Articles | Volume 18, issue 19
https://doi.org/10.5194/gmd-18-7059-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-18-7059-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model evaluation paper
| 
10 Oct 2025
Model evaluation paper |
| 10 Oct 2025
| 10 Oct 2025
Towards viscous debris flow simulation using DualSPHysics v5.2: internal behaviour of viscous flows and mixtures
Suzanne Lapillonne
CORRESPONDING AUTHOR
Univ. Grenoble Alpes, INRAE, CNRS, IRD, Grenoble INP, IGE, Grenoble, France
Georgios Fourtakas
School of Engineering, University of Manchester, Manchester, M13 9PL, UK
Vincent Richefeu
Univ. Grenoble Alpes, 3SR, Gières, France
Guillaume Piton
Univ. Grenoble Alpes, INRAE, CNRS, IRD, Grenoble INP, IGE, Grenoble, France
Guillaume Chambon
Univ. Grenoble Alpes, INRAE, CNRS, IRD, Grenoble INP, IGE, Grenoble, France
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Short summary
Debris flows are fast-flowing events that are saturated with granular material. They naturally occur in steep creeks and are a threat to local communities. Scientists have turned to numerical models to better understand how they behave. We investigate the accuracy of a numerical model that relies on modelling the debris flow as a mixture of a granular phase and a fluid phase. We focus on a demonstration of the capacity of the model to reliably represent the behaviour of the flow at different scales.
Debris flows are fast-flowing events that are saturated with granular material. They naturally...
