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Experimental study of the viscosity of lithium vapor at high temperatures

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Abstract

The viscosity of lithium vapor was measured at temperatures from 1600 to 2000 K and pressures from 0.02 to 0.1 MPa with an experimental setup consisting of a closed circuit with a short annular channel used as a measuring element. The accuracy of the data obtained was estimated to be 3–4%. The characteristic features of the designed apparatus are the following: a high stability of the pressure difference within the viscometer during experiment, the absence of condensate accumulation out of the flowmeter, and a sufficiently large flowmeter volume. Since the length of the measuring section is short, the hydrodynamics of the gas flow through an annular channel were studied carefully. This enabled us to introduce the necesary corrections in the working equation. The results obtained are compared with available experimental data and the results of theoretical calculations.

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Authors and Affiliations

  1. Moscow Aviation Institute, Moscow, USSR

    I. F. Stepanenko, N. I. Sidorov, Y. V. Tarlakov & V. S. Yargin

Authors
  1. I. F. Stepanenko
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  2. N. I. Sidorov
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  3. Y. V. Tarlakov
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  4. V. S. Yargin
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Additional information

Paper submitted to the Ninth Symposium on Thermophysical Properties, June 24–27, 1985, Boulder, Colorado, U.S.A.

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Stepanenko, I.F., Sidorov, N.I., Tarlakov, Y.V. et al. Experimental study of the viscosity of lithium vapor at high temperatures. Int J Thermophys 7, 829–835 (1986). https://doi.org/10.1007/BF00503840

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  • DOI: https://doi.org/10.1007/BF00503840

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