Comparison of the Calculation Heat Flux with OREX Flight Data
Direct simulation Monte Carlo method (DSMC) was adapted to the Earth atmosphere orbital entry problem. Molecular oxygen and nitrogen rotational and vibrational modes relaxation rates models parameters were selected from the available experimental data. Variable hard spheres (VHS) model parameters were derived from the Ω-integrals calculation taken from the literature sources. As an example OREX flight experiment was modeled. Good agreement between experimental flight data and calculated results of critical point heat flux was received. Also good agreement between present work calculation and others authors calculations of the resistance coefficient was achieved.