Asymmetric surface dielectric barrier discharge in air at atmospheric pressure: electrical properties and induced airflow characteristics

Pons, J.; Moreau, Éric; Touchard, G.

doi:10.1088/0022-3727/38/19/012

Cited by 283 publications

(205 citation statements)

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“…Roth used it for the first time for airflow applications in Roth and Sherman (1998). Then, a few research groups in the world started to study DBD plasma actuators and their ability to manipulate airflow (Corke and He 2004;Enloe et al 2004a, b;Pons et al 2004Pons et al , 2005. In this part, the electrical and mechanical characteristics of a typical single plate-to-plate surface dielectric barrier discharge actuator energized by a periodic sine waveform high voltage are summarized.…”

Section: Typical Single Dbdmentioning

confidence: 99%

Electrical and mechanical characteristics of surface AC dielectric barrier discharge plasma actuators applied to airflow control

2014

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Sherman 1998). Then, different groups already having background experiences on corona discharges and their interactions with quiescent or moving flows formed a new highly motivated community that contributes to the dissemination of the advantages and relevancy of non-thermal plasma discharges as an alternative to conventional flow actuators (Moreau 2007;Corke et al. 2009Corke et al. , 2010. Rapidly, the number of publications in journals and conference exponentially grows to finally become a full interdisciplinary research field. The sudden interest for surface dielectric barrier discharge (DBD) energized by AC high voltage for manipulating airflows was initially motivated by the easy implementation of these actuators and a possible retrofitting on existing airfoils. They have the capability to be mounted at the surface of linear or curved objects with a minimal protrusion in the flow. Beside, their location can be changed faster than other active actuators that require a new model for each new position of actuation. The amplitude and frequency of the electrohydrodynamic (EHD) force produced by the surface plasma are directly connected to the driven electrical signal, this being a clear advantage for parametric studies on the sensibility of one flow to well-defined perturbations. Indeed, the EHD force (also referred as EFD force for electro-fluid dynamic) and the resulting produced flow called electric wind or ionic wind are due to electric field that acts on charged species. These charged species are produced by physical phenomena such as ionization, recombination, attachment, detachment and photoionization, which occur at timescale of a few picoseconds (Boeuf et al. 2009a). Subsequently, the produced body force, despite being low-pass filtered by fluid mechanical laws (viscosity, energy exchanges, dissipation) to produce electric wind, has a high bandwidth. Plasma actuators, and more specifically dielectric barrier discharge actuators, have demonstrated their authority to Abstract The present paper is a wide review on AC surface dielectric barrier discharge (DBD) actuators applied to airflow control. Both electrical and mechanical characteristics of surface DBD are presented and discussed. The first half of the present paper gives the last results concerning typical single plate-to-plate surface DBDs supplied by a sine high voltage. The discharge current, the plasma extension and its morphology are firstly analyzed. Then, time-averaged and time-resolved measurements of the produced electrohydrodynamic force and of the resulting electric wind are commented. The second half of the paper concerns a partial list of approaches having demonstrated a significant modification in the discharge behavior and an increasing of its mechanical performances. Typically, single DBDs can produce mean force and electric wind velocity up to 1 mN/W and 7 m/s, respectively. With multi-DBD designs, velocity up to 11 m/s has been measured and force up to 350 mN/m.

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Section: Typical Single Dbdmentioning

confidence: 99%

Electrical and mechanical characteristics of surface AC dielectric barrier discharge plasma actuators applied to airflow control

2014

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“…(13) implies that the length scale may be approximated as . With this correction, the force density is given by (14) Integrating over the volume of the ion distribution, the total force is approximated as (15) This is considerably larger than the dc limit of Eq. (7) by a factor of .…”

Section: B Charge Transportmentioning

confidence: 99%

“…There are two common designs for electric wind actuators: 1) "point-plane" actuators 12 , and 2) dielectric barrier discharge (DBD) actuators [13][14][15][16][17][18][19][20][21] . In the former, a static voltage (typically several to tens of kV) is applied between an electrode of high curvature -the "point", usually a needle or wire -and a low curvature counter electrode -the "plane", often a plate or ringpositioned some distance away ( Fig.…”

Section: Introductionmentioning

confidence: 99%

“…By contrast, DBD actuators are characterized by the presence of a dielectric slab (e.g., PMMA 13 , glass 14 or glass-filled epoxy 15 ) positioned between two high curvature electrodes ( Fig. 1(a)).…”

Section: Introductionmentioning

confidence: 99%

“…Somewhat counter-intuitively, the transient migration of charged species within ac fields also gives rise to steady electric winds. 14,15,18,19 Simulation studies 20,21 have shown how the processes of ionization, ion/electron transport, and recombination result in a time-averaged, electrohydrodynamic force that drives the gas flows observed in experiments.…”

Section: Introductionmentioning

confidence: 99%

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Electric winds driven by time oscillating corona discharges

Drews

Cademartiri

Whitesides

et al. 2013

Journal of Applied Physics

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We investigate the formation of steady gas flows -so-called electric winds -created by point-plane corona discharges driven by time oscillating (ac) electric fields. By varying the magnitude and frequency of the applied field, we identify two distinct scaling regimes: (i) a low frequency (dc) regime and (ii) a high frequency (ac) regime. These experimental observations are reproduced and explained by a theoretical model describing the transport and recombination of ions surrounding the discharge and their contribution to the measured wind velocity. The two regimes differ in the spatial distribution of ions and in the process by which ions are consumed. Interestingly, we find that ac corona discharges generate strong electric forces localized near the tip of the point electrode, while dc corona discharges generate weaker forces distributed throughout the interelectrode region. Consequently, the velocity of the electric winds (>1 m/s) generated by ac discharges is largely independent of the position of the counter electrode.a Author to whom correspondence should be addressed. Electronic mail: kjmbishop@engr.psu.edu 2 The unified theoretical description of dc and ac electric winds presented here reconciles previous observations of winds driven by dc corona and ac dielectric barrier discharges; insights from the model should also prove useful in the design of other plasma actuators.

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