A Multizone Global Model for the analysis of Ozone Transport in Surface DBD Systems

Cold atmospheric pressure plasma’s applications are gaining interest in the biomedical and industrial fields. In particular, atmospheric pressure surface dielectric barrier discharge (SDBD) plasma constitutes a promising approach for the decontamination of large and sensitive substrates that require non-contact plasma treatment, as their process mostly relies on the transfer of plasma-generated reactive species, such as ozone, to the treatment samples. In this context, numerical modeling of plasmas can represent a valuable tool to enhance the understanding of the fundamental mechanisms promoting the process. As some detailed models, such as self-consistent fluid models, would accurately simulate the ozone transport to the substrate, these often require significant computing power and high execution times. Multizone global modeling of plasmas might represent a valid alternative to consider detailed chemical mechanisms while including approximated mechanisms for the transport of species from the plasma to the gas phase. In this work, the ozone concentration predicted by a multizone global model is compared with experimental measurements in order to characterise and understand the influence of species transport on the simulation results.