Estimates of the Wavenumber-Frequency Spectra for the Nonhomogeneous StreamwiseTransition Flow Pressure Field

摘要

This research implements computer models to provide unprecedented estimates ofthe two spectral formats for the stationary, nonhomogeneous, streamwise transitional flow pressure field. Estimates of the space-varying wavenumber-frequency spectrum that reveal components having convective as well as subconvective velocities are presented. These subconvective components are believed to be associated with the leading and trailing edge speed of the turbulent spot generation process. In addition, estimates of the full spectral two wavenumber-frequency spectrum that are concise and informationally equivalent to the space-varying wavenumber-frequency spectrum are provided.