Volume 3, 2012Progress in Flight Physics
|Page(s)||307 - 320|
|Section||Chapter Four. Heat Transfer|
|Published online||29 January 2013|
Laminar-turbulent flow around a wedge placed on sharp and blunted plates
Central Aerohydrodynamic Institute (TsAGI) Zhukovsky, Moscow Region 140180, Russia
The flow structure and heat transfer on sharp and blunted plates near a wedge have been studied experimentally at Mach number 6 and two Reynolds numbers corresponding to laminar and transitional boundary layers ahead of the wedge. Similarly to the two-dimensional (2D) flow, the plate's blunting causes a decrease of heat transfer at threedimensional (3D) interference between the boundary layer and the shock wave. However, there is a threshold bluntness value beyond which the influence is negligible. Heat transfer and pressure measurements as well as surface flow visualization have been performed by means of panoramic (global) methods based on the use of luminescent coatings. They have been used in a short duration (pulse) wind tunnel for the first time.
© Owned by the authors, published by EDP Sciences, 2012