The backward problem in plasma-assisted combustion: Experiments of nanosecond pulsed discharges driven by flames

Plasma technologies are a promising way of addressing number challenges in combustion, ranging from stabilization and flame-holding for hypersonic vehicles, to enabling low-emissions propulsion power. Whereas most works the literature have centered on forward problem: impact plasma different combustion metrics, including static dynamic flame stabilization; fewer studies been devoted backward or significance having strongly inhomogeneous environment, often unsteady time, discharge characteristics. In this perspectives article, problem is addressed hierarchical manner. First, implications proceeding an background gas, with gradients density composition, nonuniform flows, discussed. Next, these foundation experiments used as elementary building blocks explain nanosecond pulsed discharges environments, transient laminar combustor undergoing dynamics. Finally, strong coupling between illustrated imaging study, using transparent electrodes, mesoscale premixed dielectric barrier discharge. The demonstrate importance considering pulse-to-pulse evolution due changes environment when assistance processes, active control