Continuum description of avalanches in granular media.
Conference
·
OSTI ID:772120
A continuum theory of partially fluidized granular flows is proposed. The theory is based on a combination of the mass and momentum conservation equations with the order parameter equation which describes the transition between flowing and static components of the granular system. We apply this model to the dynamics of avalanches in chutes. The theory provides a quantitative description of recent observations of granular flows on rough inclined planes (Daerr and Douady 1999): layer bistability, and the transition from triangular avalanches propagating downhill at small inclination angles to balloon-shaped avalanches also propagating uphill for larger angles.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 772120
- Report Number(s):
- ANL/MSD/CP-103586; TRN: AH200118%%390
- Resource Relation:
- Conference: Powders and Grains International Conference on Micromechanics of Granular Media, Sedai (JP), 05/21/2001--05/25/2001; Other Information: PBD: 5 Dec 2000
- Country of Publication:
- United States
- Language:
- English
Similar Records
Continuum theory of partially fluidized granular flows.
Non-local rheological properties of granular flows near a jamming limit.
Erosive granular avalanches : a cross confrontation between theory and experiment.
Journal Article
·
Sat Jun 01 00:00:00 EDT 2002
· Phys. Rev. E
·
OSTI ID:772120
Non-local rheological properties of granular flows near a jamming limit.
Journal Article
·
Tue Jan 01 00:00:00 EST 2008
· Phys. Rev. E
·
OSTI ID:772120
+1 more
Erosive granular avalanches : a cross confrontation between theory and experiment.
Journal Article
·
Mon Jan 01 00:00:00 EST 2007
· Granular Matter
·
OSTI ID:772120
+1 more