Stable Drop Shapes under Disjoining Pressure: III. Sharp Contact Lines

Author

Partho Neogi, Missouri University of Science and TechnologyFollow

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.

Recommended Citation

P. Neogi, "Stable Drop Shapes under Disjoining Pressure: III. Sharp Contact Lines," Journal of Colloid and Interface Science, Elsevier, Sep 2003.

The definitive version is available at https://doi.org/10.1016/S0021-9797(03)00484-3

Department(s)

Chemical and Biochemical Engineering

Keywords and Phrases

Disjoining Pressure; Nonwetting Drops; Stability

International Standard Serial Number (ISSN)

0021-9797

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2003 Elsevier, All rights reserved.

Publication Date

01 Sep 2003