Articles | Volume 12, issue 1
https://doi.org/10.5194/gmd-12-581-2019
https://doi.org/10.5194/gmd-12-581-2019
Model description paper
 | 
01 Feb 2019
Model description paper |  | 01 Feb 2019

IMEX_SfloW2D 1.0: a depth-averaged numerical flow model for pyroclastic avalanches

Mattia de' Michieli Vitturi, Tomaso Esposti Ongaro, Giacomo Lari, and Alvaro Aravena

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Short summary
Pyroclastic avalanches are a type of granular flow generated at active volcanoes by different mechanisms, including the collapse of steep pyroclastic deposits (e.g., scoria and ash cones) and fountaining during moderately explosive eruptions. We present IMEX_SfloW2D, a depth-averaged flow model describing the granular mixture as a single-phase granular fluid. Benchmark cases and preliminary application to the simulation of the 11 February pyroclastic avalanche at Mt. Etna (Italy) are shown.