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FLOW PATTERN TRANSITION OF LIQUID HELIUM IN THE ROTATING HELIUM POOL OF SUPERCONDUCTING GENERATORS. 2. EXPERIMENT USING LIQUID HELIUM.

[In Japanese. / En japonais.]

Author(s) : YOSHIMURA H.

Type of article: Article

Summary

IT IS IMPORTANT THAT ROTORS OF SUPERCONDUCTING GENERATORS MAINTAIN A STABLE FLOW PATTERN OF LIQUID HELIUM TO PREVENT AN ACCIDENTAL TRANSITION OF SUPERCONDUCTING FIELD WINDINGS INTO THE NORMAL STATE. LIQUID HELIUM WITHIN THE ROTATING HELIUM POOL OF SUPERCONDUCTING GENERATORS HAS 2 MAJOR FLOW PATTERNS. ONE IS A GRAVITY-DOMINANT FLOW PATTERN AND THE OTHER IS A CENTRIFUGAL-FORCE-DOMINANT FLOW PATTERN. THE FORMER HAS A FLAT HORIZONTAL SURFACE OF A LIQUID, AND THE LATTER HAS A CYLINDRICAL ONE. THE PAPER DESCRIBES THE TRANSITION PHENOMENA BETWEEN THESE 2 FLOW PATTERNS. THE PAPER AT FIRST DESCRIBES EXPERIMENTAL DATA OF LIQUID HELIUM OBTAINED USING A ROTATING HELIUM POOL, AND THEN COMPARES THESE EXPERIMENTAL DATA WITH THE RESULTS OF A VISUAL EXPERIMENT.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1991-0515
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 24 - n. 1
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

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