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Theory of cooled electric probes in a dense plasma. Influence of thermal diffusion

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Abstract

The problem of an electric probe in the shape of a sphere in a weakly ionized three-component plasma at rest is studied. It is assumed that the probe diameter is appreciably larger than the mean free path of the charged particles and that the temperature of the probe surface differs from the temperature of the undisturbed plasma. The contribution of thermal-diffusion mass transport is taken into account in the expressions for the densities of the electric currents of the components. A new numerical method is developed to obtain a solution of the problem in a wide range of the determining parameters. The current-voltage characteristics are constructed. The influence of the probe temperature, the transport coefficients, and other parameters on the current-voltage characteristics is analyzed.

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Literature cited

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Authors and Affiliations

  1. Moscow

    I. L. Pankrat'eva & V. A. Polyanskii

Authors
  1. I. L. Pankrat'eva
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  2. V. A. Polyanskii
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 2, pp. 103–112, March–April, 1979.

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Pankrat'eva, I.L., Polyanskii, V.A. Theory of cooled electric probes in a dense plasma. Influence of thermal diffusion. Fluid Dyn 14, 246–253 (1979). https://doi.org/10.1007/BF01051667

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  • DOI: https://doi.org/10.1007/BF01051667

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