The processes of heat and mass transfer occurring in the course of vapor fi lm collapse on the surface of a wire heater immersed in a volume of superfluid helium are analyzed. Application of the results of a molecular-kinetic analysis for calculating the intensity of vapor condensation on the interphase surface allows one to obtain the needed relation for calculating the motion of the interphase surface to be used in turn in solving the Rayleigh equation with account for surface tension. The calculation results at a different level of microgravitation are compared with experimental data. An analysis of the influence of various constituents of the pressure difference in the fluid on the speed and time of vapor fi lm collapse is carried out.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 92, No. 6, pp. 2630–2635, November–December, 2019.
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Puzina, Y.Y., Kryukov, A.P. Influence of Microgravitation on Vapor Film Collapse Near a Wire Immersed in Superfluid Helium. J Eng Phys Thermophy 92, 1582–1587 (2019). https://doi.org/10.1007/s10891-019-02077-4
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DOI: https://doi.org/10.1007/s10891-019-02077-4