Diagnostics of average temperature fields and electron densities in a barrier discharge plasma in the presence of air flow

We have made measurements with the optical method of the temperature and electron density distributions in an ionized gas flow induced by a high-frequency barrier discharge in the presence of air flow. Interaction with the incident flow leads to a maximum of the average-temperature distribution in the vicinity of the needle electrodes, and a maximum of the average electron density in the region of the opposite electrode.