Thermal turbulence in cryogenic helium gas

J. J. Niemela, K. R. Sreenivasan

Research output: Contribution to journalConference articlepeer-review


Several recent experiments have utilized cryogenic helium gas in order to generate high levels of thermal turbulence within a layer of gas heated from below. As the principal control parameter for the fluid turbulence depends strongly on the layer height, this has typically been made as large as feasible, while the lateral dimensions have been kept of the same dimension or smaller for practical reasons. While we continue to learn many important things from small aspect ratio experiments, implications and limitations of this lateral confinement are discussed, given our current understanding of the nature of large scale recirculating flows in developed turbulent convection.

Original languageEnglish (US)
Pages (from-to)429-430
Number of pages2
JournalPhysica B: Condensed Matter
StatePublished - May 2003
EventProceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: Aug 20 2002Aug 27 2002


  • Heat transfer
  • Large scale circulation
  • Turbulent convection

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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