Simulation study of one-dimensional self-organized pattern in an atmospheric-pressure dielectric barrier discharge

Abstract

A two-dimensional fluid model is developed to simulate the one-dimensional self-organized patterns in an atmospheric-pressure dielectric barrier discharge (DBD) driven by sinusoidal voltage in argon. Under certain conditions, by changing applied voltage amplitude, the transversely uniform discharge can evolve into the patterned discharge and the varied self-organized patterned discharges with different numbers and arrangements of discharge channels can be observed. Similar to the uniform atmospheric-pressure DBD, the patterned discharge mode is found to undergo a transition from Townsend regime, sub-glow regime to glow regime with increasing applied voltage amplitude. In the different regimes, charged particles and electric field display different dynamical behaviors. If the voltage amplitude is increased over a certain value, the discharge enters an asymmetric patterned discharge mode, and then transforms into the spatially chaotic state with out-oforder discharge channels. The reason for forming the one-dimensional self-organized pattern is mainly due to the so-called activation-inhibition effect resulting from the local high electron density region appearing in discharge space. Electrode arrangement is the reason that induces local high electron density. V C 2015 AIP Publishing LLC. [http://dx.

Nonlinear phenomena in dielectric barrier discharges: pattern, striation and chaos

“…These discussions are basically in good agreement with the results and considerations of Ouyang's group [51,52,59]. Wang et al [62] also agreed that the reason for the formation of glow DBD pattern is due to the activationinhibition mechanism resulting from high-density space charge.…”

“…The first fluid simulation on DBD patterns came from Boeuf and co-workers [42,56]. After that, several spatial patterns or complex structures such as hexagons have been reproduced successfully by using similar two-dimensional [35,[57][58][59][60][61][62] or three-dimensional fluid models [63,64]. The common proposal for the cause of pattern formation relies on the surface charges.…”

Characteristics and mechanisms of transition from filament to homogeneous glow in atmospheric helium dielectric barrier discharges under variation of the applied voltage amplitude

“…By experimentally increasing the amplitude (V am ) of the applied voltage, Guikema et al [14] observed that the discharge structure would transform from the filamentary mode to the relatively diffuse mode in a He-Ar DBD. The similar trans ition process was also reported by Zhang et al [15] in a pure Ar DBD and by Hao et al [16] in a pure He DBD. Additionally, through plasma fluid simulations, Zhang et al [17] found a similar transition of the discharge uniformity in a He (with N 2 as impurities) DBD when changing the driving frequency (f ).…”

“…Therefore, two questions naturally arise: why do the solitary filaments form and how can we achieve a HDBD? Many previous reports have focused on these two aspects [10][11][12][13][14][15][16][17][18][19].…”

Particle-in-cell/Monte Carlo simulation of filamentary barrier discharges

“…As a significant tool, the numerical simulation has attracted increasing attention in recent years. Substantial efforts have been made for fluid-based simulations, which successfully explain the elementary properties of the discharge [7][8][9][10][11][12][13]. These models are generally based on a macroscopic description of electron and ion kinetics, in which a Maxwellian distribution of the velocities of the charged particles is assumed.…”