The harmonic torsional oscillations of a thin disk submerged in a fluid with a surfactant surface layer

Chakrabarthi, A and Gooden, DK and Shail, R (1982) The harmonic torsional oscillations of a thin disk submerged in a fluid with a surfactant surface layer. In: Journal of Colloid and Interface Science, 88 (2). pp. 407-419.

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Abstract

A formulation in terms of a Fredholm integral equation of the first kind is given for the axisymmetric problem of a disk oscillating harmonically in a viscous fluid whose surface is contaminated with a surfactant film. The equation of the first kind is converted to a pair of coupled integral equations of the second kind, which are solved numerically. The resistive torque on the disk is evaluated and surface velocity profiles are computed for varying values of the ratio of the coefficient of surface shear viscosity to the coefficient of viscosity of the substrate fluid, and the depth of the disk below the surface.

Item Type:	Journal Article
Publication:	Journal of Colloid and Interface Science
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Physical & Mathematical Sciences > Mathematics
Date Deposited:	01 Sep 2009 05:59
Last Modified:	19 Sep 2010 05:43
URI:	http://eprints.iisc.ac.in/id/eprint/22718

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