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Various Film Boiling States in He II at Hydrostatic Pressures from Saturated Vapor Pressure to 1 ATM

  • M. Murakami
  • M. Yamaguchi
  • N. Yanase
  • H. Inaba
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)

Abstract

The characteristic feature of several film boiling states in He II is experimentally investigated by measuring pressure oscillation in a wide range of hydrostatic pressure from saturated vapor pressure to above the lambda pressure. There appear two kinds of film boiling states in He II under nearly saturated vapor pressure condition depending on the magnitude of the hydrostatic pressure. Above the lambda pressure, however, a film boiling state being different from noisy state appears in which much weaker but higher frequency audible noise is generated. The transition from one boiling state to another is clearly seen from the shift in the predominant frequency of pressure oscillation. It is found that noisy boiling does not occur in subcooled He II.

Keywords

Hydrostatic Pressure Saturated Vapor Pressure High Hydrostatic Pressure Pressure Oscillation Superfluid Helium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • M. Murakami
    • 1
  • M. Yamaguchi
    • 1
  • N. Yanase
    • 1
  • H. Inaba
    • 1
  1. 1.Institute of Engineering MechanicsUniversity of TsukubaTsukuba, 305Japan

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