Fully Separated Flow Control Using DBD Plasma Actuators Located at the Leading Edge of an Airfoil

Annie Leroy; Pierre Audier; Dunpin Hong; J. Podliński; Artur Berendt; Jerzy Mizeraczyk

Fully Separated Flow Control Using DBD Plasma Actuators Located at the Leading Edge of an Airfoil

Abstract

In the framework of the PLASMAERO European project, experiments were conducted to investigate the authority of surface DBD plasma actuators to alter a fully separated flow around an airfoil in order to improve its aerodynamic performances in its natural stall regime. In this paper, unsteady excitation control is more specifically investigated. The key control parameter studied here is the burst frequency which periodically imposes switching on and off the actuator. Results show that it is possible to perform a modification of the massively separated flow by unsteady excitation near the leading-edge. However, depending on the forcing frequency and the post-stall regime, two different flow modification mechanisms can be observed leading to either the reduction of the flow separation or the occurrence of a mean large lifting vortex next to the suction side. In both cases, a large lift increase is obtained.

Authors (6)

Annie Leroy
- University of Orleans Laboratory PRISME,
Pierre Audier
- CNRA & University of Orleans GREMI
Dunpin Hong
- CNRS & University of Orleans GREMI
J. Podliński
- Instytut Maszyn Przepływowych im. Roberta Szewalskiego PAN Ośrodek Techniki Plazmowej i Laserowej
Artur Berendt
Jerzy Mizeraczyk
- Instytut Maszyn Przepływowych im. Roberta Szewalskiego PAN Ośrodek Techniki Plazmowej i Laserowej

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Category:: Articles
Type:: artykuły w czasopismach
Published in:: ERCOFTAC Bulletin pages 47 - 52,
ISSN: 2518-0991
Language:: English
Publication year:: 2013
Bibliographic description:: Leroy A., Audier P., Hong D., Podliński J., Berendt A., Mizeraczyk J.: Fully Separated Flow Control Using DBD Plasma Actuators Located at the Leading Edge of an Airfoil// ERCOFTAC Bulletin -,iss. 94 (2013), s.47-52
Verified by:: Gdańsk University of Technology