Effect of Sensor Mounting and Flow History on Measured Wall Pressure Spectra

An experimental study of wall pressure fluctuations beneath a turbulent boundary layer was carried out on a plate model with a streamwise varying pressure gradient along the plate length. The wall pressure fluctuations were measured with flush-mounted Kulite sensors, and mean velocity measurements across the boundary layer were performed by using a single-wire hot-wire anemometer. A variety of streamwise pressure distributions were imposed by...