MEASUREMENTS OF THE VIBRATIONAL RELAXATION RATES OF NITROGEN AND OXYGEN.

Abstract

An infrared diagnostic method has been developed and used to observe the vibrational relaxation of N2 using CO additive and O2 using H2O additive. Relaxation rate data for both N2 and O2 are obtained behind shock waves which are in very good agreement with other published data. Similar measurements in nozzle expansion flows of N2 indicate lower vibrational temperatures than anticipated on the basis of the shock-wave data. This work was done as an experimental study of thermal nonequilibrium which can occur in air and its component gases. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1969
Accession Number
AD0699239

Entities

People

  • Anthony L. Russo

Organizations

  • Calspan

Tags

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Agreements
  • Measurement
  • Nitrogen
  • Shock
  • Shock Waves
  • Vibrational Relaxation
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Rocket Propulsion.
  • Spectroscopy.