Periodic-driven vibration of discharge filaments induced by surface charges in a dielectric-barrier discharge

Li, Ben; Dong, Lifang; Zhang, Chao; Shen, Zhongkai; Zhang, Xinpu

doi:10.1088/0022-3727/47/5/055205

Cited by 24 publications

(17 citation statements)

References 20 publications

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“…Owing to the inhibition effect of the surface charges, the next discharges will occur preferentially at the positions, where the total inhibition effect is minimal. 13,21 In the following, the electric field intensity of the surface charges accumulated during the first discharges is introduced to describe the inhibition effect, and the spatial distribution of the electric field is simulated. The simulation bases on two equations: (2), where U is the value of the electric potential, Q is electric quantity of each surface charge, e 0 is permittivity of vacuum, r is the distance between any field point and point charge, E is the electric field intensity, r is the vector differential operator, and r ¼ @ @xĩ þ @ @yj .…”

Section: Resultsmentioning

confidence: 99%

Formation mechanism of dot-line square superlattice pattern in dielectric barrier discharge

et al. 2014

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We investigate the formation mechanism of the dot-line square superlattice pattern (DLSSP) in dielectric barrier discharge. The spatio-temporal structure studied by using the intensified-charge coupled device camera shows that the DLSSP is an interleaving of three different subpatterns in one half voltage cycle. The dot square lattice discharges first and, then, the two kinds of line square lattices, which form square grid structures discharge twice. When the gas pressure is varied, DLSSP can transform from square superlattice pattern (SSP). The spectral line profile method is used to compare the electron densities, which represent the amounts of surface charges qualitatively. It is found that the amount of surface charges accumulated by the first discharge of DLSSP is less than that of SSP, leading to a bigger discharge area of the following discharge (lines of DLSSP instead of halos of SSP). The spatial distribution of the electric field of the surface charges is simulated to explain the formation of DLSSP. This paper may provide a deeper understanding for the formation mechanism of complex superlattice patterns in DBD. V C 2014 AIP Publishing LLC.

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Section: Resultsmentioning

confidence: 99%

Formation mechanism of dot-line square superlattice pattern in dielectric barrier discharge

et al. 2014

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“…3(c) and 3(d)), which are very like the vibrating hexagonal superlattice pattern discovered in dielectric barrier discharge. [23] In the first bigsmall dot hexagonal superlattice pattern, big bright spots are located in each hexagon frame constituted by the small spots, and each of the big spots is surrounded by six small bright spots and shared with adjacent units. When the intensity ratio of two Turing modes increases from 3 to 12, the second big-small dot hexagon pattern is obtained, where each of the big bright spots is surrounded by six dark spots and shared with adjacent units.…”

Section: Two-layer Nonlinear Couplingmentioning

confidence: 99%

Numerical simulation and analysis of complex patterns in a two-layer coupled reaction diffusion system

Li¹,

Bai²,

Li³

et al. 2015

Chinese Phys. B

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The resonance interaction between two modes is investigated using a two-layer coupled Brusselator model. When two different wavelength modes satisfy resonance conditions, new modes will appear, and a variety of superlattice patterns can be obtained in a short wavelength mode subsystem. We find that even though the wavenumbers of two Turing modes are fixed, the parameter changes have influences on wave intensity and pattern selection. When a hexagon pattern occurs in the short wavelength mode layer and a stripe pattern appears in the long wavelength mode layer, the Hopf instability may happen in a nonlinearly coupled model, and twinkling-eye hexagon and travelling hexagon patterns will be obtained. The symmetries of patterns resulting from the coupled modes may be different from those of their parents, such as the cluster hexagon pattern and square pattern. With the increase of perturbation and coupling intensity, the nonlinear system will convert between a static pattern and a dynamic pattern when the Turing instability and Hopf instability happen in the nonlinear system. Besides the wavenumber ratio and intensity ratio of the two different wavelength Turing modes, perturbation and coupling intensity play an important role in the pattern formation and selection. According to the simulation results, we find that two modes with different symmetries can also be in the spatial resonance under certain conditions, and complex patterns appear in the two-layer coupled reaction diffusion systems.

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“…Recently, a hexagonal superlattice pattern has been observed, which consists on several hollow rings equally distributed on the dielectric surface [9]. Observed with short exposure time photographs, a hollow ring is the composition of periodic-driven vibrating motion of discharge filament pairs.…”

Section: Introductionmentioning

confidence: 99%

Transition from diffuse to self-organized discharge in a high frequency dielectric barrier discharge

Belinger

Naudé

Ghérardi

2017

Eur. Phys. J. Appl. Phys.

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Abstract. Depending on the operating conditions, different regimes can be obtained in a dielectric barrier discharge (DBD): filamentary, diffuse (also called homogeneous) or self-organized. For a plane-to-plane DBD operated at high frequency (160 kHz) and at atmospheric pressure in helium gas, we show that the addition of a small amount of nitrogen induces a transition from the diffuse regime to a self-organized regime characterized by the appearance of filaments at the exit of the discharge. In this paper, we detail mechanisms that could be responsible of the transition from diffuse mode to this self-organized mode. We point out the critical role of the power supply and the importance of the gas memory effect from one discharge to the following one on the transition to the self-organised mode. The self-organized mode is usually attributed to a surface memory effect. In this work, we show an additional involvement of the gas memory effect on the self-organized mode.

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Periodic-driven vibration of discharge filaments induced by surface charges in a dielectric-barrier discharge

Cited by 24 publications

References 20 publications

Formation mechanism of dot-line square superlattice pattern in dielectric barrier discharge

Formation mechanism of dot-line square superlattice pattern in dielectric barrier discharge

Numerical simulation and analysis of complex patterns in a two-layer coupled reaction diffusion system

Transition from diffuse to self-organized discharge in a high frequency dielectric barrier discharge

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