WIND TUNNEL MEASUREMENT ON THE SURFACE WIND PRESSURE SPECTRUM OF THE SQUARE PRISM IN A TURBULENT BOUNDARY LAYER FLOW

摘要

In this study, wind tunnel experiments were carried out to measure the surface pressure and pressure spectrum of a square prism in the turbulent boundary layer. A thick turbulent boundary layer was generated as the approaching flow. The wind pressure on different faces of the square prism was measured simultaneously for many taps at different height and locations on the surface of the prismatic model by employing the pressure electronic scanning system of Scanivalve HYSACN 2000. Results of the measured probability density function for the surface wind pressure fluctuation, and the wind pressure spectrum of the square prism are reported.