A flat plate experiment for investigations of vortex generator jets at high reynolds number

Abstract

A flat plate boundary layer experiment is designed to examine the physical mechanism and the performance of vortex generator jets at Reynolds numbers up to Reθ = 20000. The investigation of vortex generator jets at this flow state is of fundamental importance for the assessment of flow control at takeoff and landing conditions. First results show that the optimal skew angle is about β = 15°. for the slot actuator. The formation of the longitudinal vortex structures can be described in detail by the derived vortex topology based on the measurement results. © 2007 Springer-Verlag Berlin Heidelberg.