Chalk, CM, Peakall, J, Keevil, G and Fuentes, R
(2021)
Spatial and temporal evolution of an experimental debris flow, exhibiting coupled fluid and particulate phases.
ACTA GEOTECHNICA, 17 (3).
pp. 965-979.
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Abstract
<jats:title>Abstract</jats:title><jats:p>The internal behaviour of debris flows provides fundamental insight into the mechanics responsible for their motion. We provide robust velocity data within a small-scale experimental debris flow, consisting of the instantaneous release of a granular material along a rectangular flume, inclined at <jats:inline-formula><jats:alternatives><jats:tex-math>$$31^{\circ }$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mn>31</mml:mn> <mml:mo>∘</mml:mo> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula>. The results show a unique layered transition from a collisional, turbulent front to a non-fluctuating viscous-type flow body, exhibiting strong fluid-particulate coupling. This is the first time that the internal dynamics have been documented within the full architecture of a developing experimental debris flow, from the head to the tail.</jats:p>
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Debris flows, Flume experiments, Particle image velocimetry, Two-phase flow |
| Divisions: | Faculty of Science and Engineering > School of Environmental Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 20 Jul 2021 06:34 |
| Last Modified: | 18 Jan 2023 21:35 |
| DOI: | 10.1007/s11440-021-01265-y |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3130598 |
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