Vibrational Dissociation Relaxation in a Multicomponent Mixture of Viscous Heat-Conducting Gases

  • Yu. P. Lunkin
Conference paper
Part of the IUTAM Symposia book series (IUTAM)


To take account of relaxation effects in problems of gasdynamics it is necessary to determine the thermal flow vector in the energy equation and to obtain additional diffusion-relaxation equations. In the present paper equations are derived which describe simultaneous process of vibrational relaxation and non-equilibrium dissociation in a multicomponent mixture of viscous and heat-conducting gases. These equations take into account two factors: a) the influence of non equilibrium excitation of molecule vibrational degrees of freedom on chemical reaction rate and total heat flow, b) the influence of chemical reaction rate on the change of average vibrational energy of each dissociating component.


Shock Wave Supersonic Flow Vibrational Level Laminary Boundary Layer Multicomponent Mixture 


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    Hirsciifelder, J. O., Ch. F. CURTISS and R. B. BIRD: Molecular Theory of Gases and Liquids. New York—London: 1954.Google Scholar
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    Lunkin, Yu. P., and F. D. Popov: J. techn. Phys. 36, 4, 661 (1966).Google Scholar
  3. [3]
    Treanor, C. E.. and P. V. Marrone: Phys. Fluids 5, 1022 (1962).ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag/Wien 1968

Authors and Affiliations

  • Yu. P. Lunkin
    • 1
  1. 1.LeningradU.S.S.R.

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