mixing degree was calculated for each simulation, for which the average energy transferred into the powder system was recorded and compared to the resulting mixing degree. Mixing of particles originally located near the bottom was studied separately, as was the mixing of particles near the surface. This study shows that choosing the proper mixing parameters not only enhances the final result of mixing, but also yields good results with less strain on the material mixed and on the mixing device.

Graphical abstract

Keywords

Simulation; Mixing; Mixing degree; Energy

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