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Prediction of Stagnation-Point Radiative Heating for FIRE II

  • Sung Min Jo
  • Gisu Park
  • Oh Joon KwonEmail author
Conference paper

Abstract

In the present study, modeling of radiative shock layer for predicting stagnation-point heating environment was conducted for a FIRE II configuration. For the analysis of the one-dimensional flow in thermochemical nonequilibrium, a viscous shock layer method with a two-temperature model was utilized including radiative cooling. To estimate the effect of radiative cooling, the flow and radiation fields were analyzed in a loosely coupled manner. To estimate the radiative heating with the effect of non-Boltzmann state population distributions, SPRADIAN14 was utilized. To improve the accuracy of non-Boltzmann modeling, three new electron impact rate models for atomic N and one for O were developed by adopting the state-of-the-art quantum mechanical results for transitions from low-lying electronic levels. The methodologies were verified by applying them to benchmark problems. It was shown that the results are accurate and physically reliable in comparison with available data. Then, two of the trajectory points of FIRE II were analyzed, and the effects of new electron impact rate models were validated by comparing the results with those from the previous rate model. It was found that most of the discrepancies in the previous rate model from the flight data were resolved by introducing the new models, particularly by the “Frost-Tayal” model.

Notes

Acknowledgment

The authors gratefully acknowledge funding for this work through ADD Grant UD150034.

References

  1. 1.
    D.L. Cauchon, NASA TM X-1402 (1967)Google Scholar
  2. 2.
    C.O. Johnston et al., Nonequilibrium stagnation-line radiative heating for fire II. J. Spacecr. Rocket. 45(6) (2008)Google Scholar
  3. 3.
    C. Park, J. Thermophys. Heat Transf. 18, 3 (2004)Google Scholar
  4. 4.
    C. Park, H.K. Ahn, J. Thermophys. Heat Transf. 13, 1 (1999)CrossRefGoogle Scholar
  5. 5.
    E.E. Whiting et al., NEQAIR96, nonequilibrium and equilibrium radiative transport and spectra program: User’s manual, NASA RP-1389 (1996)Google Scholar
  6. 6.
    C.O. Johnston et al., Non-Boltzmann modeling for air shock-layer radiation at lunar-return conditions. J. Spacecr. Rocket. 45(5) (2008)Google Scholar
  7. 7.
    M. Panesi et al., Fire II flight experiment analysis by means of a collisional-radiative model. J. Thermophys. Heat Transf. 23, 2 (2009)CrossRefGoogle Scholar
  8. 8.
    D. Potter, Doctoral Thesis, University of Queensland, 2011Google Scholar
  9. 9.
    B. Lopez et al., Improved non-Boltzmann modeling for nitrogen atoms, in AIAA 2016–4431, 46th AIAA Thermophysics Conference, Washington, DC (2016)Google Scholar
  10. 10.
    C. Park, Nonequilibrium Hypersonic Aerothermodynamics (Wiley, New York, 1990), pp. 119–143Google Scholar
  11. 11.
    H.J. Nam, O.J. Kwon, Infrared Phys. Technol. 67 (2014)Google Scholar
  12. 12.
    S.Y. Hyun, Doctoral Thesis, KAIST, Daejeon, 2009Google Scholar
  13. 13.
    C. Park et al., Chemical-kinetic parameters of hyperbolic earth entry. J. Thermophys. Heat Transf. 15, 1 (2001)CrossRefGoogle Scholar
  14. 14.
    C.O. Laux, High Temperature Gas Dynamics Lab Report T-288 (Stanford University, Stanford, 1993)Google Scholar
  15. 15.
    C. Park, in AIAA 2008-1206, 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, 2008Google Scholar
  16. 16.
    C. Park, in AIAA 2008-1446, 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, 2008Google Scholar
  17. 17.
    R.M. Frost et al., Calculated cross sections and measured rate coefficients for electron-impact excitation of neutral and singly ionized nitrogen. J. Appl. Phys. 84(6) (1998)Google Scholar
  18. 18.
    S.S. Tayal, Astrophys. J. Suppl. Ser. 163 (2006)Google Scholar
  19. 19.
    O. Zatsarinny, S.S. Tayal, Astrophys. J. Suppl. Ser. 148 (2003)Google Scholar
  20. 20.
    J.A. Kunc, W.H. Soon, Phys. Rev. A 40, 10 (1989)Google Scholar
  21. 21.
    W.H. Soon, J.A. Kunc, Phys. Rev. A 41, 2 (1990)Google Scholar
  22. 22.
    K. Sutton, AIAA Paper 84-1733 (1984)Google Scholar
  23. 23.
    R.N. Gupta, AIAA Paper 87-1576 (1987)Google Scholar
  24. 24.
    D.R. Olynick et al., Comparisons of coupled radiative Navier-Stokes flow solutions with the project fire II flight data. AIAA Paper, 94–1955 (1994)Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Aerospace EngineeringKorea Advanced Institute of Science and Technology (KAIST)DaejeonRepublic of Korea

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