Recovery Heat Flux at Superfluid Helium Film Boiling on the Cylindrical Heaters in Different Conditions

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Recovery Heat Flux at Superfluid Helium Film Boiling on the Cylindrical Heaters in Different Conditions

July 3, 2021 Physical Science 0

A set of two equations is presented for determining the recovery heat flow density. The hydrostatic difference determines the pressure distribution in the liquid; the Laplace pressure jump on the vapor-liquid interface is taken into account in one of them; and non-equilibrium factors in the vapour film are taken into account in another. This equation was derived using the correct correlation for the normal component of the momentum flux density tensor obtained using the two-fluid model. The Gorter-Mellink semi-empirical theory describes heat transmission in helium II in the second equation. The effects of various simplifications and special instances are investigated. The experimental data on superfluid helium boiling under various conditions is analysed using the mathematical model as a foundation. There is a good deal of consistency between the computed and experimental results.

Author (s) Details

Yu Yu Puzina
Department of Low Temperature National Research University, Moscow Power Engineering Institute, 14 Krasno kazarmennaya, Moscow, 111250 Russia.

A. P. Kryukov
Department of Low Temperature National Research University, Moscow Power Engineering Institute, 14 Krasno kazarmennaya, Moscow, 111250 Russia.

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