INVESTIGADORES
ARTANA Guillermo Osvaldo
congresos y reuniones científicas
Título:
Electrical properties of a sliding discharge in supersonic air flow
Autor/es:
LUC LEGER; GUILLERMO ARTANA; OLIVIER GALLOT LAVALEE; ERIC MOREAU
Lugar:
Buenos Aires
Reunión:
Simposio; International Symposium on Electrohydrodynamics 2006; 2006
Institución organizadora:
IEEE/DEISS
Resumen:
Recent studies have shown atmospheric plasma discharge to be an effective means of air flow control. In supersonic airflow it seems that the effects of the plasma are mainly of thermal origin. Nevertheless some experiments have shown some anomalous flows around the body and anomalous shock waves structures in cold plasma. In order to explain these experiments some teams work on the hypothesis of the existence of non thermal effect in non equilibrium weaklyionized gases. The nature of the observed effects was not clear and from the very beginning there were a lot of controversial speculations around the problem.In this paper we focus our efforts in obtaining very stable plasma discharge in supersonic air flows with help of a third electrode and a combination of DC and AC high voltage potential. Experimental results will be presented. We will show the influence of different parameters like the frequency, DC potential, AC potential on the discharge current.