Abstract
Magnetic Resonance Imaging (MRI) techniques have been used to study the mixing and segregation processes of granular materials in Turbula mixer using binary mixtures of sugar beads of different diameters d. When the ratio R of bead diameters is approximatively R = 1 mixing process is observed, but segregation occurs as soon as R > 1.1 or R < 0.9. Furthermore, segregation develops faster than mixing and is induced by surface effect. We report in this paper, a qualitative analysis of these phenomena. Effects of some parameters (beads diameter ratio, speed rotation, mixing time, concentration) have been checked on segregation and mixing processes.
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Porion, P., Sommier, N., Evesque, P. (2000). Mixing and Segregation of Grains Studied by N.M.R. Imaging Investigation — Application to a Turbulence Mixer: The Turbula Blender. In: Rosato, A.D., Blackmore, D.L. (eds) IUTAM Symposium on Segregation in Granular Flows. Solid Mechanics and Its Applications, vol 81. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9498-1_13
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DOI: https://doi.org/10.1007/978-94-015-9498-1_13
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