| Issue |
E3S Web of Conf.
Volume 415, 2023
8th International Conference on Debris Flow Hazard Mitigation (DFHM8)
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 4 | |
| Section | Experiments and Modeling | |
| DOI | https://doi.org/10.1051/e3sconf/202341502004 | |
| Published online | 18 August 2023 | |
Keynote lecture. The planar setup: A window through the complex interactions in granular flows
1 Department of Civil and Environmental Engineering, Universidad de los Andes, 111711, Bogotá, Colombia
2 Department of Geoscience & Engineering, TU Delft, 5048, Stevinweg 1, Delft, The Netherlands
* Corresponding author: miguel.cabrera.geo@gmail.com
Granular flows are a complex process, involving a wide range of grain sizes, materials, varied viscous fluids, among others. For this reason, the simulation of granular flows requires a certain level of simplification, allowing the isolated study of its governing variables and extending the global observations to field events. Here, we present the planar setup as an alternative for studying simplified processes associated to granular flows. The planar setup consists of two windows separated by a thin gap and enclosing a granular assembly. We present two examples where the planar setup is adapted for the study of the competing action of segregation and disaggregation in a fractured grain under shear flow, and for the study of the stability scenarios of a flow impacting a permeable obstacle. The close visualization of the kinematics at the particle scale provides an ideal opportunity for describing the mechanisms behind the grain disaggregation or controlling the obstacle stability. Both examples highlight the advantages of the planar setup for the study of granular flows.
© The Authors, published by EDP Sciences, 2023
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