Tenth International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP10
COMPUTATION OF WALL PRESSURE SPECTRA FROM CFD RANS SOLUTIONS INDUCED BY INCOMPRESSIBLE TURBULENT BOUNDARY LAYERS
pages 395-399
DOI: 10.1615/TSFP10.680
RESUMO
A method is developed to compute the wall pressure spectrum under a turbulent boundary layer based on RANS solutions. High- Reynolds number flows, such as the ones encountered in naval architecture studies, are considered. The model solves a specific equation for the wall pressure, based on the integral solution of a Poisson equation. A new model is proposed, the Extended Anisotropic Model (EAM), for the space-time velocity correlations which are necessary in order to close the equation. The method is applied to a turbulent boundary layer flow over a flat plate and satisfying results are obtained for the frequency pressure spectrum.