Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2001-06-29
Physics
Condensed Matter
Soft Condensed Matter
6 pages
Scientific paper
We study the oscillation spectrum and acoustic properties of a liquid drop in the 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., as the growth coefficient becomes comparable with a reciprocal of the 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 for the sound velocity and absorption coefficient in a two-phase suspension.
Burmistrov S. N.
Satoh Takao
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