Analysis of thermochemical nonequilibrium models for carbon dioxide flows

Stacey G. Rock, Graham V. Candler, Hans G. Hornung

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28 Scopus citations


The aerothermodynamics of thermochemical nonequilibrium carbon dioxide flows are studied. The chemical kinetics models of McKenzie and Park are implemented in a three-dimensional computational fluid dynamics code. The code incorporates a five-species gas model characterized by translational-rotational and vibrational temperatures. Solutions are obtained for flow over finite-length elliptical and circular cylinders for a freestream condition of u= 4.24 km/s, T= 1970 K, and hθ∞ = 9.0 MJ/kg. The computed flowfields are then employed to calculate Mach-Zehnder interferograms for comparison with experimental data. The accuracy of the chemical kinetics models is determined through this comparison. Also, the methodology of the three-dimensional thermochemical nonequilibrium code is verified by the reproduction of the experiments.

Original languageEnglish (US)
Pages (from-to)2255-2262
Number of pages8
JournalAIAA journal
Issue number12
StatePublished - Dec 1993

Bibliographical note

Funding Information:
This work was supported by the following grants: NASA Langley Research Center Cooperative Agreement NCC1-140 with the Aerothermodynamics Branch of the Space Systems Division, and NASA Grant NAGW-1331 to the Mars Mission Research Center at North Carolina State University.


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