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HAIT Journal of Science and Engineering Volume 1, Issue 2, pp. 287-296 © 2004 Holon Academic Institute of Technology | ||||||
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Vibrational and acoustical properties of a liquid drop in the phase-separated 3He-4He fluid with a highly mobile interface
Haruka Abe1, Serguei N. Burmistrov1,2,*, and Takeo Satoh1
1Tohoku University, Sendai 980, Japan | 2Kurchatov Institute, Moscow 123182, Russia *Corresponding author: burmi@kurm.polyn.kiae.su Received 24 October 2003, accepted 10 April 2004
| We have studied the oscillation spectrum and acoustic properties of a liquid drop in a phase-separated fluid when the interfacial dynamics of phase conversion can be described in terms of the kinetic growth coefficient. For a readily mobile interface, i.e., for the growth coefficient comparable with the reciprocal acoustic impedance, anomalous behavior is found in the oscillation spectrum of a drop, as well as in the velocity and absorption of a sound wave propagating through a suspension of drops in the two- phase system. Compared with the known case of two immiscible fluids, the high interface mobility leads to an anomalous softening of the radial drop pulsations and to the frequency- and temperature-dependent behavior of the sound velocity and absorption coefficient in a two-phase suspension.
___________________ | Presented at Russian-Israeli Conference Frontiers in Condensed Matter Physics Shoresh, Israel, 19-24 October 2003 |