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Oscillations of liquid drops: results from USML-1 experiments in Space

Published online by Cambridge University Press:  26 April 2006

T. G. Wang ,
A. V. Anilkumar  and
C. P. Lee
T. G. Wang
Affiliation:
Center for Microgravity Research and Applications, Vanderbilt University, Nashville, TN 37235, USA
A. V. Anilkumar
Affiliation:
Center for Microgravity Research and Applications, Vanderbilt University, Nashville, TN 37235, USA
C. P. Lee
Affiliation:
Center for Microgravity Research and Applications, Vanderbilt University, Nashville, TN 37235, USA
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Abstract

Oscillations of low-viscosity drops were studied in the microgravity environment of a Space shuttle flight. From the damped oscillation data, the inviscid frequency shift, due to nonlinearity, has been extracted using a central-averaging scheme. For the classical case of the oscillations of a free low-viscosity drop, it has been found that the frequency shift agrees well with the predictions of the inviscid nonlinear theory of Tsamopoulos & Brown (1983) for ε < 0.3. But for the oscillations of a rotating low-viscosity drop, under acoustic levitation, the frequency shift is smaller, and the percentage of time spent in prolate displacement is significantly less than that for the classical case.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 308 , 10 February 1996 , pp. 1 - 14
Copyright
© 1996 Cambridge University Press

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