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 language | English |
|---|---|
| Pages (from-to) | 330-334 |
| Number of pages | 5 |
| Journal | Journal of Engineering Thermophysics |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Oct 2015 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Measurement of acoustic wave phase velocity by Fourier method in gas-liquid medium
AU - Gasenko, V. G.
AU - Gorelik, R. S.
AU - Nakoryakov, V. E.
AU - Timkin, L. S.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - 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.
AB - 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.
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U2 - 10.1134/S1810232815040049
DO - 10.1134/S1810232815040049
M3 - Article
VL - 24
SP - 330
EP - 334
JO - Journal of Engineering Thermophysics
JF - Journal of Engineering Thermophysics
SN - 1810-2328
IS - 4
ER -