ON THE NOMINALLY STEADY TWO-DIMENSIONAL TIME-MEAN TURBULENT BOUNDARY LAYER

The flow in the wall layer of a turbulent boundary layer, which is two-dimensional and steady in the time-mean sense, is investigated. The theory is motivated by recent experimental evidence that reveals that the wall layer is a region which is laminar-like in character and which is dominated by the bursting phenomenon. A solution is obtained for the time dependent flow in the wall layer which is valid during the period between bursts; from this a mean profile is defined. It is demonstrated that the wall region flow is not universal but exhibits a strong dependence on pressure gradient. The theory is compared directly with experimental data and the agreement is very satisfactory. (Author)

  • Corporate Authors:

    Purdue University

    Computational Fluid Mechanics Group
    Lafayette, Indiana,   USA  47907
  • Authors:
    • Walker, JDA
    • Abbott, D E
    • Scharnhorst, R K
  • Publication Date: 1976-2

Media Info

  • Pagination: 93 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00138551
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CFMTR-76-1 Intrm Rpt., AFOSR-TR-76-0489
  • Contract Numbers: AF-AGOSR-2707-74
  • Files: TRIS
  • Created Date: Sep 4 1976 12:00AM