Numerical study of cavitating flow characteristics of liquid helium in a pipe

Jun Ishimoto, Kenjiro Kamijo

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The fundamental characteristics of the two-dimensional cavitating flow of liquid helium in a vertical pipe near the lambda point are numerically investigated to realize the further development and high performance of new cryogenic superfluid cooling systems. It is found that the phase transition of the normal fluid to the superfluid and the generation of superfluid counterflow against normal fluid flow based on the thermomechanical effect is conspicuous in the large gas phase volume fraction region where the liquid to gas phase change with cavitation actively occurs. Furthermore, it is clarified that the mechanism of the He I to He II phase transition caused by the temperature decrease is due to the deprivation of latent heat for vaporization from the liquid phase.

Original languageEnglish
Pages (from-to)149-163
Number of pages15
JournalInternational Journal of Heat and Mass Transfer
Volume47
Issue number1
DOIs
Publication statusPublished - 2004 Jan
Externally publishedYes

Keywords

  • Cavitation
  • Cryogenics
  • Liquid helium
  • Multiphase flow
  • Pipe flow

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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