Segregation in granular binary mixtures: Thermal diffusion
نویسندگان
چکیده
منابع مشابه
Reversible axial segregation of binary mixtures of granular materials.
Measurements of axial segregation of binary mixtures of glass beads having different diameters in a rotating horizontal cylinder are reported. For rotation speeds of ~ 15 rpm a mixed state quickly (within a few minutes) segregates into sharp bands of alternating large and small glass beads along the axis of rotation. Decreasing the rotation speed to ~ 5 rpm causes the bands to disappear, restor...
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Previous work on the maximum angle of stability of granular material piles had shown a dip pattern, with lower angles of stability for mixtures of hexagons and dimers or singles made out of ball bearings. This purpose of this study was to confirm this pattern for mixtures of different shapes, namely doubles and large diamonds and small and large triangles. This was done by recording footage of ...
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Segregation of polydisperse granular materials in rotating containers is a ubiquitous but still not satisfactorily understood phenomenon. This study describes axial segregation of bidisperse granular mixtures of glass beads in a spherical container, rotating about its horizontal axis. Depending on the filling fraction of the mixer and on the composition of the mixture, qualitatively different s...
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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 2006
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i2006-10143-4