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Friction dependence of shallow granular flows from discrete par-ticle simulations
 

Summary: Friction dependence of shallow granular flows from discrete par-
ticle simulations
Anthony Thornton1,2,
, Thomas Weinhart1,2
, Stefan Luding1
and Onno Bokhove2
1
Multi-Scale Mechanics, Dept. of Mechanical Engineering, Univ. of Twente, The Netherlands
2
Numerical Analysis and Computational Mechanics, Dept. of Appl. Mathematics, Univ. of Twente, The Netherlands

P.O. Box 217, 7500 AE Enschede, The Netherlands, Tel.: +31 53 489 3301, Fax: +31 53 489 4833,
a.r.thornton@utwente.nl
PACS 47.57.Gc Complex fluids and colloidal systems: Granular flow
PACS 45.70.Ht Granular systems: Avalanches
PACS 83.80.Fg Rheology: Granular solids
Abstract A shallow-layer model for granular flows is completed with a closure relation for the
macroscopic bed friction or basal roughness obtained from micro-scale discrete particle simulations
of steady flows. We systematically vary the bed friction by changing the contact friction coefficient
between basal and flowing particles, while the base remains geometrically rough. By simulating

  

Source: Al Hanbali, Ahmad - Department of Applied Mathematics, Universiteit Twente

 

Collections: Engineering