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

  • Surendra P. Sharma
Conference paper


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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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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