Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
TsAGI Science Journal

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

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v41.i1.90
pages 97-107

CORONA DISCHARGE MICROJETS AS POSSIBLE ACTUATORS FOR JET NOISE CONTROL

Victor F. Kopiev
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180,Moscow region, Russia
N. N. Ostrikov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180,Moscow region, Russia

ABSTRAKT

The objective of this study is to find instruments for active turbulent jet noise control that are based on the resonant breakdown of large-scale power-intensive vortices. For resonant excitation of largescale vortex rings in turbulent jets, it is for the first time suggested to use the microjets generated by pulsating corona discharge. A system of actuators with six anode needles is proposed for resonant excitation of Bessel oscillation modes of the ring vortex core. The presence of the effect of the destruction of the vortex rings is demonstrated in the jet velocity range 12−30 m/s. It is shown that this effect is sensitive to the configuration of the whole system of actuators, including the mutual position of each pair of anode and cathode needles as well as the positioning of anode needle relative to the flow direction. The main conclusion consists of the fact that the effect of the destruction of vortex rings is of a resonant nature, since it is achieved only by the action of pulsating microjets, and not by the action of steady microjets generated by dc corona discharge.


Articles with similar content:

MOTION OF ANODE ATTACHMENT AND FLUCTUATIONS OF PLASMA JET IN DC ARC PLASMA TORCH
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.1, 1997, issue 2
Milan Hrabovsky, M. Konrad, E. Vesely , J. Hlina, J. Benes, Vladimir Kopecky
ANALYSIS OF PLASMA JETS GENERATED IN GAS AND GAS-WATER TORCHES
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.11, 2007, issue 1
T. Kavka, A. Maslani, O. Chumak, V. Sember, Vladimir Kopecky
Comparative Study of Three Nonthermal Plasma Sources against Causative Agents of Nosocomial Infections
Plasma Medicine, Vol.2, 2012, issue 1-3
Mikhail M. Vasiliev, Gregor Ego Morfill, Boris S. Naroditsky, Vladimir Evgenievich Fortov, Svetlana A. Ermolaeva, Elena V. Sysolyatina, Alexander L. Gintsburg, Viktor N. Vasilets, Yurii S. Akishev, Anatoly I. Grigoriev, Oleg F. Petrov
Turbulent Swirled Flow Structure in Twisted Tube Bundles
ICHMT DIGITAL LIBRARY ONLINE, Vol.10, 2006, issue
E. N. Nikiporets, Boris V. Dzyubenko, V. V. Chervakov, A. S. Myakochin
EXPERIENCE IN THE SYNTHESIS OF DIAMOND FROM A SUPERSONIC MICROWAVE PLASMA JET
Interfacial Phenomena and Heat Transfer, Vol.7, 2019, issue 2
Ivan B. Yudin, A. K. Rebrov, M. S. Bobrov, Nikolay I. Timoshenko, A. A. Emelyanov, Michael Yu. Hrebtov