This work presents results of time-resolved, absolute measurements of OH number density,
nitrogen vibrational temperature, and translational-rotational temperature in air and lean
hydrogen-air mixtures excited by a diffuse filament nanosecond pulse discharge, at a
pressure of 100 Torr and high specific energy loading. The main objective of these
measurements is to study kinetics of OH radicals at the conditions of strong vibrational
excitation of nitrogen, below autoignition temperature. N 2 vibrational temperature and gas …

This work presents time-resolved, absolute measurements of OH number density, nitrogen
vibrational temperature, and translational-rotational temperature in nitrogen, air, and lean
hydrogen-air mixtures excited in a diffuse filament nanosecond pulse discharge, at a
pressure of 100 Torr and high specific energy loading. The main objective of these
measurements is to study a possible effect of nitrogen vibrational excitation on low-
temperature kinetics of HO2 and OH radicals. N2 vibrational temperature and gas …