Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Bjørnar Sandnes"'
Autor:
Dawang Zhang, James M. Campbell, Jon A. Eriksen, Eirik G. Flekkøy, Knut Jørgen Måløy, Christopher W. MacMinn, Bjørnar Sandnes
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Abstract Multiphase flows involving granular materials are complex and prone to pattern formation caused by competing mechanical and hydrodynamic interactions. Here we study the interplay between granular bulldozing and the stabilising effect of visc
Externí odkaz:
https://doaj.org/article/a5c9c05c11a74d5ab6e0844e24868a24
Autor:
Kristian Stølevik Olsen, Eirik Grude Flekkøy, Luiza Angheluta, James Matthew Campbell, Knut Jørgen Måløy, Bjørnar Sandnes
Publikováno v:
New Journal of Physics, Vol 21, Iss 6, p 063020 (2019)
Frictional finger trees are patterns emerging from non-equilibrium processes in particle-fluid systems. Their formation share several properties with growth algorithms for minimum spanning trees (MSTs) in random energy landscapes. We propose that the
Externí odkaz:
https://doaj.org/article/df7ea13c16be4a1ab9cb1fae4697c11e
Publikováno v:
Crystal growthdesign. 22(4)
We use high-speed photography to observe the dendritic freezing of ice between two closely spaced parallel plates. Measuring the propagation speeds of dendrites, we investigate whether there is a confinement-induced thermal influence upon the speed b
Autor:
Miles L. Morgan, Bjørnar Sandnes
Publikováno v:
EPJ Web of Conferences, Vol 249, p 03041 (2021)
Fluid-driven grain flow through a confined channel filled with non-buoyant grains is herein observed to exist in three regimes according to total imposed flow rate. (1) At low imposed flow rates, no grain flow occurs as the fluid stress is insufficie
Silo discharge has been extensively studied for decades although questions remain regarding the nature of the velocity field, particularly for submerged systems. In this work, fluid-driven granular drainage was performed in a quasi-two-dimensional si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cd202c0c246a75fc1b741a5e7090760
http://hdl.handle.net/10852/92554
http://hdl.handle.net/10852/92554
Publikováno v:
Communications Physics, Vol 3, Iss 1, Pp 1-9 (2020)
Recent theoretical and experimental work suggests a frictionless-frictional transition with increasing inter-particle pressure explains the extreme solid-like response of discontinuous shear thickening suspensions. However, analysis of macroscopic di
Confined fluid-driven granular flows are present in a plethora of natural and industrial settings, yet even the most fundamental of these is not completely understood. While widely studied grain flows such as bed load and density-matched Poiseuille f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03d3ec3c6fbafde14dbc1c955f76b271
https://cronfa.swan.ac.uk/Record/cronfa55589/Download/55589__18580__d5fdd8cd4e4a435ea7f3829d140f479f.pdf
https://cronfa.swan.ac.uk/Record/cronfa55589/Download/55589__18580__d5fdd8cd4e4a435ea7f3829d140f479f.pdf
Publikováno v:
Physical Review Fluids
Physical Review Fluids, American Physical Society, 2020, 5 (3), pp.034309. ⟨10.1103/PhysRevFluids.5.034309⟩
Physical Review Fluids, American Physical Society, 2020, 5 (3), pp.034309. ⟨10.1103/PhysRevFluids.5.034309⟩
International audience; The motion of a capillary interface across a deformable granular material in a confined geometry shows the complex interplay between viscous forces, solid friction, and capillary forces. In a horizontal quasi-one-dimensional g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bc8cf79ffcf4a3e4f409952d66cb857
https://cronfa.swan.ac.uk/Record/cronfa53645/Download/53645__16709__f67c2acc38c848ad9d9696455af5fdd5.pdf
https://cronfa.swan.ac.uk/Record/cronfa53645/Download/53645__16709__f67c2acc38c848ad9d9696455af5fdd5.pdf
Publikováno v:
Journal of Fluid Mechanics. 825:502-514
Granular flows such as landslides, debris flows and avalanches are systems of particles with a large range of particle sizes that typically segregate while flowing. The physical mechanisms responsible for this process, however, are still poorly under