Optimization of a dielectric barrier discharge actuator by stationary and non-stationary measurements of the induced flow velocity: application to airflow control

Forte, Maxime; Jolibois, J.; Pons, J.; Moreau, E.; Touchard, G.; Cazalens, Michel

doi:10.1007/s00348-007-0362-7

Cited by 428 publications

(320 citation statements)

References 19 publications

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“…Figure 15 shows the di¨usion of the transferred momentum from the plasma to the boundary layer. This is comparable to what can be observed in quiescent air [6]. The ionic wind is higher for a consumed power P/L = 80 W/m.…”

Section: Mean Velocity Pro¦lessupporting

confidence: 86%

“…As the DBD actuator induces a pulsed body force at the same frequency f p as the input signal [6], it may excite the corresponding T-S waves and trigger a promoted transition if f p is not well chosen [5]. For this reason, boundary layer mean velocity pro¦les have been computed from the experimental pressure distribution using an ONERA in-house boundary layer code (3C3D) and linear stability has then been applied.…”

Section: Baseline Flowmentioning

confidence: 99%

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Stabilizing a blasius boundary layer with dielectric barrier discharge plasma actuation: experimental characterization

Szulga¹,

Vermeersch²,

Forte³

et al. 2017

Progress in Flight Physics

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This paper presents an experimental characterization of Dielectric Barrier Discharge (DBD) plasma actuation on a two-dimensional (2D) boundary layer around a §at plate using both Laser Doppler Anemometry (LDA) and hot wire probings. The experiments are conducted in a subsonic wind tunnel at a free-stream velocity U ∞ = 35 m/s for a single DBD actuator and several electrical parameters. Hot wire probings are used to quantify the transition delay and mean velocity pro¦les far enough from the plasma region, while mean velocity pro¦le inside the plasma extent are measured using LDA after the method has been validated from a comparison with hot wire measurements. Measurements inside the plasma extent allow to quantify the ionic wind contribution to the actuated mean velocity pro¦les in a case where the transition is delayed by the actuator. A maximal ionic wind of 7 m/s is found to be added 2 mm downstream the actuator for a consumed electrical power of 80 W/m.

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Section: Mean Velocity Pro¦lessupporting

confidence: 86%

Section: Baseline Flowmentioning

confidence: 99%

Stabilizing a blasius boundary layer with dielectric barrier discharge plasma actuation: experimental characterization

Szulga¹,

Vermeersch²,

Forte³

et al. 2017

Progress in Flight Physics

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“…The majority of experimental [12][13][14]16 and numerical 10,18 investigations on the DBD forcing mechanisms discuss the sine waveform, albeit for different carrier frequencies and applied voltages. The temporal evolution of velocity and acceleration in the plasma region is presented in Fig.…”

Section: A Sine Waveformmentioning

confidence: 99%

“…Time-resolved laser Doppler anemometry (LDA) measurements were conducted in quiescent air 12 where the asymmetry between the two half cycles is evident. Large momentum transfer during the negative half cycle was recorded which corresponds with the recent modeling efforts.…”

Section: Introductionmentioning

confidence: 99%

“…The current status of experimental research into the forcing mechanisms of the plasma actuator is restricted to either spatial 13 or temporal 12,14 resolution of the flowfield. The experimental investigation in this paper is aimed at the simultaneous spatial and temporal resolution of the induced flowfield from the operation of the plasma actuator within one period of forcing.…”

Section: Introductionmentioning

confidence: 99%

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Forcing mechanisms of dielectric barrier discharge plasma actuators at carrier frequency of 625 Hz

Kotsonis

Ghaemi

2011

Journal of Applied Physics

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The forcing behavior of a dielectric barrier discharge (DBD) actuator is investigated experimentally using a time-resolved particle image velocimetry (PIV) system in conjunction with a phase shifting technique. The spatio-temporal evolution of the induced flowfield is accurately captured within one high voltage (HV) cycle allowing the calculation of the instantaneous velocity and acceleration. Additional voltage and current measurements provide the power consumption for each case. Four different applied voltage waveform shapes are independently tested, namely, sine, square, positive sawtooth, and negative sawtooth at fixed applied voltage (10 kV pp ) and carrier frequency (625 Hz). The instantaneous flowfields reveal the effect of the plasma forcing during the HV cycle. Sine waveform provides large positive forcing during the forward stroke, with minimal but still positive forcing during the backward stroke. Square waveform provides strong and concentrated positive and negative forcing at the beginning of the forward and backward stroke, respectively. Positive sawtooth provides positive but weak forcing during both strokes while the negative sawtooth case produces observable forcing only during the forward stroke. Results indicate the inherent importance of negative ions on the force production mechanisms of DBD's. Furthermore, the revealed influence of the waveform shape on the force production can provide guidelines for the design of custom asymmetric waveforms for the improvement of the actuator's performance.

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Cold Plasma Jet Coupled Nanosecond Laser Ablation Scheme For Plasmonic Nanostructured Surfaces

Khan

Aslam

Iqbal

et al. 2023

Adv Materials Inter

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This paper describes a study where an argon cold plasma jet, generated by a dielectric‐barrier discharge (DBD), is combined with nanosecond laser ablation (248 nm, 25 ns, 10 Hz) to deposit silver particle aerosols onto the substrate at atmospheric pressure. The deposition of the particle is examined using various microscopy techniques and absorption spectroscopy for the plasma jet produced by operating DBD in the normal and reversed mode. Plasma facilitated the deposition process by delivering the particle to the substrate and significantly influenced its morphology depending on the jet interaction, length, and substrate position. In both cases, the particles are clustered; however, there is less deposit for the plasma ignited in the reverse mode. The theoretical analysis of the deposition process is performed using ANSYS software and evaluated in terms of plasma‐induced flow velocity. This study infers that the hybrid plasma‐laser deposition scheme considered is attractive for material processing and deposition, especially overextended substrate distances, and for altering the properties of the deposited particles for practical utilization in surface‐enhanced Raman spectroscopy, solar cells, and catalysis.

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Optimization of a dielectric barrier discharge actuator by stationary and non-stationary measurements of the induced flow velocity: application to airflow control

Cited by 428 publications

References 19 publications

Stabilizing a blasius boundary layer with dielectric barrier discharge plasma actuation: experimental characterization

Stabilizing a blasius boundary layer with dielectric barrier discharge plasma actuation: experimental characterization

Forcing mechanisms of dielectric barrier discharge plasma actuators at carrier frequency of 625 Hz

Cold Plasma Jet Coupled Nanosecond Laser Ablation Scheme For Plasmonic Nanostructured Surfaces

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