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- W2037421921 abstract "This contribution reports on numerical simulations of 2D granular flows on erodible beds. The broad aim is to investigate whether simple flows of model granular matter exhibits spontaneous oscillatory motion in generic flow conditions, and in this case, whether the frictional properties of the contacts between grains may affect the existence or the characteristics of this oscillatory motion. The analysis of different series of simulations show that the flow develops an oscillatory motion with a well-defined frequency which increases like the inverse of the velocity's square root. We show that the oscillation is essentially a surface phenomena. The amplitude of the oscillation is higher for lower volume fractions, and can thus be related to the flow velocity and grains friction properties. The study of the influence of the periodic geometry of the simulation cell shows no significant effect. These results are discussed in relation to sonic sands." @default.
- W2037421921 created "2016-06-24" @default.
- W2037421921 creator A5036260411 @default.
- W2037421921 date "2012-10-17" @default.
- W2037421921 modified "2023-09-25" @default.
- W2037421921 title "Friction and the oscillatory motion of granular flows" @default.
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- W2037421921 doi "https://doi.org/10.1103/physreve.86.041307" @default.
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