Skip to main content
SpringerLink
Log in

Theory of rotational relaxation in a diatomic gas

  • Published:
Journal of Applied Mechanics and Technical Physics Aims and scope

Abstract

The three-dimensional problem of energy exchange between translational and rotational degrees of freedom in collisions of diatomic molecules with structureless particles is solved numerically within classical mechanics. The intermolecular interaction potentials were taken as exponential repulsions between the molecular atoms and the incident particles, while well-known experimental information [1] was used for the potential parameters. The results obtained were used for numerical Monte Carlo evaluation of the collision integral, determining the rotational relaxation time. Molecular nitrogen is chosen as an example. The results of calculation are in quite satisfactory agreement with experimental data.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature cited

  1. V. B. Leonas, “Studies of short-range intermolecular forces,” Usp. Fiz. Nauk,107, 29 (1972).

    Google Scholar 

  2. C. S. Wang-Chang, G. E. Uhlenbeck, and J. de Boer, “The heat conductivity of polyatomic gases,” in: Studies in Statistical Mechanics, Vol. 2 (1964).

  3. I. S. Berezin and N. P. Zhidkov, Numerical Methods [in Russian], Vol. 1, Nauka, Moscow (1966).

    Google Scholar 

  4. C. F. Hansen and W. E. Peason, “Three-dimensional model of collision-induced vibration transitions in homonuclear diatomic molecules,” J. Chem. Phys.,53, No. 9 (1970).

  5. E. H. Carnevale, C. Carey, and G. Larson, “Ultrasonic determination of rotational collision numbers and vibration relaxation times of polyatomic gases at high temperatures,” J. Chem. Phys.,47, No. 8 (1967).

  6. J. Parker, “Rotational and vibrational relaxation in diatomic gases,” in: Gasdynamics and heat transfer in Chemical Reactions [Russian translation], IL, Moscow (1962).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Moscow

    G. Ya. Gerasimov & V. N. Makarov

Authors
  1. G. Ya. Gerasimov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. N. Makarov
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Zhurnal Prikladnoi Mekhaniki Tekhnicheskoi Fiziki, No. 1, pp. 13–18, January–February, 1975.

The authors are grateful to Yu. N. Belyaev and E. G. Kolesnichenko for useful discussion of the results.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Gerasimov, G.Y., Makarov, V.N. Theory of rotational relaxation in a diatomic gas. J Appl Mech Tech Phys 16, 8–12 (1975). https://doi.org/10.1007/BF00853532

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00853532

Keywords

Search

Navigation