Spatially and temporally resolved 2C-2D PIV in the inner layer of a high Reynolds number adverse pressure gradient turbulent boundary layer

Kurzfassung

Adverse pressure gradient (APG) turbulent boundary layer (APG-TBL) flow are pervasive throughout engineering and geophysical flows, yet the least is known of the physics of these wall-bounded flows. This paper reports on certain aspects of an international collaborative experiment that was undertaken under the auspices of EuHIT to quantify the statistical and detailed structure of an APG-TBL that develops on an inclined wall from a high Reynolds number upstream zero-pressure gradient (ZPG) turbulent boundary layer (ZPG-TBL) flow as depicted in Fig. 1. Specifically in this paper the spatially resolved wall shear stress distribution and the temporally resolved wall-normal distribution of the streamwise and wall-normal velocity at Position 1 shown in Fig. 1 will be reported and analysed in this paper.