Abstract
The paper considers the problem of recording the spectral components of the frequency spectrum of near-wall turbulent pressures under the effect of acoustic noise. The previously proposed method for measuring pressure fluctuations on an acoustic noise background uses a two-element pressure transducer that wave-filters the measured turbulent fluctuation field. Here, we analytically investigate the wave properties of a two-element transducer in the turbulent pressures field. With proper selection of the characteristics, the proposed pressure fluctuation receiver, due to its wave properties, can cut off the acoustic noise contribution to the measurement results. The parameters and relations determining the conditions for efficient acoustic noise suppression are established.
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REFERENCES
W. W. Willmarth, Annu. Rev. Fluid Mech. 7, 13 (1975).
H. Eckelmann, in Near-Wall Turblence. Proc. 1988 Zoran Zaric Memorial Conf., Ed. by S. Kline and N. H. Afgan (Hemsphere, New York, 1990), p. 328.
M. K. Bull, J. Sound Vib. 190 (3), 299 (1996).
W. K. Blake, Mechanics of Flow-Induced Sound and Vibration (Acad. Press, New York, 1986), Vols. 1, 2.
A. V. Smol’yakov, Turbulent Flows Noise (Krylov State Research Centre, St. Petersburg, 2005) [in Russian].
E. B. Kudashev and L. R. Yablonik, Turbulent Wall Pressure Fluctuation (Nauchnyi mir, Moscow, 2007) [in Russian].
F. Fahy and J. Walker, Advanced Applications in Acoustics, Noise and Vibration (Spon, London, 2004).
L. A. Bazhenova, Acoust. Phys. 64 (3), 356 (2018).
B. Arguillat, D. Ricot, C. Bailly, and G. Robert, J. Acoustic. Soc. Am. 128 (4), 1647 (2010).
O. P. Bychkov and G. A. Faranosov, Acoust. Phys. 66 (1), 33 (2020).
E. B. Kudashev, Acoust. Phys. 49 (5), 545 (2003).
E. B. Kudashev and I. D. Vereb’evskii, in Hydrodynamic Calculation Research. Scientific Works of the USSR Metrological Institutes (Izd. Standartov, Moscow, 1975), Issue 157 (217), p. 107 [in Russian].
E. B. Kudashev and L. R. Yablonik, Izv. Vyssh. Uchebn. Zaved., Energ., No. 8, 77 (1986).
G. M. Corcos, J. Acoust. Soc. Am. 35, 192 (1963).
B. M. Efimtsov, Akust. Zh. 28 (4), 491 (1982).
A. V. Smol’yakov and V. M. Tkachenko, Akust. Zh. 37 (6), 1199 (1991).
D. J. J. Leclerq and X. Bohineust, J. Sound Vib. 257, 477 (2002).
J. Van Blitterswyk and J. Rocha, J. Acoust. Soc. Am. 141 (2), 1257 (2017).
A. Yu. Golubev, E. B. Kudashev, and L. R. Yablonik, Turbulent Pressure Fluctuation in Acoustics and Aerohydrodynamics (Fizmatlit, Moscow, 2019) [in Russian].
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The study was supported by the Russian Foundation for Basic Research (project no. 20-02-00181-a).
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Kudashev, E.B., Yablonik, L.R. Recording the Frequency Spectrum of Near-Wall Turbulent Pressures on an Acoustic Noise Background. Acoust. Phys. 66, 633–638 (2020). https://doi.org/10.1134/S1063771020050073
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DOI: https://doi.org/10.1134/S1063771020050073