Turbulent Shear Flow Over Surface Mounted Obstacles

TLDR: In this paper, the mean flow field surrounding obstacles attached to a wall under a turbulent boundary layer is analyzed and the analysis concentrates on how major features of the flow are influenced by model geometry and the incident shear flow.

Abstract: The mean flow field surrounding obstacles attached to a wall under a turbulent boundary layer is analysed. The analysis concentrates on how major features of the flow are influenced by model geometry and the incident shear flow. Experimental data are analysed in terms of non-dimensionalised variables chosen on the basis that their effect on major flow features can be simply appreciated. The data are restricted to high Reynolds number shear layers thicker than the attached obstacle. The work shows that data from a wide range of flows can be collapsed if appropriate non-dimensional scales are used.