Onset of three-dimensional shear in granular flow.
Journal Article
·
· Proposed for publication in Physical Review Letters.
OSTI ID:970730
- University of Chicago, Chicago, IL
The evolution of granular shear flow is investigated as a function of height in a split-bottom Couette cell. Using particle tracking, magnetic-resonance imaging, and large-scale simulations, we find a transition in the nature of the shear as a characteristic height H* is exceeded. Below H* there is a central stationary core; above H* we observe the onset of additional axial shear associated with torsional failure. Radial and axial shear profiles are qualitatively different: the radial extent is wide and increases with height, while the axial width remains narrow and fixed.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 970730
- Report Number(s):
- SAND2005-5037J
- Journal Information:
- Proposed for publication in Physical Review Letters., Journal Name: Proposed for publication in Physical Review Letters.
- Country of Publication:
- United States
- Language:
- English
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