Abstract
Mathematical model based on drift-diffusion approximation of hydrodynamic method of plasma description with two-temperature approximation was carried out for air ionization case in order to model process of interaction between dielectric barrier discharge plasma actuator and gas flow. Electron-induced ionization-recombination mechanism was used. Air was considered as mixture of molecular oxygen and nitrogen in proportion at normal conditions. Process kinetics was described by electron-induced reactions with molecular nitrogen and oxygen, ions and electron components. Equations system consisted of transport equations for concentrations of all mixture components, electron temperature and equation for electric potential was solved. Extended Scharfetter-Gummel scheme for large quantity of transport equations was developed. It was shown, that main influence on charge distribution has electron temperature. This model could be used for volume and surface charge density estimations necessary for volume force calculation in the vicinity of electrodes.
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