Computational Fluid DynamicsNo Access

NUMERICAL SIMULATION OF HIGH-TEMPERATURE IONIZED AIR RADIATION ON UNSTRUCTURED GRIDS

XUEQIANG LIU

College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, China

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YIBIN WANG

College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, China

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YIZHAO WU

College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, China

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https://doi.org/10.1142/S0217984909018205Cited by:0 (Source: Crossref)

Abstract

A numerical method which is based on unstructured grids to compute high-temperature ionized air radiation is described. The multi-species N-S equations are used and the chemical model includes 11 species (O₂, N₂, O, N, NO, NO⁺, N⁺, O⁺, N⁺₂, O⁺₂, e^-) and 20 reactions. For simulating thermal non-equilibrium effect, the two-temperature model is considered. The finite volume method (FVM) is used for spatial and directional discretization for the RTE on unstructured grids. The code can deal with different kinds of species and radiative bands. Particularly, the Delta, Epsilon, Beta prime and Gamma prime bands of NO are considered in this paper. The numerical results of MESES-C for hypersonic flow with high-temperature ionized radiation are shown, and compared well with the reference data and experimental data.

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References

C. Park and F. S. Milos, Computational equations for radiating and ablating shock layers, AIAA-90-0356, 1990 . Google Scholar
C. H. Lin, Nonequilibrium Radiative Heating Prediction Method for Aeroassist Flowfields with Coupling to Flowfield solvers, Raleigh, 1991 (PhD thesis) . Google Scholar
K., Fujita, T. Abe and K. Suzuki, Air, radiation analysis of a superorbital reentry vehicle, AIAA Paper 1997-2561, 1997 . Google Scholar
J. Y. Mm-thy and S. R. Mathur, Journal of Thermophysics and Heat Transfer 12(3), 313 (1998). Web of Science, Google Scholar
J. Liu, H. M. Shang, and Y. S., Chen. Development of an unstructured radiation model applicable for two-dimensional planar, axisymmetric and three-dimensional geometries, AIAA paper 99-0974, 1999 . Google Scholar
R. C. Millikan and D. R. White, Journal of Chemical Physics 39(12), 3209 (1963), DOI: 10.1063/1.1734182. Crossref, Web of Science, ADS, Google Scholar
S. Morear, and C. O. Laux, A More Accurate Nonequlibrium Air Radiation Code:NEQAIR Second Generation, AIAA paper 1992-2968 . Google Scholar