Analysis and Characterization of Flow-Generated Sound

Dominik Surek

doi:10.4236/ajcm.2013.34046

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American Journal of Computational Mathem... > Vol.3 No.4, December 2013

Analysis and Characterization of Flow-Generated Sound ()

Dominik Surek

An-Institut Fluid- und Pumpentechnik Merseburg, Geusaer Stra?e, Merseburg, Germany.

DOI: 10.4236/ajcm.2013.34046 PDF HTML XML 2,734 Downloads 4,143 Views Citations

Abstract

Flow-generated sound and velocity distributions of free flows are characterized by frequency spectra (FFT and several spectra from the octave spectrum over the one-third octave spectrum till the narrow band spectrum), by the PSD (power spectrum density) and wavelets. Whereas previously, flow processes are characterized by the average velocity, by the local velocity, if needed also by the three-dimensional velocity distribution and the degree of turbulence, also the flows and particular velocity distributions could be described by the acoustic pressure and level, by the power spectrum density and by wavelets, especially by the Gabor-Wavelet, as shown below.

Keywords

Fluid Flow; Fluids; Akustics; Spectrum; Wavelets

Share and Cite:

D. Surek, "Analysis and Characterization of Flow-Generated Sound," American Journal of Computational Mathematics, Vol. 3 No. 4, 2013, pp. 362-367. doi: 10.4236/ajcm.2013.34046.

Conflicts of Interest

The authors declare no conflicts of interest.

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