Abstract
Electrical and thermal actuators are devices in the flow field which are used for flow control by electric or thermal action, examples can be presented by discharges (dielectric barrier discharge, sliding discharge, glow discharge, high-frequency capacitive discharge, etc). Today much work is devoted to the interaction of discharge with air flow. This work presents a theoretical study of the thermal and plasma effects of the influence of discharge on air flow. Investigation of a plasma actuator is very difficult because of the multiscale nature of the problem, which follows from some order differences in space and time differences in space charge, ion and electrons kinetics and plasma chemistry dynamics. However, on the thermal and hydrodynamic scales the natures of thermal and plasma actuators are similar. The electron energy distribution function is found from a solution of the Boltzmann equation in a two-term approximation. Numerical simulation of thermal and plasma actuators has been carried out with a parallel gas dynamics tool (GDT) package.
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