Development and Suppression of Instability in Post-Discharge Channel

Summary form only given. This study concentrates on the dynamics of perturbed zone generated by filamentary short-pulse discharge in still atmospheric air and in high-speed airflows. The effects found are supposed to be applied for high-speed combustion enhancement due to non-equilibrium excitation of air/fuel composition and mixing acceleration of non-premixed multi-components flow. Experimental and theoretical results presented in this work demonstrate that turbulent motion arising in the after-spark channel can essentially enhance the rate of multi-components mixing. The development and/or suppression of instability can be controlled effectively by the parameters of supplying electric circuit.