Vibrational relaxation of carbon dioxide in state-to-state and multi-temperature approaches

Carbon dioxide is a key species for many fundamental and applied problems. Using state-resolved models gives a deep insight into the physics of vibrationally excited states, but at the same time, it is computationally very expensive. A study examines the routes to simplify the simulation of CO${}_{2}$ vibrational relaxation by revelation of main vibrational relaxation channels and by using the reduced-order (multitemperature) models