Abstract
The spectral characteristics of turbulent pressure pulsations arising from the flow around an autonomous marine laboratory have been measured. The autonomous marine laboratory is an upgraded Dolphin buoyant device, equipped with modern digital facilities for autonomous recording, which extends the frequency range of the signals under study up to 50–60 kHz. The power spectra and cross spectra of turbulent pressure pulsations have been measured at different points of the measuring section by point pressure transducers 1.3 or 20 mm in diameter at a speed of the autonomous marine laboratory of 8–22 m/s. The measurements have revealed unexpected behavioral features of the spectra (their inflection points) at high frequencies. An analysis is performed to explain these features. In particular, it is shown that the correction function based on the more complex cross spectrum model (in comparison with the Corcos cross spectrum model) developed by Smol’yakov in 2006 predicts a monotonic (without inflection points) decrease in the spectral levels at high frequencies for reconstructed (corrected) spectra.
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References
Underwater Technologies and Means of World Ocean Mastering (Oruzhie i tekhnologii, Moscow, 2011) [in Russian].
G. Haddle and E. Skudrzyk, in Underwater Acoustics, Ed. by V. M. Albers (Plenum Press, New York, 1963).
G. Haddle and E. Skudrzyk, J. Acoust. Soc. Am. 46, 130 (1969).
A. V. Smol’yakov and V. M. Tkachenko, Measurements of Turbulent Pulsations (Energiya, Leningrad, 1980) [in Russian].
W. W. Willmarth, Annal Review of Fluid Mechanics 7, 13 (1975).
E. B. Kudashev, Acoust. Phys. 51, 414 (2005).
E. B. Kudashev and L. R. Yablonik, Turbulent Near-Wall Pressure Pulsations (Nauchnyi Mir, Moscow, 2007) [in Russian].
G. M. Corcos, J. Acoust. Soc. Am. 35, 192 (1963).
A. V. Smol’yakov, Turbulent Flow Noise (TsNII im. akad. Krylova, St. Petersburg, 2005) [in Russian].
A. V. Smol’yakov, Acoust. Phys. 52, 331 (2006).
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Dedicated to the memory of prominent researcher in the field of aerohydrodynamic acoustics, Honored Scientist of the Russian Federation, Doctor of Technical sciences, Professor A.V. Smol’yakov
Original Russian Text © E.B. Kudashev, V.A. Kolyshnitsyn, V.P. Marshov, V.M. Tkachenko, A.M. Tsvetkov, 2013, published in Akusticheskii Zhurnal, 2013, Vol. 59, No. 2, pp. 211–221.
An erratum to this article is available at http://dx.doi.org/10.1134/S1063771014080016.
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Kudashev, E.B., Kolyshnitsyn, V.A., Marshov, V.P. et al. Experimental simulation of hydrodynamic flow noises in an autonomous marine laboratory. Acoust. Phys. 59, 187–196 (2013). https://doi.org/10.1134/S1063771013020097
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DOI: https://doi.org/10.1134/S1063771013020097