Experimental Results in DBD Plasma Actuators for Airflow Control

Borghi, C.A.; Cristofolini, Andrea; Latini, Chiara; Neretti, Gabriele; Gurioli, A; Pertile, R

doi:10.2514/6.2010-4763

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…It was found that the rotational temperature obtained by spectroscopic measurements hardly changed, which is the same as the gas temperature measured by thermography. [9] Dong et al evaluated the plasma temperature through spectroscopy emission at a working voltage of 8 kV and discharge frequency of 2 kHz, and the temperature rose by 40 K. [10] Joussot et al investigated the thermal characteristics of DC glow discharge in a Mach 2 air flow. Experimental results showed that the surface temperature increased with the increase of current.…”

Section: Introductionmentioning

confidence: 99%

Electrical and thermal characterization of near-surface electrical discharge plasma actuation driven by radio frequency voltage at low pressure

Zhou¹,

Song²,

Jin³

et al. 2018

Chinese Phys. B

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The electrical and thermal characterization of near-surface electrical discharge plasma driven by radio frequency voltage are investigated experimentally in this paper. The influences of operating pressure, electrode distance, and duty cycle on the discharge are studied. When pressure reaches 60 Torr (1 Torr = 1.33322 × 10 2 Pa) the transition from diffuse glow mode to constricted mode occurs. With the operating pressure varying from 10 Torr to 60 Torr, the discharge energy calculated from the charge-voltage (Q-V ) Lissajous figure decreases rapidly, while it remains unchanged between 60 Torr and 460 Torr. Under certain experimental conditions, there exists an optimized electrode distance (8 mm). As the duty cycle of applied voltage increases, the voltage-current waveforms and Q-V Lissajous figures show no distinct changes.

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Section: Introductionmentioning

confidence: 99%

Electrical and thermal characterization of near-surface electrical discharge plasma actuation driven by radio frequency voltage at low pressure

Zhou¹,

Song²,

Jin³

et al. 2018

Chinese Phys. B

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Charge distribution on the surface of a dielectric barrier discharge actuator for the fluid-dynamic control

Cristofolini

Borghi

Neretti

2013

Journal of Applied Physics

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The electric potential distribution induced on the surface of an aerodynamic plasma actuator, operating by means of a surface dielectric barrier discharge (DBD), has been studied both numerically and experimentally. Three actuators made with three different dielectric materials (Teflon, Plexiglas, and glass) have been used. The geometric configuration of the three actuators is the same one. An electrode pair separated by a 2 mm thick dielectric sheet constitutes the DBD actuator. The exposed high voltage electrode has been fed by a 5 kHz a.c. electrical signal. Voltage values between 7.5 and 15 kVp have been used. Measurements of the distribution of the electrical potential in the dielectric surface, generated by the charge deposited on it, have been done. Numerical simulations allowed to evaluating the charge distribution on the dielectric surface. The discharge has been switched off after positive and negative plasma currents. The measurements have been carried out after both phases. The potential distribution is always positive. The charge build up takes place several centimeters downstream of the upper electrode for an extension broader than that of the plasma on the dielectric surface. The charge distribution strongly depends on the switching off phase and is heavily affected by the dielectric material. In order to evaluate the discharge structure and the extension of the plasma, images have been taken also.

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Temperature characterization of dielectric barrier discharge actuators: influence of electrical and geometric parameters

Tirumala¹,

Bénard²,

Moreau³

et al. 2014

J. Phys. D: Appl. Phys.

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Experimental Results in DBD Plasma Actuators for Airflow Control

Cited by 4 publications

References 4 publications

Electrical and thermal characterization of near-surface electrical discharge plasma actuation driven by radio frequency voltage at low pressure

Electrical and thermal characterization of near-surface electrical discharge plasma actuation driven by radio frequency voltage at low pressure

Charge distribution on the surface of a dielectric barrier discharge actuator for the fluid-dynamic control

Temperature characterization of dielectric barrier discharge actuators: influence of electrical and geometric parameters

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