Review of Turbulent Boundary Layer Models for Acoustic Analysis

A survey of the available turbulent boundary layer models for acoustic analysis is presented. The empirical mean square pressure models predict a relatively large spread in the values; bounded on the high end by Kraichnan and on the low end by Bull, and Willmarth and Wooldridge. The single point wall pressure spectrum models are evaluated and the two more modern models of Smol’yakov and Goody seem to perform the best. Important features of the normalized wavenumber-frequency spectrum models are presented. Separable models in the Corcos class tend to over-predict the response for a range of cases.