title: On the Linear Stability of a Circular Drop Translating in a Hele-Shaw Cell.
abstract: For the buoyancy-driven motion of a drop in a Hele-Shaw cell, a circle is an exact solution for the shape of the drop. The stability of the shape of a circular drop translating in a Hele-Shaw cell under the action of gravity is investigated. It is shown that for nonzero interfacial tension, the circular shape is linearly stable. Copyright 1999 Academic Press.
authors.affiliation: Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802
authors.initials: NR
authors.lastname: Gupta
authors.initials: A
authors.lastname: Nadim
authors.initials: H
authors.lastname: Haj-Hariri
authors.initials: A
authors.lastname: Borhan