Impulsive Motion of Viscous, Axisymmetric Liquid Bridges

Abstract

This paper deals with the dynamics of isothermal, axisymmetric, viscous liquid columns held by capillary forces between two circular, concentric, solid disks. The transient response of the bridge to an excitation consisting of a small change in the value of the acceleration acting along its axis has been considered. To compare, existing theoretical results with experimental ones a ntunber of experiments have been performed; in tliese experiments, a small liquid bridge with its axis placed vertically was suddenly displaced downwards for a small distance and the response of the interface recorded, the agreement behveen theoretical and experimental results (damping time constant) being good enough.