A Biviscous Modified Bingham Model of Snow Avalanche Motion
Open Access
- 1 January 1983
- journal article
- research article
- Published by International Glaciological Society in Annals of Glaciology
- Vol. 4, 42-46
- https://doi.org/10.1017/s0260305500005218
Abstract
A modified Bingham numerical model is developed and tested for the simulation of the motion of snow avalanches. This two-dimensional, incompressible model takes the form of a two-viscosity system in which a large viscosity is employed in the low stress regions of the flow and a smaller viscosity is used in the high stress regions. The model involves three parameters: the two viscosities, and the value of the stress for the transition between the two flow regimes. A simple no-slip boundary condition is used at the interface between the flowing snow and the stationary snow surface. Model parameters are evaluated by simulating the motion of the leading edge of the flowing snow, velocity versus depth information, and debris distribution of small snow test experiments.Keywords
This publication has 5 references indexed in Scilit:
- Experiments on mechanics of flowing snowCold Regions Science and Technology, 1982
- Viscosity and heat transfer in fluidized snowJournal of Glaciology, 1980
- Modeling of Snow flowJournal of Glaciology, 1980
- AVALANCHE RELEASE, MOTION, AND IMPACTPublished by Elsevier ,1980
- Fluidization of snowCold Regions Science and Technology, 1979