Skip to Main content Skip to Navigation
Journal articles

Pattern formation of frictional fingers in a gravitational potential

Abstract : Aligned finger structures, with a characteristic width, emerge during the slow drainage of a liquid-granular mixture in a tilted Hele-Shaw cell. A transition from vertical to horizontal alignment of the finger structures is observed as the tilting angle and the granular density are varied.An analytical model is presented, demonstrating that the alignment properties are the result of the competition between fluctuating granular stresses and the hydrostatic pressure. The dynamics is reproduced in simulations.We also show how the system explains patterns observed in nature, created during the early stages of a dike formation.
Complete list of metadata

Cited literature [41 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01685526
Contributor : Renaud Toussaint <>
Submitted on : Tuesday, January 16, 2018 - 2:48:26 PM
Last modification on : Wednesday, June 9, 2021 - 3:26:02 PM
Long-term archiving on: : Monday, May 7, 2018 - 5:31:31 AM

File

2018-JonAlmEriksen-PRFluids-pr...
Files produced by the author(s)

Identifiers

Collections

Citation

Jon Alm Eriksen, Renaud Toussaint, Knut Jørgen Måløy, Eirik Flekkøy, Olivier Galland, et al.. Pattern formation of frictional fingers in a gravitational potential. Physical Review Fluids, American Physical Society, 2018, 3 (1), pp.013801. ⟨10.1103/PhysRevFluids.3.013801⟩. ⟨hal-01685526⟩

Share

Metrics

Record views

205

Files downloads

410