Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Frey Philippe"'
Publikováno v:
E3S Web of Conferences, Vol 40, p 04013 (2018)
In order to study vertical grain size sorting in bedload sediment transport, numerical experiments of two-size particle mixtures were carried out, using a validated coupled fluid-discrete element model developed at Irstea. A 3D 10% steep domain, cons
Externí odkaz:
https://doaj.org/article/702f2b7cebda46beb6847b414c07325e
Publikováno v:
EPJ Web of Conferences, Vol 140, p 09025 (2017)
In order to gain understanding of kinetic sieving-type segregation in bedload sediment transport, numerical experiments of two-size particle mixtures were carried out, using a validated coupled fluid-discrete element model developed at Irstea. A 3D 1
Externí odkaz:
https://doaj.org/article/51e3845bb0b6466da94bc57fb6b22059
Publikováno v:
Phys. Rev. Fluids 5, 114307 (2020)
The flow of segregated bidisperse assemblies of particles is of major importance for geophysical flows and bedload transport in particular. In the present paper, the mobility of bidisperse segregated particle beds was studied with a coupled fluid dis
Externí odkaz:
http://arxiv.org/abs/2009.00898
Gravity-driven size segregation is important in mountain streams where a wide range of grain sizes are transported as bedload. More particularly, vertical size segregation is a multi-scale process that originates in interactions at the scale of parti
Externí odkaz:
http://arxiv.org/abs/2005.09435
Akademický článek
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Size segregation in bedload transport is studied numerically with a coupled fluid-discrete element model. Starting from an initial deposit of small spherical particles on top of a large particle bed, the segregation dynamics of the bed is studied as
Externí odkaz:
http://arxiv.org/abs/1909.07687
Gravity-driven turbulent bedload transport has been extensively studied over the past century in regard to its importance for Earth surface processes such as natural riverbed morphological evolution. In the present contribution, the influence of the
Externí odkaz:
http://arxiv.org/abs/1701.02665
Publikováno v:
Physics of Fluids 27, 113302 (2015)
A minimal Lagragian two-phase model to study turbulent bedload transport focusing on the granular phase is presented, and validated with experiments. The model intends to describe bedload transport of massive particles in fully rough flows at relativ
Externí odkaz:
http://arxiv.org/abs/1605.06085
Publikováno v:
Journal of Fluid Mechanics, 804, pp. 490-512 (2016)
The local granular rheology is investigated numerically in turbulent bedload transport. Considering spherical particles, steady uniform configurations are simulated using a coupled fluid-discrete-element model. The stress tensor is computed as a func
Externí odkaz:
http://arxiv.org/abs/1602.06712
Akademický článek
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