Precursors in gas-liquid mixtures

V. G. Gasenko, R. S. Gorelik, V. E. Nakoryakov, L. S. Timkin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Two types of precursors propagating at the speed of sound in a pure liquid have been revealed in the experiments on the evolution of pressure pulses in a gas-liquid mixture; at the same time, the main pressure pulse propagates at a low equilibrium speed of sound and its evolution is described by the Burgers-Korteweg-de Vries equation. The first high-frequency precursor is a complete analog of a classical Sommerfeld precursor, because the resonance dispersion equation for a bubble mixture coincides with that for insulators in the Lorentz model, and oscillates at a frequency close to the "plasma frequency." The second low-frequency precursor has been revealed in this work. The frequency of the low-frequency precursor is close to the resonance frequency of pulsations of bubbles, which is almost an order of magnitude lower than the frequency of the high-frequency precursor. The low-frequency precursor has a much larger amplitude of pulsations and smaller damping and is not described within the homogeneous model of the gas-liquid mixture. The observed phenomenon of low-frequency precursors has been explained within a simple heterogeneous model of a bubble liquid.

Original languageEnglish
Pages (from-to)195-200
Number of pages6
JournalJETP Letters
Volume98
Issue number4
DOIs
Publication statusPublished - Oct 2013
Externally publishedYes

Fingerprint

liquid-gas mixtures
low frequencies
pressure pulses
bubbles
acoustics
plasma frequencies
liquids
damping
insulators
analogs

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Gasenko, V. G., Gorelik, R. S., Nakoryakov, V. E., & Timkin, L. S. (2013). Precursors in gas-liquid mixtures. JETP Letters, 98(4), 195-200. https://doi.org/10.1134/S0021364013170049

Precursors in gas-liquid mixtures. / Gasenko, V. G.; Gorelik, R. S.; Nakoryakov, V. E.; Timkin, L. S.

In: JETP Letters, Vol. 98, No. 4, 10.2013, p. 195-200.

Research output: Contribution to journalArticle

Gasenko, VG, Gorelik, RS, Nakoryakov, VE & Timkin, LS 2013, 'Precursors in gas-liquid mixtures', JETP Letters, vol. 98, no. 4, pp. 195-200. https://doi.org/10.1134/S0021364013170049
Gasenko VG, Gorelik RS, Nakoryakov VE, Timkin LS. Precursors in gas-liquid mixtures. JETP Letters. 2013 Oct;98(4):195-200. https://doi.org/10.1134/S0021364013170049
Gasenko, V. G. ; Gorelik, R. S. ; Nakoryakov, V. E. ; Timkin, L. S. / Precursors in gas-liquid mixtures. In: JETP Letters. 2013 ; Vol. 98, No. 4. pp. 195-200.
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