EXPERIMENTS ON INTERNAL INTERMITTENCY AND FINE-STRUCTURE DISTRIBUTION FUNCTIONS IN FULLY TURBULENT FLUIDS

Spatial intermittency in the velocity field fine-structure of fully turbulent flow regions, first observed by Batchelor and Townsend (1949), is studied further in grid-generated nearly isotropic turbulence and on the axis of a round jet. At large enough Reynolds numbers, appropriately filtered hot-wire anemometer signals appear intermittent as the turbulent patterns are convected past the hot wire by the mean flow. Measurements show that there is a decrease in the relative fluid volume (equal to the 'intermittency factor') occupied by fine-structure of given size as the turbulence Reynolds number is increased. (Author)

  • Supplemental Notes:
    • Revision of report dated 20 August 1970. Also available in Journal of Fluid Mechanics, volume 50 part-2 pages 285-319,1971.
  • Corporate Authors:

    Johns Hopkins University, Baltimore

    Baltimore, MD  USA  21218
  • Authors:
    • Kuo, AYS
    • Corrsin, S
  • Publication Date: 1971-3-22

Media Info

  • Pagination: 36 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00033635
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Files: TRIS
  • Created Date: Aug 25 1972 12:00AM