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Title
  • en Particle-like and fluid-like settling of a stratified suspension
Creator
    • en Mitsui, Takashi
    • en Sato, Kodai
Accessrights open access
Rights
  • en The original publication is available at www.eurphysj.org
Subject
  • Other en particle
  • Other en sedimentation
  • Other en Reyleigh-Taylor Instability
Description
  • Abstract en The gravitational settling of inhomogeneously suspended particles in a fluid has been investigated. Of particular interest is whether collective or individual motion of particles is dominant during their settlings, i.e., whether the particles settle as a continuous suspension or they settle individually relative to the surrounding fluid. We observed the settling of a stratified suspension which has the lower and upper concentration interfaces in a quasi-two-dimensional vessel. In some cases, the suspension behaves perfectly as a continuous fluid and the motion of the constituent particle is subject to bulk flow caused by the interfacial instability. In other cases, the particle behaves individually relative to the surrounding fluid. The existence of a concentration interface plays a significant role in these extreme behaviors of suspension. The transition from the collective to individual behaviors can be predicted quantitatively by a parameter which expresses the border resolution of the concentration interface.
Publisher en Springer
Date
    Issued2012-01
Language
  • eng
Resource Type journal article
Version Type AM
Identifier HDL http://hdl.handle.net/2115/48407
Relation
  • isVersionOf DOI https://doi.org/10.1140/epje/i2012-12001-6
  • PMID 22228495
Journal
    • PISSN 1292-8941
    • NCID AA11469024
      • en The European physical journal. E, Soft matter and biological physics
      • Volume Number35 Page Start1
File
Oaidate 2023-07-26