Regime transitions in the viscous catenaryA. Zylstra and C. Mitescu
Department of Physics, Pomona College - 610 N. College Ave., Claremont CA 91711, USA
received 7 December 2008; accepted in final form 6 July 2009; published July 2009
published online 30 July 2009
We present studies of the transition between two types of filament evolution in the viscous catenary. In particular we examine the dependence of the observed behavior on the viscosity of the fluid, the initial radius of filament created, and the total length of the fluid. The kinematic viscosity is varied over two orders of magnitude, the filament radius by one order of magnitude, and the filament length by a factor of 3. We observe a clear transition as the so-called catenary number, dependent on the filament radius and length, increases past a certain value, but with no dependence on the viscosity of the fluid. This is a confirmation of theoretical predictions over a significantly greater range of viscosities than previous experiments.
68.03.Cd - Surface tension and related phenomena.
68.03.Kn - Dynamics (capillary waves).
47.20.Gv - Viscous and viscoelastic instabilities.
© EPLA 2009