ASSESSMENT OF NONEQUILIBRIUM RADIATION COMPUTATION METHODS FOR HYPERSONIC FLOWS

Surendra P. Sharma
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Surendra P. Sharma: NASA Ames Research Center, Moffett Field, CA 94035, USA

International Journal of Modern Physics C (IJMPC), 1993, vol. 04, issue 04, 847-881

Abstract: The present understanding of shock-layer radiation in the low density regime, as appropriate to hypersonic vehicles, is surveyed. Based on the relative importance of electron excitation and radiation transport, the hypersonic flows are divided into three groups: weakly ionized, moderately ionized, and highly ionized flows. In the light of this division, the existing laboratory and flight data are scrutinized. Finally an assessment of the nonequilibrium radiation computation methods for the three regimes in hypersonic flows is presented. The assessment is conducted by comparing experimental data against the values predicted by the physical model.

Date: 1993
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DOI: 10.1142/S0129183193000689

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