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International Journal of Aerospace Engineering
Volume 2012 (2012), Article ID 402653, 8 pages
http://dx.doi.org/10.1155/2012/402653
Research Article

Implementation of Surface Radiation and Fluid-Structure Thermal Coupling in Atmospheric Reentry

Ecole Polytechnique Fédérale de Lausanne, Interdisciplinary Aerodynamics Group, Station 9, 1015 Lausanne, Switzerland

Received 20 October 2011; Revised 16 January 2012; Accepted 24 January 2012

Academic Editor: Roger L. Davis

Copyright © 2012 Ojas Joshi and Pénélope Leyland. 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.

Abstract

During atmospheric reentry, radiative heating is one of the most important component of the total heat flux. In this paper, we investigate how the thermal radiation coming from the postshock region interacts with the spacecraft structure. A model that takes into account the radiation reflected by the surface is developed and implemented in a solid solver. A partitioned algorithm performs the coupling between the fluid and the solid thermal fields. Numerical simulation of a hollow cone head and a deployed flap region shows the effects of the radiative cooling and the significance of the surface radiation.