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TURBULENT COUNTERFLOW OF HELIUM II INVESTIGATED WITH A SIXFOLD HELMHOLTZ RESONATOR FOR SECOND SOUND.

Author(s) : GOEJE M. P. de, BEELEN H. van

Type of article: Article

Summary

THE SECOND SOUND RESONANCES OF A SIXFOLD HELMHOLTZ OSCILLATOR HAVE BEEN EMPLOYED TO PROBE THE SUPERFLUID TURBULENCE OF STEADY THERMAL COUNTERFLOW IN HELIUM 4 ESTABLISHED INSIDE TUBES. IT WAS DEMONSTRATED THAT FOR LOW FREQUENCY (BELOW 150 HERTZ) SECOND SOUND WAVES, THE PROCESS OF MOMENTUM TRANSFER BETWEEN SUPERFLUID AND NORMAL FLUID AT THE SITE OF THE INDIVIDUAL QUANTIZED VORTICES IS THE SAME AS FOR STEADY FLOW. THE RESULTS ARE VERY WELL DESCRIBED BY THE WELL-KNOWN VINEN THEORY OF SUPERFLUID TURBULENCE.

Details

  • Original title: TURBULENT COUNTERFLOW OF HELIUM II INVESTIGATED WITH A SIXFOLD HELMHOLTZ RESONATOR FOR SECOND SOUND.
  • Record ID : 1987-0003
  • Languages: English
  • Source: Physica, B - vol. 133
  • Publication date: 1985

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