Articles | Volume 8, issue 1
https://doi.org/10.5194/se-8-177-2017
https://doi.org/10.5194/se-8-177-2017
Research article
 | 
16 Feb 2017
Research article |  | 16 Feb 2017

Combined effects of grain size, flow volume and channel width on geophysical flow mobility: three-dimensional discrete element modeling of dry and dense flows of angular rock fragments

Bruno Cagnoli and Antonio Piersanti

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Cited articles

Abe, S. and Mair, K.: Effects of gouge fragment shape on fault friction: New 3D modelling results, Geophys. Res. Lett., 36, L23302, https://doi.org/10.1029/2009GL040684, 2009.
Banton, J., Villard, P., Jongmans, D., and Scavia, C.: Two-dimensional discrete element models of debris avalanches: Parameterization and the reproducibility of experimental results, J. Geophys. Res., 114, F04013, https://doi.org/10.1029/2008JF001161, 2009.
Becker, G. F.: A feature of Mayon Volcano, Proc. Wash. Acad. Sci., 7, 277–282, 1905.
Cagnoli, B. and Manga, M.: Granular mass flows and Coulomb's friction in shear cell experiments: Implications for geophysical flows, J. Geophys. Res., 109, F04005, https://doi.org/10.1029/2004JF000177, 2004.
Cagnoli, B. and Piersanti, A.: Grain size and flow volume effects on granular flow mobility in numerical simulations: 3-D discrete element modeling of flows of angular rock fragments, J. Geophys. Res. Solid Earth, 120, 2350–2366, https://doi.org/10.1002/2014JB011729, 2015.
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Short summary
The purpose of our research is to understand the mechanisms that determine the mobility of granular flows of rock fragments. Since rock avalanches and pyroclastic flows are too dangerous to be studied at close range, we use numerical simulations and laboratory experiments. We focus on the fundamentals upon which new numerical models will be built to predict the behaviors of natural flows. These fundamentals include the effects of grain size, flow volume and channel width.