Shock Waves pp 597-602 | Cite as

Heat transfer modelling to catalytic protection systems of space vehicles entering into martian atmosphere

  • V. Kovalev
  • N. Afonina
  • V. Gromov
Conference paper


A kinetic model of heterogeneous recombination in dissociated carbon dioxide on high-temperature heat-shield coatings is developed; the model takes into account the nonequilibrium adsorption-desorption reactions of oxygen atoms and their recombination in the Eley-Rideal and Langmuir-Hinshelwood reactions. On the basis of a comparison of the calculated heat fluxes in dissociated carbon dioxide with those measured in plasma generator and the available literature data, the parameters of the catalysis model are chosen for the glassy coating of the Buran orbiter tile heat shield based on the SiO2-B2O3-SiB4 system. The effects of heteroge- neous recombination proceeding in accordance with the processes involving carbon atoms and those involving physically adsorbed oxygen atoms, on the heat fluxes to the glassy coating are analyzed on the surface temperature range from 300 to 2000° K.


Heat Flux Catalytic Surface Martian Atmosphere Test Regime Adsorb Oxygen Atom 
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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • V. Kovalev
    • 1
  • N. Afonina
    • 1
  • V. Gromov
    • 1
  1. 1.Moscow State University named after M.V. LomonosovMoscowRussia

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