Title: Transition control using a single plasma actuator

Authors: R. Joussot; R. Weber; A. Leroy; D. Hong

Addresses: Laboratoire PRISME, Université d'Orléans, 8, rue Léonard de Vinci, 45072, Orléans, Cedex 2, France; GREMI UMR 6606, CNRS – Université d'Orléans, 14 rue d'Issoudun, 45067, Orléans Cedex 2, France. ' Laboratoire PRISME, Université d'Orléans, 8, rue Léonard de Vinci, 45072, Orléans, Cedex 2, France. ' Laboratoire PRISME, Université d'Orléans, 8, rue Léonard de Vinci, 45072, Orléans, Cedex 2, France. ' GREMI UMR 6606, CNRS – Université d'Orléans, 14 rue d'Issoudun, 45067, Orléans Cedex 2, France

Abstract: The aim of this study is to modify, by using surface plasma actuators, the laminar-to-turbulent transition location of a Blasius boundary layer developing on a flat plate mounted in an opened wind tunnel. Measurements of flow velocities were performed by hot wire anemometry. Results show that an actuator placed upstream the natural transition zone enables the promotion or the delay of the transition onset, depending on the location, the voltage amplitude, and the frequency of the high voltage electrical parameters.

Keywords: surface plasma actuators; dielectric barrier discharge; DBD plasma actuators; transition control; laminar boundary layers; flow velocities; laminar-to-turbulent transition; turbulence; aerodynamics.

DOI: 10.1504/IJAD.2013.050912

International Journal of Aerodynamics, 2013 Vol.3 No.1/2/3, pp.26 - 46

Published online: 28 Feb 2014 *

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