Downslope granular flow through a forest of obstacles

Autor:	Baptiste Darbois Texier, Yann Bertho, Philippe Gondret
Rok vydání:	2023
Předmět:	Physics - Geophysics Fluid Flow and Transfer Processes Modeling and Simulation Fluid Dynamics (physics.flu-dyn) Computational Mechanics Soft Condensed Matter (cond-mat.soft) FOS: Physical sciences Physics - Fluid Dynamics Condensed Matter - Soft Condensed Matter Geophysics (physics.geo-ph)
Zdroj:	Physical Review Fluids. 8
ISSN:	2469-990X
Popis:	We investigate the effect of a forest of pillars on a granular layer steadily flowing over a rough inclined plane. We quantify experimentally how the steady flow rate of grains is affected by the inter-pillars distance for different layer thicknesses and slope angles. We then propose a model based on a depth-average approximation associated with $\mu(I)$ rheology that considers the additional force exerted by the pillars on the granular layer. This model succeeds in accounting for most of the observed results when taking into account some inertia due to the nonvanishing Froude number of the flow. Comment: 9 pages, 7 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cac459a3962be01ae4bc82f74b581521 https://doi.org/10.1103/physrevfluids.8.034303 Zobrazit plný text záznamu