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TsAGI Science Journal

ISSN Druckformat: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v46.i6.60
pages 591-607

THE STATIC PRESSURE INFLUENCE ON ELECTROPHYSICAL CHARACTERISTICS OF A DIELECTRIC BARRIER DISCHARGE

Marat Dzhaudatovich Gamirullin
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180 Russia
Vladimir Mikhailovich Litvinov
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky str. 1, Zhukovsky, Moscow Region, 140180 Russia
Tatiana Anatolyevna Pimenova
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky str. 1, Zhukovsky, Moscow Region, 140180 Russia
Igor Evgenievich Rebrov
Institute of Electrophysics and Electroenergetics of the Russian Academy of Sciences, 18 Dvortsovaya Emb., St. Petersburg, 191186 Russia
Aleksandr Aleksandrovich Uspenskii
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky str. 1, Zhukovsky, Moscow Region, 140180 Russia
Andrey Yuryevich Urusov
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation

ABSTRAKT

The results of experimental investigation of electro-physical characteristics of plasma actuators (the DBD actuators), intended for the boundary layer flow control by an excitation of a dielectric barrier discharge, are presented. The experiments were carried out at the static pressure change in a wide range from the atmospheric pressure to the low pressure, corresponding to the real flight conditions at heights 10-12 km. As the models of the actuators, the flat dielectric plates with the discharge electrodes located on the surface were used. The discharge excitation was implemented by a high-voltage impulse generator that formed the impulses of amplitude of 2-5 kV, of duration of 20–35 μs and with frequency of 2.5-6.25 kHz. The consumption of electric power for the discharge maintenance as a function of pressure, of an incoming flow velocity, and of an operational regime of actuators (frequency and voltage amplitude) was determined. On the basis of integral momentum-transfer method with the use of the velocity profiles induced by the actuators, the evaluations of the volumetric force generated by the discharge were performed. The evaluations of energy efficiency of an actuator as a function of pressure and the discharge parameters were done.


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