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  • A flow source has been developed to generate turbulent superfluid flows in channels equipped for detection of quantised vortices. The source consists of a motor driven low temperature compressible volume capable of pushing or sucking superfluid He-4 into a flow channel. Detection is based on the attenuation of second sound caused by the presence of quantised vortex lines in the turbulent flow. In this paper we present the technical details of the apparatus, along with some raw data obtained during the first successful low temperature test. The test has been performed using the source to generate a flow into a channel whose ends have been blocked by superleaks to allow for the inflow and outflow of the superfluid component of helium only. This technique enables to determine the a real density of quantised vortex lines in the temperature range 1.3 to 2.1 K, with well controlled flow velocities between 0.01 and 30 cm/s.
  • A flow source has been developed to generate turbulent superfluid flows in channels equipped for detection of quantised vortices. The source consists of a motor driven low temperature compressible volume capable of pushing or sucking superfluid He-4 into a flow channel. Detection is based on the attenuation of second sound caused by the presence of quantised vortex lines in the turbulent flow. In this paper we present the technical details of the apparatus, along with some raw data obtained during the first successful low temperature test. The test has been performed using the source to generate a flow into a channel whose ends have been blocked by superleaks to allow for the inflow and outflow of the superfluid component of helium only. This technique enables to determine the a real density of quantised vortex lines in the temperature range 1.3 to 2.1 K, with well controlled flow velocities between 0.01 and 30 cm/s. (en)
Title
  • A flow source for the study of quantum turbulence in superfluid 4He
  • A flow source for the study of quantum turbulence in superfluid 4He (en)
skos:prefLabel
  • A flow source for the study of quantum turbulence in superfluid 4He
  • A flow source for the study of quantum turbulence in superfluid 4He (en)
skos:notation
  • RIV/68378271:_____/12:00399266!RIV14-GA0-68378271
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GA202/08/0276)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 120203
http://linked.open...ai/riv/idVysledku
  • RIV/68378271:_____/12:00399266
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • superfluidity; 4He (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [AE2A189AEDED]
http://linked.open...v/mistoKonaniAkce
  • Jicin
http://linked.open...i/riv/mistoVydani
  • Les Ulis Cedex A
http://linked.open...i/riv/nazevZdroje
  • EFM11 – Experimental Fluid Mechanics 2011
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Skrbek, L.
  • Šebek, Josef
  • Babuin, Simone
  • Rotter, M.
  • Stammeier, M.
http://linked.open...vavai/riv/typAkce
http://linked.open...ain/vavai/riv/wos
  • 000304449600104
http://linked.open.../riv/zahajeniAkce
issn
  • 2100-014X
number of pages
http://bibframe.org/vocab/doi
  • 10.1051/epjconf/20122502001
http://purl.org/ne...btex#hasPublisher
  • EDP Sciences
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