Articles | Volume 14, issue 10
https://doi.org/10.5194/tc-14-3381-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-3381-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 Oct 2020
Research article |
| 12 Oct 2020
| 12 Oct 2020
The mechanical origin of snow avalanche dynamics and flow regime transitions
Xingyue Li
School of Architecture, Civil and Environmental Engineering, Swiss Federal Institute of Technology, Lausanne, Switzerland
Betty Sovilla
WSL Institute for Snow and Avalanche Research, SLF, Davos, Switzerland
Chenfanfu Jiang
Computer and Information Science Department, University of Pennsylvania, Philadelphia, Pennsylvania, USA
School of Architecture, Civil and Environmental Engineering, Swiss Federal Institute of Technology, Lausanne, Switzerland
WSL Institute for Snow and Avalanche Research, SLF, Davos, Switzerland
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Short summary
This numerical study investigates how different types of snow avalanches behave, how key factors affect their dynamics and flow regime transitions, and what are the underpinning rules. According to the unified trends obtained from the simulations, we are able to quantify the complex interplay between bed friction, slope geometry and snow mechanical properties (cohesion and friction) on the maximum velocity, runout distance and deposit height of the avalanches.
This numerical study investigates how different types of snow avalanches behave, how key factors...
