Remote Plasma Generation of Radicals for Multistream Chemical Kinetic Studies

Chemical kinetic mechanisms are instrumental for the successful modeling of a number of phenomena in aerospace engineering.  The greatest uncertainties are observed in radical kinetics and experimental approaches for generation of radicals. Furthermore, studying their kinetics, remains difficult.  As a result, we propose novel means for generation of different classes of radicals in different gas streams and the interaction among these radicals by impinging these streams onto each other.  In this work, we computationally investigate a remote (downstream) plasma approach to generating radicals in specific single component gas streams and impinging these gas streams in an opposed flow configuration to study the radical interactions.  We consider remote plasma generated either by microwave or inductive coil excitation and characterize the radical concentration downstream of the active plasma.