Low-wavenumber turbulent boundary layer wall-pressure measurements from vibration data on a cylinder in pipe flow

The response of a structure to turbulent boundary layer (TBL) excitation has been an area of research for roughly 50 years, although uncertainties persist surrounding the low-wavenumber levels of the TBL surface pressure spectrum. In this experimental investigation, a cylindrical shell with a smooth internal surface is subjected to TBL excitation from water in fully developed pipe flow. The cylinder's vibration response to this excitation is used to determine low-wavenumber TBL surface pressure levels at lower streamwise wavenumbers than previously reported ( k 1/ k c