HAIT Journal of Science and Engineering
Volume 1, Issue 2, pp. 287-296
© 2004 Holon Academic Institute of Technology

 

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.


PACS: 67.60.-g, 62.60.+v, 68.05.-n

 

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Presented at Russian-Israeli Conference Frontiers in Condensed Matter Physics
Shoresh, Israel, 19-24 October 2003


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