Influence of radiative heating on a Martian orbiter

Autor: Philippe Rivière, David E. Zeitoun, Anouar Soufiani, Lionel Tessé, Olivier Rouzaud, Tristan Soubrie
Přispěvatelé: Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion (EM2C), CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université Paris Saclay (COmUE), Institut universitaire des systèmes thermiques industriels (IUSTI), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Université Paris Saclay (COmUE)-Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Journal of Thermophysics and Heat Transfer
Journal of Thermophysics and Heat Transfer, 2008, 22 (1), pp.10-19. ⟨10.2514/1.28259⟩
Journal of Thermophysics and Heat Transfer, American Institute of Aeronautics and Astronautics, 2008, 22 (1), pp.10-19. ⟨10.2514/1.28259⟩
ISSN: 0887-8722
DOI: 10.2514/1.28259⟩
Popis: A computational platform was developed to study radiation of high-temperature gases during atmospheric reentries. This platform includes a 2-D axisymmetrical Navier-Stokes solver and a radiative heat transfer solver based on a Monte Carlo method. In this paper, only gas radiation occurring during entries in the Martian atmosphere is considered. Gas radiative properties are obtained using a statistical narrowband model for CO and CO 2 molecules in high-temperature and low-pressure conditions. Computations on a test case related to the Mars sample return orbiter enabled us to set up a calculation methodology that includes a loose coupling of aerothermodynamics and radiative transfer. Monte Carlo band model calculations are validated against line-by-line calculation and a ray-tracing method. Results show that radiative fluxes on the rear part are important in comparison with convective fluxes. They are mostly due to CO 2 infrared radiation. The effects of radiative transfer on the flow structure and temperature fields in both the front shield and the wake regions are discussed.
Databáze: OpenAIRE