Self-sustained large-scale flow in turbulent cryogenic convection

J. J. Niemela, L. Skrbek, K. R. Sreenivasan, R. J. Donnelly

Research output: Contribution to journalArticlepeer-review

Abstract

Turbulent convection is studied in a cell filled with cryogenic helium gas. At high Rayleigh numbers a large-scale circulation persists and has a size comparable to the container. Over a wide range of time scales greater than its characteristic turnover time, this mean flow exhibits occasional and irregular reversals of direction without a change in magnitude. We study this feature in an apparatus of aspect ratio unity, in which the highest attainable Rayleigh number is about 1016.

Original languageEnglish (US)
Pages (from-to)297-302
Number of pages6
JournalJournal of Low Temperature Physics
Volume126
Issue number1-2
DOIs
StatePublished - 2002

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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