Calculation of the Spectral Radiation of Shock Waves in Air with the Use of the eRC Model

Abstract

Calculations of the spectral emissivity of shock waves in air at velocities of 7–8 km/s were carried out, using the electron-radiative-collision model (eRC), under the conditions of shock-wave experiments [Cruden, B.A. and Brandis, A.V., Measurement of radiative nonequilibrium for air shocks between 7 and 9 km/s, JTHT, 2019]. A kinetic model of the population and depletion of electronically excited quantum states of diatomic molecules is presented. Satisfactory agreement between the obtained calculated and experimental data is demonstrated. The formulation of urgent problems for the further development of eRC-models is given.