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Simulation of Aluminum Jet Expansion in Active Geophysical Experiments Taking into Account Deviation of Ionization State from Thermodynamic Equilibrium

  • Marina KuzmichevaEmail author
Conference paper
Part of the Springer Proceedings in Earth and Environmental Sciences book series (SPEES)

Abstract

The results of the simulation of non-equilibrium ionization state of a rapidly expanding aluminum plasma jet of an explosive generator are presented. The jet is injected into ionosphere in active geophysical rocket experiments to produce a calibrated disturbance. A state of plasma with rapidly changing parameters deviates from equilibrium state, so numerical simulations of its behavior were performed by solving gas dynamics equations jointly with equations for ionization kinetics. “Freezing” of ionization degree in rapidly expanding plasma jet is demonstrated. Typical rates of ionization–recombination processes for electron temperatures and concentrations obtained in simulations are presented. Influence of ionization–recombination processes under consideration on values of gas dynamic parameters is shown. The applicability of the obtained results for various injection scenarios is demonstrated.

Keywords

Active geophysical experiment Ionization Calibrated disturbance 

References

  1. 1.
    Adushkin, V., Zetser, Yu., et al.: Aktivnie geofizicheskie raketnie experimenti s injectiey plasmennoy strui v ionosphere (Active geophysical rocket experiments with injection of plasma jet into ionosphere). DAN (Doklady Earth Sciences) 331, 486–489 (1993) (in Russian)Google Scholar
  2. 2.
    Gavrilov, B., Erlandson, R., et al.: Dynamics of a high energy plasma jet in space: in situ experiment and laboratory simulation. Adv. Space Res. 21(5), 773–776 (1998)ADSCrossRefGoogle Scholar
  3. 3.
    Gudzenko, L., Yakovlenko, C.: Plasmennie laseri. (Plasma Lasers) Atomizdat, Moscow (1978) (in Russian)Google Scholar
  4. 4.
    Sobelman, I., Vainshtein, L., Yukov, E.: Exitaion of Atoms and Broadening of Spectral Lines, 2nd edn. Springer, Berlin Heidelberg, New York (1995)CrossRefGoogle Scholar
  5. 5.
    Loseva, T., Golub, A. et al.: Nachalnaya stadiya razvitiya plasmennoy strui v AGRE. (Initial stage of plasma jet evolution). Dinamicheskie processi v geosferah (Dynamical Processes in Geospheres), pp. 102–110. GEOS, Moscow (2017) (in Russian)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Sadovsky Institute of Geospheres Dynamics RASMoscowRussia

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