Skip to Main content Skip to Navigation
Journal articles

Self-organized criticality in sheared suspensions

Abstract : Recent studies reveal that suspensions of neutrally buoyant non-Brownian particles driven by slow periodic shear can undergo a dynamical phase transition between a fluctuating irreversible steady state and an absorbing reversible state. Using a computer model, we show that such systems exhibit self-organized criticality when a finite particle sedimentation velocity vs is introduced. Under periodic shear, these systems evolve, without external intervention, towards the shear-dependent critical concentration ϕc as vs is reduced. This state is characterized by power-law distributions in the lifetime and size of fluctuating clusters. Experiments exhibit similar behavior and, as vs is reduced, yield steady-state values of ϕ that tend towards the ϕc corresponding to the applied shear.
Document type :
Journal articles
Complete list of metadata

https://hal-mines-paristech.archives-ouvertes.fr/hal-00523235
Contributor : Bibliothèque Umr7633 <>
Submitted on : Monday, October 4, 2010 - 3:42:42 PM
Last modification on : Thursday, September 24, 2020 - 6:30:04 PM

Links full text

Identifiers

Citation

Laurent Corté, D.J. Pine, S.J. Gerbode, W. Man. Self-organized criticality in sheared suspensions. Physical Review Letters, American Physical Society, 2009, 103 (248301), 4 p. ⟨10.1103/PhysRevLett.103.248301⟩. ⟨hal-00523235⟩

Share

Metrics

Record views

218