Influence of interaction between charged particles and dielectric surface over a homogeneous barrier discharge in nitrogen

Golubovskiǐ, Yu. B.; Maiorov, V A; Behnke, J. F.

doi:10.1088/0022-3727/35/8/306

Cited by 288 publications

(198 citation statements)

References 18 publications

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“…2): z 2 = 6, z 3 = 8, y 1 = −3, y 2 = −1, y e = 5, and y ∞ = 7 mm. The following physical parameters were used in calculations: the pressure and the temperature of air p = 2.6 · 10 4 Pa and T = 223 K, the amplitude and the frequency of the applied harmonic voltage ϕ 0 = 5 kV and f = 10 kHz, the dielectric con- stants of the insulation layers ε 1 = 2.1 (Te §on) and ε 2 = 3.5 (Kapton), the coe©cients of the secondary ion electron emission on dielectric and electrode surfaces equal 0.05, the frequency of electron desorption from dielectric surface equals 5 kHz [19], and the electron ion recombination coe©cient on dielectric surface equals 10 −7 cm 2 /s [19].…”

Section: 5mentioning

confidence: 99%

On the possibility of laminar flow control on a swept wing by means of plasma actuators

Chernyshev

Kuryachii

Manuĭlovich

et al. 2015

Progress in Flight Physics – Volume 7

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Theoretical assessment of the possibility of laminar §ow control (LFC) on a swept wing owing to volumetric force and heat impact of plasma actuators is presented. The proposed approach includes numerical modeling of dielectric barrier discharge (DBD) actuators, calculation of inviscid §ow over an in¦nite span swept wing, calculation of compressible boundary layer spatially modulated in spanwise direction, and numerical solution of linear stability problem for stationary modes of cross- §ow-type disturbances. Calculations have been performed for one set of geometrical and physical parameters describing plasma actuators to estimate qualitative features of volumetric force and heat input distributions. Inviscid §ow and boundary layer calculations were executed at free stream parameters corresponding to typical cruise §ight conditions. Estimation of volumetric force impact necessary for noticeable in §uence on cross- §ow-type instability is obtained.

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Section: 5mentioning

confidence: 99%

On the possibility of laminar flow control on a swept wing by means of plasma actuators

Chernyshev

Kuryachii

Manuĭlovich

et al. 2015

Progress in Flight Physics – Volume 7

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“…There have been several numerical studies to investigate the influence of applied voltage parameters, gap width, electrode parameters, materials, and width of the dielectric layer, on discharge performance and energy efficiency of the DBDs. [13][14][15][16] However, most of these studies have been performed on DBDs between parallel-plate electrodes, whereas diagnostics on DBDs with co-axial electrode configuration are comparatively less. [17][18][19] Most of the applications of nonthermal plasma used for decomposing gaseous pollutants are performed in co-axial DBD reactors.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of co-axial DBD: Influence of relative permittivity of the dielectric barrier, applied voltage amplitude, and frequency

Gadkari

2017

Physics of Plasmas

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In this work, a one-dimensional numerical fluid model is developed for co-axial dielectric barrier discharge in pure helium and a parametric study is performed to systematically study the influence of relative permittivity of the dielectric barrier and the applied voltage amplitude and frequency on the discharge performance. Discharge current, gap voltage, and spatially averaged electron density profiles are presented as a function of relative permittivity and voltage parameters. For the geometry under consideration, both the applied voltage parameters are shown to increase the maximum amplitude of the discharge current peak up to a certain threshold value, above which it stabilized or decreased slowly. The spatially averaged electron density profiles follow a similar trend to the discharge current. Relative permittivity of the dielectric barrier is predicted to have a positive influence on the discharge current. At lower frequency, it is also shown to lead to a transition from Townsend to glow discharge mode. Spatially and time averaged power density is also calculated and is shown to increase with increasing relative permittivity, applied voltage amplitude, and frequency.

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“…suggested that many seed electrons necessary for a uniform/homogeneous discharge could be produced by 37 electrons trapped on the dielectric surface [3]. Recently, long lifetime of charge trapping on alumina used as 38 dielectric in DBD plasma has been evidenced by Thermally stimulated current [1] and Thermoluminescence 39 technique [4].…”

mentioning

confidence: 99%

Thermoluminescence study of the trapped charge at an alumina surface electrode in different dielectric barrier discharge regimes

Ambrico¹,

Ambrico²,

Colaianni³

et al. 2010

J. Phys. D: Appl. Phys.

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In this study, the charge trapping effect in alumina dielectric surfaces has been deeply investigated by means of a dedicated dielectric barrier discharge apparatus in different discharge regimes and gas mixtures. This work further validates our previous findings in the case of air discharges in a filamentary regime. Long lasting charge trapping has been evidenced by ex situ thermoluminescence characterizations of alumina dielectric barrier plates exposed to a plasma. The density of trapped surface charges was found to be higher in the glow discharge with respect to pseudo-glow and filamentary regimes, and for all regimes the minimum trap activation temperature was 390 K and the trap energy was less than or around 1 eV. This implies that in the case of glow discharges a higher reservoir of electrons is present. Also, the effect was found to persist for several days after running the discharge.

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Influence of interaction between charged particles and dielectric surface over a homogeneous barrier discharge in nitrogen

Cited by 288 publications

References 18 publications

On the possibility of laminar flow control on a swept wing by means of plasma actuators

On the possibility of laminar flow control on a swept wing by means of plasma actuators

Numerical investigation of co-axial DBD: Influence of relative permittivity of the dielectric barrier, applied voltage amplitude, and frequency

Thermoluminescence study of the trapped charge at an alumina surface electrode in different dielectric barrier discharge regimes

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