Open AccessDetermination of the recovery heat flux at superfluid helium film boiling in different conditions
Author(s) -
Yu Yu Puzina,
A. P. Kryukov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1370/1/012018
Subject(s) - thermodynamics , superfluid helium 4 , heat flux , laplace transform , boiling , boiling point , nucleate boiling , mass flux , heat transfer , leidenfrost effect , hydrostatic pressure , helium , materials science , liquid helium , chemistry , mechanics , physics , mathematical analysis , mathematics , organic chemistry
The calculation of the recovery heat flux density is considered for different conditions to investigate heat mass transfer processes. System of equations is based on the methods of continuum mechanics and molecular kinetic theory. Pressure distribution in the liquid is determined by the hydrostatic difference. At the vapor-liquid interface the Laplace formula is used. The vapor pressure in the film is determined by the non-equilibrium effects in the vapor near the interface. Heat transfer in a liquid is described by the Gorter-Mellink semi-empirical theory. Experimental data on the boiling of superfluid helium under various conditions are interpreted based on the formulated mathematical model. For all cases in the considered range of parameters, the qualitative and in some cases quantitative agreement between the calculated and experimental values of the recovery heat flux were obtained.