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Title
  • en Dependence of fragmentation behavior of colloidal aggregates on their fractal structure
Creator
    • en Tanaka, R.
    • en Nogami, H.
    • en Sawada, M.
Accessrights open access
Subject
  • Other en Aggregate
  • Other en Breakup
  • Other en Shear flow
  • Other en Numerical analysis
  • Other en Restructuring
  • Other en Stokesian dynamics
  • NDC 423
Description
  • Abstract en The fragmentation dynamics of aggregate of non-Brownian particles in shear flow is investigated numerically. The breakup behaviors of aggregates having the same connectivity but the different space-filling properties are examined. The Lagrangian particle simulation in a linear flow field is performed. The effect of surrounding fluid on the motion of multiple particles is estimated by Stokesian dynamics approach. The inter-particle force is calculated from the retarded van der Waals potential based on the Lifshitz theory. The results obtained in this work indicate that the fragmentation behavior of colloidal aggregates depends on their fractal structure. However, if the resultant aggregate size is smaller than the critical one, the fragmentation behavior shows the universality regardless of their original structure. Furthermore, the restructuring of aggregate in shear flow and its effect on the fragmentation process are also discussed.
Publisher en Elsevier Inc.
Date
    Issued2006-09-01
Language
  • eng
Resource Type journal article
Version Type AM
Identifier HDL http://hdl.handle.net/2115/14634
Relation
  • URI http://www.sciencedirect.com/science/journal/00219797
  • isVersionOf DOI https://doi.org/10.1016/j.jcis.2006.04.051
  • PMID 16697393
Journal
    • PISSN 0021-9797
      • en Journal of Colloid and Interface Science
      • Volume Number301 Issue Number1 Page Start123 Page End129
File
Oaidate 2023-07-26