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The evolution and bifurcation of a pendant drop

Published online by Cambridge University Press:  26 April 2006

R. M. S. M. Schulkes
Affiliation:
School of Mathematics, University of East Anglia, Norwich NR4 7TJ, UK

Abstract

In this paper we calculate how a pendant drop evolves at the end of a nozzle when the volume of the drop increases steadily with time. We find that the character of the evolution is strongly dependent on the growth rate of the drop and the radius of the nozzle. Typically we find that once the drop has become unstable, two bifurcations occur shortly after each other when the growth rate of the drop is slow. For large growth rates the bifurcations are well-separated in time. We are able to calculate the volumes of the drops after the bifurcations. A comparison with experimental data shows a satisfactory agreement.

Type
Research Article
Copyright
© 1994 Cambridge University Press

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References

Eggers, J. 1993 Universal pinching of 3D axisymmetric free-surface flow. Phys. Rev. Lett. 71, 34583460.Google Scholar
Eggers, J. & Dupont, T. F. 1994 Drop formation in a one-dimensional approximation of the Navier-Stokes equation. J. Fluid Mech. 262, 205222.Google Scholar
Fritz, W. 1935 Berechnung des maximale Volume von Dampfblasen. Phys. Z. 36, 379384.Google Scholar
Guthrie, C. 1863 Proc. R. Soc. Lond. 8, 444.
Harkins, W. D. & Brown, F. E. 1919 The determination of surface tension (free surface energy) and the weight of falling drops: The surface tension of water and benzene by the capillary height method. J. Am. Chem. Soc. 41, 499524.CrossRefGoogle Scholar
Hauser, E. A., Edgerton, H. E., Holt, B. M. & Cox, J. T. 1936 The application of the high-speed motion picture camera to research on the surface tension of liquids. J. Phys. Chem. 40, 973988.Google Scholar
Keller, J. B. & Miksis, M. J. 1983 Surface tension driven flows. SIAM J. Appl. Maths 43, 268277.Google Scholar
Lee, H. C. 1974 Drop formation in a liquid jet. IBM J. Res. Dev. 18, 364369.Google Scholar
Oǵtuz, H. N. & Prosperetti, A. 1993 Dynamics of bubble growth and detachment from a needle. J. Fluid Mech. 257, 111145.Google Scholar
Padday, J. & Pitt, A. R. 1973 The stability of axisymmetric menisci. Phil. Trans. R. Soc. Lond. A 275, 489528.Google Scholar
Peregrine, D. H., Shoker, G. & Symon, A. 1990 The bifurcation of liquid bridges. J. Fluid Mech. 212, 2539.Google Scholar
Rayleigh, Lord 1989 Investigations in capillarity. Phil. Mag. 48, 321337.Google Scholar
Schulkes, R. M. S. M. 1993 Nonlinear dynamics of liquid columns: a comparative study. Phys. Fluids A 5, 21212130.Google Scholar
Schulkes, R. M. S. M. 1994 The evolution of capillary fountains. J. Fluid Mech. 261, 223252.Google Scholar
Tate, T. 1864 On the magnitude of a drop of liquid formed under different circumstances. Phil. Mag. 27, 176180.Google Scholar
Ting, L. & Keller, J. B. 1990 Slender jets and thin sheets with surface tension. SIAM J. Appl. Maths 50, 15331546.Google Scholar
Worthington, A. M. 1881 Proc. R. Soc. Lond. 32, 362.