Electrical modelling of homogeneous and filamentary dielectric barrier discharge at atmospheric pressure

Abdelhamid, Laiadi; Chentouf, Abdellah; Laghmich, Youssef

doi:10.1016/j.matpr.2019.10.112

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…The diffusion coefficient (D k ) is the same as that in [24] and [25]. The mobility of the kth heavy species ( k m ) is calculated by formula (8). The background gas density is obtained by the following equation [16,17] ( ) w w 1 .…”

Section: Simulation Modelmentioning

confidence: 99%

“…Numerical simulations and experiments have been carried out to investigate homogeneous DBDs at least once [5][6][7][8]. These papers show that DBD mode depends on many factors, such as the working gas, driving frequency, electrode voltage, electrode gap and dielectric layer structure [5][6][7][8]. However, reports are relatively rare regarding the role of gas temperature in mode transition.…”

Section: Introductionmentioning

confidence: 99%

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Numerical studies on the influences of gas temperature on atmospheric-pressure helium dielectric barrier discharge characteristics

Huo

Lin

et al. 2023

Plasma Sci. Technol.

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Compared to a low pressure dielectric barrier discharge(DBD), the collisions among particles are more frequent and the gas temperature rise is more high in an atmospheric pressure DBD. In this paper, a two-dimensional fluid model is applied to investigate the influences of gas temperature rise on an atmospheric pressure helium DBD. With the increase of the gas temperature, it is found that (1) a helium discharge can evolve from discharge column to homogeneous discharge; (2) the breakdown time advances and the gas breakdown voltage decreases; (3) the evolution of spatial distribution of the electron density is almost the same with the helium atom density. The most significant discrepancy between them is that the electron densities are high at some positions where the helium atom densities are nevertheless low. What’s more, the radial reduced electric fields under different gas temperatures are obtained. The physical reasons for the gas temperature effects are discussed.The simulation results can provide a better understanding of the roles of the radial reduced electric field and the heavy particle.

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