期刊
PHYSICAL REVIEW E
卷 81, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.81.046305
关键词
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资金
- National Natural Science Foundation of China [50121101, 50395105, 50301012]
- Foundation for the Author of National Excellent Doctorial Dissertation of China
We report experiments in which the nonaxisymmetric sectorial oscillations of water drops have been excited using acoustic levitation and an active modulation method. The observed stable sectorial oscillations are up to the seventh mode. These oscillations are excited by parametric resonance. The oblate initial shape of the water drops is essential to this kind of excitations. The oscillation frequency increases with mode number but decreases with equatorial radius for each mode number. The data can be well described by a modified Rayleigh equation, without the use of additional parameters.
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