Spatial organization of coherent structures in a turbulent boundary layer

Abstract

Direct numerical simulation database of a zero pressure-gradient turbulent boundary layer was scrutinized to investigate the spatial distribution of vortices around a streamwise-elongated low-speed structure. The turbulent flow field was numerically produced by preceding the bypass transition simulation using the isotropic free-stream turbulence, in which the Reynolds number reaches up to $Re_θ=3280$ ($δ^{+}