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FLOW PATTERN TRANSITION OF LIQUID HELIUM IN THE ROTATING HELIUM POOL OF SUPERCONDUCTING GENERATORS. 1. VISUAL EXPERIMENT.

[In Japanese. / En japonais.]

Author(s) : YOSHIMURA M., NAGAO M.

Type of article: Article

Summary

IT IS IMPORTANT FOR SUPERCONDUCTING ROTORS TO 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 ROTORS 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 RESULTS OF A VISUAL EXPERIMENT USING WATER, R113 AND SILICONE OIL ARE PRESENTED.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1988-2198
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 23 - n. 1
  • Publication date: 1988
  • Document available for consultation in the library of the IIR headquarters only.

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