Journal
PHYSICS OF FLUIDS
Volume 12, Issue 2, Pages 249-251Publisher
AMER INST PHYSICS
DOI: 10.1063/1.870326
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Experimental evidence of internal dc flow circulation within an electrostatically levitated, 3.4 mm diameter charged water drop oscillating in shape at a different amplitude is presented. The axisymmetric shape oscillations were excited using a continuously pulsed electrostatic field at the fundamental shape mode frequency (l=2) of the drop. It was found that the speed of the internal dc flow varied quadratically with respect to the oscillation amplitude without an observable minimum threshold. The implication of the observed internal flow is discussed with respect to the microgravity research facility and environment. (C) 2000 American Institute of Physics. [S1070-6631(00)02702-1].
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