Research on Nonequilibrium Phenomena at NASA Ames’s E.A.S.T. Facility

  • Surendra P. Sharma
Conference paper

Abstract

The paper reviews the recent experimental and theoretical research activities on nonequilibrium phenomena in hypersonic flows conducted at NASA Ames’s E.A.S.T. facility. The activities include: 1) assessment of our present capability of computing nonequilibrium radiative emission in the light of recent measurements in air and nitrogen in the facility, 2) research on expanding flows: measurements of nonequilibrium populations of 9 lower vibrational levels of nitrogen in an expanding flow, measurement of Landau-Teller correction factor for expanding flows and development of a 1-D nozzle code accounting for detailed state-by-state vibrational nonequilibrium, 3) study of flow phenomena in shock tubes using a time-accurate axisymmetric fluid code, and 4) analytical investigation of coupled rotational-vibrational-dissociation phenomena.

Key words

Shock tube Hypersonic Nonequilibrium flows 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Surendra P. Sharma
    • 1
  1. 1.NASA Ames Research CenterMoffett FieldUSA

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