 |
Discharge morphology and spectral diagnostic of a serrated DBD plasma actuator dedicated to aerodynamic flow control applications
1 : Laboratoire PRISME
(PRISME)
Université d'Orléans : EA4229, ENSI Bourges
8, rue Léonard de Vinci 45072 Orléans Cédex 2 -
France
2 : Institut de Combustion Aérothermique Réactivité et Environnement
(ICARE)
-
Website
CNRS : UPR3021
1C Av. de la Recherche Scientifique 45071 ORLEANS cedex 2 -
France
3 : Groupe de recherches sur l'énergétique des milieux ionisés
(GREMI)
-
Website
* : Corresponding author
CNRS : UMR7344, Université d'Orléans
14 Rue d'Issoudun - BP 6744 45067 ORLEANS CEDEX 2 -
France
The serrated DBD plasma actuator configuration, with the exposed electrode having a sawtooth edge, was compared to the standard one (i.e. with strip electrodes) in order to highlight plasma channels induced by the serration. The differences in the plasma morphology and properties between these configurations were investigated by using optical diagnostics, in quiescent air. Images of the discharge were recorded by an ICCD camera, with and without narrow-band filters and an optical emission spectrometer was used to measure the spectral bands of N2 and N2+, allowing the rotational temperatures to be estimated.
