Thermal turbulence in cryogenic helium gas

J. J. Niemela, K. R. Sreenivasan

Research output: Contribution to journalArticle

Abstract

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
Volume329-333
DOIs
StatePublished - May 2003

Fingerprint

Helium
Cryogenics
cryogenics
Turbulence
Gases
turbulence
helium
gases
aspect ratio
Aspect ratio
convection
Experiments
Fluids
fluids
Hot Temperature
Convection

Keywords

  • Heat transfer
  • Large scale circulation
  • Turbulent convection

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Thermal turbulence in cryogenic helium gas. / Niemela, J. J.; Sreenivasan, K. R.

In: Physica B: Condensed Matter, Vol. 329-333, 05.2003, p. 429-430.

Research output: Contribution to journalArticle

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