Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2002-06-04
Physics
Condensed Matter
Soft Condensed Matter
LaTeX2e with epl class, 7 pages, 2 figures, submitted to Europhysics Letters
Scientific paper
10.1209/epl/i2002-00307-8
Inelastic grains in a flow under gravitation tend to collapse into states in which the relative normal velocities of two neighboring grains is zero. If the time scale for this gravitational collapse is shorter than inverse strain rates in the flow, we propose that this collapse will lead to the formation of ``granular eddies", large scale condensed structures of particles moving coherently with one another. The scale of these eddies is determined by the gradient of the strain rate. Applying these concepts to chute flow of granular media, (gravitationally driven flow down inclined planes) we predict the existence of a bulk flow region whose rheology is determined only by flow density. This theory yields the experimental ``Pouliquen flow rule", correlating different chute flows; it also correctly accounts for the different flow regimes observed.
Ertas Deniz
Halsey Thomas C.
No associations
LandOfFree
Granular gravitational collapse and chute flow does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Granular gravitational collapse and chute flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Granular gravitational collapse and chute flow will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-95751