Experimental study of laminar-to-turbulent transition in an adverse pressure gradient flow

Abstract Experimental results on laminar-to-turbulent transition in a separated laminar boundary layer formed over flat plate an adverse pressure gradient are provided. Experiments have been performed for range of Reynolds numbers (1.4 − 2.4 · 10 5 ) and two freestream turbulence levels ( Tu =3.6 5.3%). The measurements mean fluctuating velocity profiles carried out at inlet to the test section using Constant Temperature Anemometry (CTA). data might be useful validation development models. In order characterize dynamics leading process surface, Particle Image Velocimetry (PIV) performed. show that is influenced by breakdown Klebanoff streaks.