Journal
PHYSICS OF FLUIDS
Volume 13, Issue 12, Pages 3533-3541Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1409369
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We present experimental results on the snap-off dynamics of a drop with viscosity lambda eta dripping through a fluid of viscosity eta. This paper focuses on the Stokes regime where both the inner and outer fluid viscous stresses are balanced by the pressure gradients arising from the interfacial curvature. We track the time dependence of the drop profiles near snap-off and find that successive profiles can be rescaled onto a single curve. We explore the dependence of this scaling on the nozzle diameter, surface tension, density mismatch, and viscosity ratio lambda. We find that only lambda affects the rescaled profile. Finally we investigate the dependence of the breaking rate on lambda. (C) 2001 American Institute of Physics.
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