Viscous wall region structure in high and low reynolds number turbulent boundary layers

Abstract

The present study explores Reynolds number dependence in the viscous wall region of turbulent boundary layers. Low Reynolds number experiments (Rθ=2,000) were conducted in the boundary layer wind tunnel at the University of Utah. High Reynolds number experiments (Rθ≈4,000,000) were conducted in the atmospheric surface layer which flows over the salt flats of the Great Salt Lake Desert in western Utah. Velocity measurements are derived from a five element vertical rake of wires spanning the region 2View full abstract