Abstract
A set of Direct Simulation Monte Carlo (DSMC) chemical‐reaction models recently proposed by Bird and based solely on the collision energy and the vibrational energy levels of the species involved is applied to calculate non‐equilibrium chemical‐reaction rates for atmospheric reactions in hypersonic flows. The DSMC non‐equilibrium model predictions are in good agreement with theoretical models and experimental measurements. The observed agreement provides strong evidence that modeling chemical reactions using only the collision energy and the vibrational energy levels provides an accurate method for predicting non‐equilibrium chemical‐reaction rates.
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