Hot filaments for plasma aerodynamic applications

Fundamental theoretical and computer investigations devoted to analysis of hot filaments of streamer MW discharge features and to shock wave propagation through the disturbed by MW filaments area has been made. This analysis includes: a) modeling of the hot fila- ment heating in dead air; b) modeling of SW (M=2) propagation through the hot filament; c) consideration of different filament forms and temperatures. Analysis has shown that rise of the filament temperature up to 2500-3000 K and producing of high concentrations of O and NO components can decrease ignition time of hydrocarbon fuel by hot MW filaments. Analysis of shock wave (SW) propagation through the hot filaments showed that there is strong influence on SW, which leads to SW destruction if long filaments directed in the same way as the SW. This shows the possibility of MW hot filament applicability for flow control.