Picture of scraped petri dish

Scrape below the surface of Strathprints...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Explore world class Open Access research by researchers at Strathclyde, a leading technological university.

Explore

The Linear stability of a drop of fluid during spin coating or subject to a jet of air

McKinley, I.S. and Wilson, S.K. (2002) The Linear stability of a drop of fluid during spin coating or subject to a jet of air. Physics of Fluids, 14 (1). pp. 133-142. ISSN 1070-6631

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

In this paper we investigate the linear stability of an initially axisymmetric thin drop of Newtonian fluid either on a uniformly rotating substrate (the simplest model for spin coating) or on a stationary substrate under the influence of an axisymmetric jet of air directed normally towards the substrate. Drops both with and without a dry patch at their center are considered. For each problem we examine both the special case of quasistatic motion (corresponding to zero capillary number) analytically and the general case of nonzero capillary number numerically. In all cases the drop is found to be unconditionally unstable, but the growth rate and wavenumber of the most unstable mode depend on the details of the specific problem considered.¦#169;2002 American Institute of Physics.