One-dimensional lattice Boltzmann simulation of parallel plate dielectric barrier discharge plasma in atmospheric argon

Abstract

The purpose of this paper is to apply lattice Boltzmann (LB) D1Q3 scheme to numerical simulation of multi-component plasma by dielectric barrier discharge (DBD). The DBD in atmospheric argon is generated in a small gap of 0.5 mm between two parallel plate electrodes, and driven by applying high voltage AC. In order to find characteristics of the DBD plasma, the LB numerical model is setup coupled with continuity and Poisson equations. The simulation results enable us to adopt LB method for simulation of DBD plasma. The electron density and electron energy are, at most, 2.5 × 1018 m−3 and 8.1 eV when frequency is 20 kHz, voltage 3000 V, and relative permittivity 20. The influences of relative permittivity, driving frequency and dielectric width on the plasma are analyzed. The DBD plasma can be enhanced with higher relative permittivity and driving frequency in terms of electron energy and electron density.