Articles | Volume 16, issue 11
Research article
03 Nov 2016
Research article |  | 03 Nov 2016

Snow avalanche friction relation based on extended kinetic theory

Matthias Rauter, Jan-Thomas Fischer, Wolfgang Fellin, and Andreas Kofler

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Cited articles

Alam, M., Willits, J. T., Arnarson, B. Ö., and Luding, S.: Kinetic theory of a binary mixture of nearly elastic disks with size and mass disparity, Phys. Fluids, 14, 4085–4087,, 2002.
Alean, J.: Ice avalanches: some empirical information about their formation and reach, J. Glaciology, 31, 324–333, 1985.
Ancey, C.: Plasticity and geophysical flows: a review, J. Non-Newtonian Fluid, 142, 4–35,, 2007.
Arnarson, B. Ö. and Willits, J. T.: Thermal diffusion in binary mixtures of smooth, nearly elastic spheres with and without gravity, Phys. Fluids, 10, 1324–1328,, 1998.
Bagnold, R. A.: Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear, P. Roy. Soc. Lond. A-Mat., 225, 49–63,, 1954.
Short summary
Kinetic theory describes granular material under rapid motion. Macroscopic phenomena are determined by statistically describing collisions between particles. Recently, the theory has been extended to slow motion and quasi-static cases. Simplifications allow to apply this theory to snow avalanche simulations, where friction models with similar structure have been developed. Different test cases, comparing simulation and measurement data prove the applicability and highlight the improvements.
Final-revised paper