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

Author(s) : ISHIMOTO J., KAMIJO K.

Type of article: Article

Summary

The fundamental characteristics of the two-dimensional cavitating flow of liquid helium in a vertical pipe near the lambda point are numerically investigated in order to achieve further development and high performance of new cryogenic superfluid cooling systems. It was 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, the mechanism of the He I to He II phase transition caused by the temperature decrease was demonstrated to be due to the deprivation of latent heat for vaporization from the liquid phase.

Details

  • Original title: Numerical study of the cavitating flow characteristics of liquid helium in a pipe.
  • Record ID : 2004-0479
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 47 - n. 1
  • Publication date: 2004/01

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