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BOILING PHENOMENA IN PRESSURIZED HELIUM II CONFINED TO A CHANNEL.

Author(s) : BREON S. R., SCIVER S. W. van

Type of article: Article

Summary

RESULTS FROM AN EXPERIMENT TO STUDY BOILING PHENOMENA IN A CHANNEL CONTAINING PRESSURIZED HELIUM II ARE PRESENTED AS A FUNCTION OF TEMPERATURE, PRESSURE AND ORIENTATION WITH RESPECT TO GRAVITY. VISUAL DATA ARE COMBINED WITH TEMPERATURE AND PRESSURE MEASUREMENTS. RESULTS ARE PRESENTED IN THE FORM OF HEAT TRANSFER REGIME MAPS, TEMPERATURE AND PRESSURE TRACES DURING BOILING. ONE UNEXPECTED RESULT IS THE OBSERVATION OF A MACROSCOPIC REGION OF HELIUM I WITH HELIUM II BELOW AND VAPOUR ABOVE. ANOTHER UNANTICIPATED RESULT IS THAT THE BOILING PHENOMENA ARE OFTEN CHARACTERIZED BY THE PERIODIC PRODUCTION, GROWTH AND COLLAPSE OF VAPOUR EVEN THOUGHTHE HEAT INPUT IS CONSTANT.

Details

  • Original title: BOILING PHENOMENA IN PRESSURIZED HELIUM II CONFINED TO A CHANNEL.
  • Record ID : 1987-1649
  • Languages: English
  • Source: Cryogenics - vol. 26 - n. 12
  • Publication date: 1986

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