Oscillations of liquid drops: results from USML-1 experiments in Space
1996; Cambridge University Press; Volume: 308; Linguagem: Inglês
10.1017/s002211209600136x
ISSN1469-7645
AutoresT. G. Wang, A. V. Anilkumar, C. P. Lee,
Tópico(s)Fluid Dynamics and Heat Transfer
ResumoOscillations 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.
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