Power injected into a rectangular plate excited by a turbulent boundary layer
Résumé
The excitation of structures by turbulent boundary layers has been intensively studied and different models have been established to describe the boundary pressure cross spectrum. When dealing with energy methods like Statistical Energy Analysis (SEA), one is more interested by boundary layer power injected than boundary pressure cross spectrum. This paper deals with derivation of a model for injected power in a plate excited by turbulent boundary layer . For sake of simplicity, it's based on Corcos' model for boundary pressure, but more sophisticated model can be used. The established model of power injection leads to simple analytical expression function of plate and boundary layer characteristics. A comparison of the model with exact calculation is presented.