Experiments and simulations of a gravitational granular flow instability.

  title={Experiments and simulations of a gravitational granular flow instability.},
  author={Jan Ludvig Vinningland and Oistein Johnsen and Eirik Grude Flekk\oy and Renaud Toussaint and Knut J\orgen M{\aa}l\oy},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={76 5 Pt 1},
An instability is observed as a layer of dense granular material positioned above a layer of air falls in a gravitational field [Phys. Rev. Lett. 99, 048001 (2007)]. A characteristic pattern of fingers emerges along the interface defined by the grains, and a transient coarsening of the structure is caused by a coalescence of neighboring fingers. The coarsening is limited by the production of new fingers as the separation of the existing fingers reaches a certain distance. The experiments and… CONTINUE READING


Publications referenced by this paper.
Showing 1-10 of 18 references


C. Chevalier, M. B. Amar, D. Bonn, A. Lindner, J. Fluid Mech
83 • 2006
View 1 Excerpt


F. Malloggi, J. Lanuza, B. Andreotti, E. Clement
Lett. 75, 825 • 2006
View 1 Excerpt


Ø. Johnsen, R. Toussaint, K. J. Måløy, E. G. Flekkøy
Rev. E 74, 011301 • 2006


M. P. Ciamarra, A. Coniglio, M. Nicodemi
Phys.: Condens. Matter 17, 2549 • 2005
View 1 Excerpt

Geofluids 3

A. Hurst, J. Cartwright, +4 authors B. Cronin
263 • 2003
View 1 Excerpt

River Mechanics (Cambridge

P. Y. Julien
View 1 Excerpt

and B

W. H. Press, S. A. Teukolsky, W. T. Vetterling
P. Flannery, Numerical Recipes in C++ • 2002
View 1 Excerpt

The Dynamics of Fluidized Particles

R. Jackson
View 1 Excerpt

and S

H. J. Herrmann, J.-P. Hovi
Luding, eds., Physics of Dry Granular Media, vol. 350 of NATO ASI Series E: Applied Sciences • 1998

in Mechanics of Geometrical Interfaces

M. Jean
edited by A. P. S. Selvadurai and M. J. Boulon • 1995

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