S. Viazzo et al., Spectral features of the wall-pressure fluctuations in turbulent wall flows with and without perturbations using LES, INT J HEA F, 22(1), 2001, pp. 39-52
The statistical properties of the fluctuating wall-pressure field are studi
ed using a numerical database generated by large eddy simulation of incompr
essible turbulent flow in a plane channel (Re-z = 640). Emphasis is given o
n the study of spectral features in the wavevector space and as a function
of frequency, particularly in the region of low wavenumbers that are of maj
or concern in submarine applications. A correction procedure is used to can
cel the artificial pseudo-acoustic effect due to periodic boundary conditio
ns. The influence of superimposed perturbations on one wall of the channel
is considered afterwards in comparison with the non-perturbed case. (C) 200
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