Heaping and secondary flows in sheared granular materials
نویسندگان
چکیده
منابع مشابه
Heaping, secondary flows and broken symmetry in flows of elongated granular particles.
In this paper we report experiments where we shear granular rods in split-bottom geometries, and find that a significant heap of height of least 40% of the filling height can form at the particle surface. We show that heaping is caused by a significant secondary flow, absent for spherical particles. Flow reversal transiently reverses the secondary flow, leading to a quick collapse and slower re...
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The vertical size segregation of granular materials, a process commonly associated with the Brazil-nut effect, has generally been thought to proceed faster the greater the size difference of the particles. We experimentally investigate sheared dense bidisperse granular materials as a function of the size ratio of the two species and find that the mixing rate at low confining pressure behaves as...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2016
ISSN: 1367-2630
DOI: 10.1088/1367-2630/18/11/113006