Open AccessExperiments of superfluid helium flow in a channel with a monodisperse backfill
Author(s) -
Yu Yu Puzina,
A. P. Kryukov,
P V Korolyov,
I A Yachevskiy
Publication year - 2020
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 - 10.1088/1742-6596/1683/2/022017
Subject(s) - superfluid helium 4 , helium , mechanics , superfluidity , materials science , isotopes of helium , channel (broadcasting) , liquid helium , lambda point refrigerator , flow (mathematics) , dispersity , heat transfer , open channel flow , physics , condensed matter physics , atomic physics , telecommunications , computer science , polymer chemistry
The experimental data on the superfluid helium flow in a U-shaped channel filled with a monodisperse backfill at a certain length is considered in this paper. The entire channel is immersed in a volume of superfluid helium. A flat heater is located in one end of the channel. When the heat load is applied, a vapor plug is formed in the channel. The column of superfluid helium begins to fluctuate in size with a constant amplitude and frequency. On the basis of the video recording of experiments, the dependence of the coordinate of the interfacial surface on time was plotted, and a qualitative analysis of heat and mass transfer processes is performed.