Shock Tube Investigation of Molecular Oxygen Dissociation at Temperatures of 4000 to 10800 K

  • L. B. Ibraguimova
  • O. P. Shatalov
  • Yu. V. Tunik
  • I. E. Zabelinskii


The quantitative experimental data on the vibrational temperature of dissociating molecules are informative characteristic for the evaluation of the relationship between the rates of vibrational relaxation and dissociation and for the development of suitable theoretical models of these processes. The evident lack of such data has already resulted in a explosive increase in the number of various dissociation models [1]. The technique of the measurement of the vibrational temperature of oxygen molecules behind the wave front under thermal and chemical nonequilibrium conditions was described earlier [2]. In the present work the evolution of the vibrational temperature T v behind the strong shock front was used for determination of oxygen dissociation rate constants and vibrational relaxation time under the thermal nonequilibrium conditions. This allows the testing of some of the theoretical models of thermal nonequilibrium dissociation.


Shock Front Oxygen Molecule Vibrational Relaxation Vibrational Temperature Dissociation Rate Constant 
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© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • L. B. Ibraguimova
    • 1
  • O. P. Shatalov
    • 1
  • Yu. V. Tunik
    • 1
  • I. E. Zabelinskii
    • 1
  1. 1.Institute of MechanicsLomonosov Moscow State UniversityMoscowRussia

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