Measurement of acoustic wave phase velocity by Fourier method in gas-liquid medium

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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Results of measuring the phase velocity of weakly nonlinear waves in a gas-liquid mixture by the Fourier method are presented. The method is based on expansion of time signals, taken from two closely spaced pressure gages in propagation of a single finite pressure pulse, into Fourier series and calculation of the phase shift over the entire frequency series. The method was previously tested in a numerical experiment with the use of the known Korteweg–de Vries equation model. The results of phase velocity measurements show that the method is in good agreement with the theory in a frequency range where the phase incursion is under 2π. The proposed method makes it possible to reconstruct all parameters of polydisperse gas-liquid medium, including those of Landau attenuation analog, by the frequency dependence of the measured phase velocity.

Original languageEnglish
Pages (from-to)330-334
Number of pages5
JournalJournal of Engineering Thermophysics
Volume24
Issue number4
DOIs
Publication statusPublished - 1 Oct 2015
Externally publishedYes

Fingerprint

Fourier Method
Phase Velocity
Phase velocity
Acoustic Waves
phase velocity
Acoustic waves
Liquid
acoustics
Liquids
liquids
liquid-gas mixtures
Gases
gases
pressure gages
Pressure gages
pressure pulses
time signals
Phase measurement
Fourier series
velocity measurement

ASJC Scopus subject areas

  • Environmental Engineering
  • Modelling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Measurement of acoustic wave phase velocity by Fourier method in gas-liquid medium. / Gasenko, V. G.; Gorelik, R. S.; Nakoryakov, V. E.; Timkin, L. S.

In: Journal of Engineering Thermophysics, Vol. 24, No. 4, 01.10.2015, p. 330-334.

Research output: Contribution to journalArticle

Gasenko, V. G. ; Gorelik, R. S. ; Nakoryakov, V. E. ; Timkin, L. S. / Measurement of acoustic wave phase velocity by Fourier method in gas-liquid medium. In: Journal of Engineering Thermophysics. 2015 ; Vol. 24, No. 4. pp. 330-334.
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