Reynolds number effect on the transition on a flat plate

Abstract

Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.There are presented some fundamental boundary layer characteristics of the flat plate boundary layer transitional region when changing the flow velocity and the external turbulence level. Experiments were performed in the new experimental set up of the close circuit wind tunnel IT AS CR. The investigated boundary layers are developing on the flat plate in the channel with constant cross section 0.9 m x 0.5 m. The external flow Reynolds number control was executed by velocity variation from about 5 m/s up to 14 m/s. Dimensionless mean flow characteristics and location of the flat plate boundary layer transitional region were investigated.