Results 261 to 270 of about 26,841 (302)

Single dielectric barrier aerodynamic plasma actuation

2023
A single dielectric barrier aerodynamic plasma actuator apparatus based on the dielectric barrier discharge phenomenon is disclosed and suggested for application to aerodynamic uses for drag reduction, stall elimination and airfoil efficiency improvement.
Enloe, Carl L., Jumper, Eric J., Corke, Thomas C., McLaughlin, Thomas E.   +3 more
openaire   +1 more source

Wingtip Vortex Attenuation by Plasma Actuator

18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference, 2012
of attack to the approach flow were changed. SD’s frequency was changed within the range of 0)715 Hz (which was limited by the experimental setup parameters). The alternating sinusoidal voltage frequency of 50 kHz and amplitude of 3,5 kV was applied to DBD’s electrodes.
Victor Golub, Svetlana Agibalova, Ivan Moralev, Andrey Saveliev   +3 more
openaire   +1 more source

Multiprocessor Modeling of DBD Plasma Actuator

38th Fluid Dynamics Conference and Exhibit, 2008
Based on the early developed single-processor numerical model for the dielectric barrier discharge simulation we have developed a multi-processor model. The time required for the DBD simulation is shown to be significantly less for the multiprocessor model than for the single-processor one. Based on the understanding of the physics of the DBD, operated
Alexandre Likhanskii, Vladimir Semak, Mikhail Shneider, Dmitry Opaits, Richard Miles, Sergey Macheret   +5 more
openaire   +1 more source

Supersonic Cavity Control Using Plasma Actuators

53rd AIAA Aerospace Sciences Meeting, 2015
Cavity flows are present in a wide range of aerodynamic applications. A cavity could potentially be used in a scramjet isolator as a shock trap to increase the back-pressure margin of the inlet/isolator. In order to avoid a significant drag penalty while maintaining shock-trapping ability, fastresponse resonance suppression is required.
Nathan J. Webb, Mo Samimy
openaire   +1 more source

Effective Discharge Dynamics for Plasma Actuators

44th AIAA Aerospace Sciences Meeting and Exhibit, 2006
Some effective control parameters for active separation mitigation using asymmetric dielectric barrier discharges is studied by considering the weakly ionized gas flow past a flat plate at angle of attack. A self- consistent plasma actuator model is employed to couple the electric force field to the momentum of the neutral gas.
Subrata Roy, K.P. Singh, Haribalan Kumar, Datta Gaitonde, Miguel Visbal   +4 more
openaire   +1 more source

Tip Clearance Control Using Plasma Actuators

43rd AIAA Aerospace Sciences Meeting and Exhibit, 2005
Abstract : This report documents experimental results from a series of experiments using active flow control to improve the performance and efficiency of turbine tip clearance flows. The flow control was based on plasma actuators. Two experimental facilities were used as part of this research project.
Scott Morris, Thomas Corke, Daniel VanNess, Julia Stephens, Travis Douville   +4 more
openaire   +1 more source

Combustion stabilization using serpentine plasma actuators

Applied Physics Letters, 2011
This letter presents a numerical model for combustion stabilization with plasma actuators. Recently, we demonstrated that serpentine actuators induce complex neighboring flow structures due to pinching and spreading effects suitable for rapid flow mixing.
Chin-Cheng Wang, Subrata Roy
openaire   +1 more source

Diagnostics for characterisation of plasma actuators

Measurement Science and Technology, 2015
The popularity of plasma actuators as flow control devices has sparked a flurry of diagnostic efforts towards their characterisation. This review article presents an overview of experimental investigations employing diagnostic techniques specifically aimed at AC dielectric barrier discharge, DC corona and nanosecond pulse plasma actuators.
openaire   +3 more sources

Flow Structure Control Using Plasma Actuators

AIAA Journal
In the last few years, achieving precise control over flow structures has become increasingly crucial in aeronautics, space engineering, and wind turbine optimization. This study simulated the effects of dielectric barrier discharge on undisturbed air for flow structure control by means of plasma actuators.
Dmytro Redchyts, Alejandro Ballesteros-Coll, Unai Fernandez-Gamiz, Uliana Tuchyna, Oleg Polevoy, Svitlana Moiseienko, Volodymyr Zaika   +6 more
openaire   +1 more source

Plasma Actuator for Hypersonic Flow Control

43rd AIAA Aerospace Sciences Meeting and Exhibit, 2005
A summary of recent research progress in hypersonic plasma actuators for flow control is attempted. The most effective plasma actuator is derived from an electromagnetic perturbation to the growth rate of a shear layer and amplified by the strong viscous-inviscid interaction. Computational efforts that use a driftdiffusion and a simple phenomenological
Joseph Shang, Roger Kimmel, James Menart, John Hayes   +3 more
openaire   +1 more source