Numerical calculations of wall pressure spectra for equilibrium turbulent boundary layers
Abstract
The streamwise wavenumber spectra of wall pressure fluctuations are numerically calculated by using the profiles of mean velocity gradient, vertical turbulent intensity, and vertical velocity correlation which have already been obtained by various investigators. The formulations of convective velocities obtained by Panton and Linebarger (1974) are employed in the transformations of wavenumber spectra into frequency spectra. The transformed frequency spectra show good agreement with the experimental results by Willmarth and Wooldridge (1962) for a zero pressure gradient and by Bradshaw (1967) for an adverse pressure gradient. It is found that the streamwise anisotropy of velocity correlation in turbulent boundary layer increases the level of the spectra in low wavenumbers. Moreover, the effect of downstream pressure gradient is found to be equivalent to that of the anisotropy of the turbulence.
 Publication:

Kyushu University Technology Reports
 Pub Date:
 August 1983
 Bibcode:
 1983KyUTR..56..429M
 Keywords:

 Computational Fluid Dynamics;
 Equilibrium Flow;
 Flow Velocity;
 Turbulent Boundary Layer;
 Wall Pressure;
 Monte Carlo Method;
 Pressure Gradients;
 Velocity Distribution;
 Fluid Mechanics and Heat Transfer