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International Journal of Aerospace Engineering
Volume 2012, Article ID 597930, 9 pages
Research Article

Radiation Analysis for Two Trajectory Points of the Fire II Entry

1Ecole Polytechnique Fédérale de Lausanne, Interdisciplinary Aerodynamics Group, Station 9, 1015 Lausanne, Switzerland
2Centre for Hypersonics, University of Queensland, St Lucia, QLD 4072, Australia

Received 26 July 2011; Revised 21 October 2011; Accepted 25 October 2011

Academic Editor: I. D. Boyd

Copyright © 2012 Romain Savajano et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Numerical rebuilding of two trajectory points (t=1634 s and t=1643 s) of the Fire II mission has been carried out to predict the radiative heat flux for nonequilibrium and close-to-equilibrium conditions. The simulations have been performed with eilmer3 in an uncoupled way and using a tangent slab method for the radiation transport. Different population models (QSS and Boltzmann) have been compared, and the influence of catalytic wall condition was taken into account. An analysis on the spectral range and on the spectral resolution has also been carried out.