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Article
Stable Drop Shapes under Disjoining Pressure: III. Sharp Contact Lines
Journal of Colloid and Interface Science
  • Partho Neogi, Missouri University of Science and Technology
Abstract

The shape and stability of a drop with a sharp contact line are analyzed. The disjoining pressure is included. The choice made for the latter is special in that it admits a sharp contact angle as appropriate in this case. The stability analysis is considered for two scenarios, one where the contact line cannot be moved which mode turns out to be stable to small perturbations, and the other where it can be moved but the contact angle is fixed at the equilibrium value. This second case turns out to be unstable to small perturbations due to the curvature effect of the drop.

Department(s)
Chemical and Biochemical Engineering
Keywords and Phrases
  • Disjoining Pressure,
  • Nonwetting Drops,
  • Stability
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2003 Elsevier, All rights reserved.
Publication Date
9-1-2003
Publication Date
01 Sep 2003
Disciplines
Citation Information
Partho Neogi. "Stable Drop Shapes under Disjoining Pressure: III. Sharp Contact Lines" Journal of Colloid and Interface Science (2003) ISSN: 0021-9797
Available at: http://works.bepress.com/partho-neogi/65/