Numerical study of active species generation and delivery to a dielectric surface from a helium atmospheric-pressure plasma jet

Atmospheric plasma jets are attracting attentions for being used as a source of active chemical species such as OH, O and O₃ at a low gas temperature. Generation of active species and their delivery to surfaces is of an interest for biomedical and surface modification applications. This work investigates by means of a 2D self-consistent time dependent fluid model, the performance of DC-pulsed driven helium atmospheric plasma jet as source of active species to a dielectric surface. The investigation is based on the fluxes and the densities of active species at a dielectric´s surface including OH, O₃ and O^-₂. The effects of different parameter such as the gas flow rate, water impurities levels and long time scale chemical reactions on the generation and delivery of active species is presented.