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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN Imprimir: 1093-3611
ISSN On-line: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v14.i4.70
pages 373-378

ON ELECTRON ENERGY DEFECT IN IONIZATIONALLY UNSTABLE PLASMA

E. A D'Yakonova
A.F. Ioffe Physico-Technical Institute Russian Academy of Sciences, 194021 St. Petersburg, Russia
A. V. Erofeev
A.F. Ioffe Physico-Technical Institute Russian Academy of Sciences, 194021 St. Petersburg, Russia
T. A. Lapushkina
A.F. Ioffe Physico-Technical Institute Russian Academy of Sciences, 194021 St. Petersburg, Russia
R. V. Vasil'eva
A.F. Ioffe Physico-Technical Institute Russian Academy of Sciences, 194021 St. Petersburg, Russia

RESUMO

The development of ionizational (electrothermal) instability under moving two-temperature inert gas plasma in across magnetic field is investigated. The gas dynamic flow parameters, the local and average values of temperature and concentration, local conductivity for electron plasma component, basic integral characteristics of magnetohydrodynamic (MHD) channels were defined. The electron energy balance is brought such that the Joule heating power is equal to the rate of energy transfer to the heavy plasma component at the elastic collisions and the rate of energy transfer for ionization. This energy balance is conserved in a stable plasma and it is not conserved in unstable plasma. The defect of electron energy is about 1/3 or 1/2 from Joule heating energy, meaning large part of energy is lost in fluctuations.

Referências

  1. Nedospasov, A. V and Hait, V. D. , Bases of Physics of Processes in Devices with Low-Temperature Plasmas.

  2. Velikhov, E. P., Golubev, V S., and Dykhne, A. M. , Atomic Energy Review.

  3. Vasil'eva, R. V., Genkin, A. L., Goryachev, V L. , Low-Temperature Plasma of Inert Gases with Non-Equilibrium Ionization and MHD Generators.

  4. Erofeev, A. V., Vasil'eva, R. V, Zuev, A. D., Conf. on MHD Electrical Power Generation.

  5. Lapushkina, T. A., Vasil'eva, R. V, Erofeev, A. V, and Zuev, A. D. , Investigation of a Hall MHD channel with an ionization-unstable plasma of inert gases.

  6. Lapushkina, T. A., D'yakonova, E. A., and Vasil'eva, R. V. , Determination of fluctuations of the electron temperature and density in an ionization-unstable inert gas plasma in mag-netohydrodynamic channel.


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