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Flow, ordering, and jamming of sheared granular suspensions
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Grebenkov, Denis S., Ciamarra, Massimo Pica, Nicodemi, Mario and Coniglio, Antonio (2008) Flow, ordering, and jamming of sheared granular suspensions. Physical Review Letters, Volume 100 (Number 7). Article No. 078001. doi:10.1103/PhysRevLett.100.078001 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.100.078001
Abstract
We study the rheological properties of a granular suspension subject to constant shear stress by constant volume molecular dynamics simulations. We derive the system "flow diagram" in the volume fraction or stress plane (phi, F): at low phi the flow is disordered, with the viscosity obeying a Bagnold-like scaling only at small F and diverging as the jamming point is approached; if the shear stress is strong enough, at higher phi an ordered flow regime is found, the order-disorder transition being marked by a sharp drop of the viscosity. A broad jamming region is also observed where, in analogy with the glassy region of thermal systems, slow dynamics followed by kinetic arrest occurs when the ordering transition is prevented.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Suspensions (Chemistry), Granular materials, Rheology, Molecular dynamics -- Computer simulation | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 22 February 2008 | ||||
Dates: |
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Volume: | Volume 100 | ||||
Number: | Number 7 | ||||
Number of Pages: | 4 | ||||
Page Range: | Article No. 078001 | ||||
DOI: | 10.1103/PhysRevLett.100.078001 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | European Union (EU) | ||||
Grant number: | MRTN-CT-2003-504712 (EU) |
Data sourced from Thomson Reuters' Web of Knowledge
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