Simulations of self-organized filaments in a dielectric barrier glow discharge plasma

Brauer, I.; Punset, C.; Purwins, H.‐G.; Boeuf, Jean-Pierre

doi:10.1063/1.370556

Cited by 128 publications

(109 citation statements)

References 9 publications

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“…Brauer et al [29] used a self-consistent two-dimensional fluid model of a He DBD (2.4·10 4 Pa, 0.5 mm gap). The authors could show how an initially homogeneous plasma abruptly turned into regularly spaced glow discharge regions after about 30 µs, which corresponded to 6 cycles of the applied sinusoidal voltage.…”

Section: Modelling Of Pattern Formation In Vbdsmentioning

confidence: 99%

Collective phenomena in volume and surface barrier discharges

Kogelschatz

2010

J. Phys.: Conf. Ser.

105

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Abstract. Barrier discharges are increasingly used as a cost-effective configuration to produce non-equilibrium plasmas at atmospheric pressure. This way, copious amounts of electrons, ions, free radicals and excited species can be generated without significant heating of the background gas. In most applications the barrier is made of dielectric material. Major applications utilizing mainly dielectric barriers include ozone generation, surface cleaning and modification, polymer and textile treatment, sterilization, pollution control, CO 2 lasers, excimer lamps, plasma display panels (flat TV screens). More recent research efforts are devoted to biomedical applications and to plasma actuators for flow control. Sinusoidal feeding voltages at various frequencies as well as pulsed excitation schemes are used. Volume as well as surface barrier discharges can exist in the form of filamentary, regularly patterned or diffuse, laterally homogeneous discharges. The physical effects leading to collective phenomena in volume and surface barrier discharges are discussed in detail. Special attention is paid to selforganization of current filaments and pattern formation. Major similarities of the two types of barrier discharges are elaborated.

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Section: Modelling Of Pattern Formation In Vbdsmentioning

confidence: 99%

Collective phenomena in volume and surface barrier discharges

Kogelschatz

2010

J. Phys.: Conf. Ser.

105

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“…isolated solitary filaments, corresponding bifurcation cascades, scattering, generation, annihilation, the formation of molecules, breathing filaments and so on are a natural outflow of these models. (6)(7)(8)(10)(11)(12)14,16,28,34,(38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52) We mention that a lot of work has been done also with respect to structures that are not composed of filaments. With respect to this experimental work we refer to the literature.…”

Section: Discussionmentioning

confidence: 99%

Self-Organized Quasiparticles and Other Patterns in Planar Gas-Discharge Systems

Purwins¹,

Astrov²,

Brauer³

2001

Proceedings of the 5th Experimental Chaos Conference

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A summary is given for the work that has been done on pattern formation in planar ac-and dc-gas-discharge systems with high ohmic and dielectric barrier respectively at the Institute of Applied Physics at the University of Muenster. WeIl defined stationary and moving solitary filaments are observed that may be referred to as selforganized quasiparticles. Among others, filaments can be scattered, generated, or annihilated, and the formation of filament clusters ("molecules") is observed. For appropriate parameters filaments in the "gaseous" phase are observed, and the condensation of large assemblies to "crystalline" phase and "liquid" phase is recorded, too. Filaments may generate superstructures e.g. domain patterns. The experimental work demonstrates that a filament is a generic pattern. In addition, reference is made to non-filamentary patterns. Finally, a list of references referring to models and numerical treatment is presented.The evolution of self -organized patterns in gas-discharge systems is well known since the middle of the 18th century. It is amazing to observe that so far little attention has been payed to a systematic investigation of these patterns from the point of view of modern Nonlinear Dynamics and Pattern Formation. T o fill this gap at the Institute of Applied Physics at the University of Muenster extensive experimental, theoretical and numerical investigations have been carried out for lateral acand dc-gas-dicharge systems. In this paper we mainly concentrate on the experimental results thereby emphazising spatially welllocalized large amplitude patterns that behave like quasiparticles as it turns out. A detailed discussion of the experimental results in terms of recent qualitative and quantitative models and reference to other work that is related to the work carried out at the Institute of Applied Physics will be done elsewhere.Due to the spatial extension, because of the dissipation of electric energy and as result of the intrinsic nonlinearities of transport processes gas discharge systems may generate self-organized transient patterns and attractors. As electronic systems they can easily be driven far away from thermodynamic equilibrium. Also the formation of spatial patterns is supported by the absence of a reference system in the discharge gap in contrast e.g. to the rigid ion lattice in solid state devices. These properties make gas-discharge systems exceptional for studying self-organized patterns.

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“…[18,19] The model is based on two-moment description of the electrons and ions, which are coupled with the Poisson equation for the electrical field. The ionisation rate and the particle mobility of N 2 as filling gas are used.…”

Section: Computer Simulation Of Dischargementioning

confidence: 99%

Development of DBD‐Plasmas Across Fibre Rovings

Ermel

Kurrat

2009

Plasma Processes & Polymers

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Development of dielectric barrier discharge (DBD) plasmas across a 3D‐microporous medium as a glass fibre fabric is introduced in this paper. The barrier plasma is produced on the high field blade‐to‐plate arrangement with the lateral air flow at atmospheric pressure as a background gas. A uniformly distributed production of discharges over the substrate surface is obtained by the generation of a high inhomogeneous field along the blade electrode. The redistribution of the field due to insertion of the microporous medium in the plasma region is also investigated. The simulation results showed that the microdischarge develops in cavity of the roving as a streamer. Electron density decays due to the rising impact on the wall of orifice. The field shift in the neighbour cells causes avalanche‐like plasma ignition through the roving during the DBD development.

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Simulations of self-organized filaments in a dielectric barrier glow discharge plasma

Cited by 128 publications

References 9 publications

Collective phenomena in volume and surface barrier discharges

Collective phenomena in volume and surface barrier discharges

Self-Organized Quasiparticles and Other Patterns in Planar Gas-Discharge Systems

Development of DBD‐Plasmas Across Fibre Rovings

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