Abstract
A simple method is developed for calculating the wall-pressure spectra in turbulent boundary layers. The method is based on the modeling of the wave-number spectrum of the sources that are caused by the interaction of the turbulence-mean shear type. The sources are described in the framework of the semiempirical theory of turbulence. The calculations reveal four characteristic frequency ranges; for these ranges, the specific features of the wall-pressure spectra are determined, and the most general ways of their scaling are found. The calculated spectra and rms values of pressure fluctuations are compared with the experimental data, and a good agreement between the calculations and the experiment is observed.
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Translated from Akusticheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 46, No. 3, 2000, pp. 401–407.
Original Russian Text Copyright © 2000 by Smol’yakov.
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Smol’yakov, A.V. Calculation of the spectra of pseudosound wall-pressure fluctuations in turbulent boundary layers. Acoust. Phys. 46, 342–347 (2000). https://doi.org/10.1134/1.29890
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DOI: https://doi.org/10.1134/1.29890