Some models of heat transfer at film boiling of superfluid helium near lambda -point in microgravity

The stationary process of heat transfer at film boiling of superfluid helium (He II) on the cylindrical heater in microgravity is investigated. The two models for the description of this process are developed. Herewith, the molecular-kinetic method is applied to describe the transport phenomena on t...

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Bibliographic Details
Published in:Journal of low temperature physics 2000, Vol.119 (3), p.413-420
Main Authors: Khurtin, P V, Kryukov, A P
Format: Article
Language:English
Subjects:
Boiling liquids
Heat flux
Heat transfer
Interfaces (materials)
Mathematical models
Microgravity processing
Molecular dynamics
Vapors
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Summary:The stationary process of heat transfer at film boiling of superfluid helium (He II) on the cylindrical heater in microgravity is investigated. The two models for the description of this process are developed. Herewith, the molecular-kinetic method is applied to describe the transport phenomena on the interface: HeII-vapor. Moreover, steady heat transfer in superfluid helium before onset of film boiling is considered. The dependencies of the vapor film parameters on heat flux leaving the heater surface are obtained for case of this heat flux increase from zero to peak heat flux and the subsequent decrease to recovery heat flux.
ISSN:0022-2291
DOI:10.1023/a:1004630222359