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,   United States  47907
• Authors:
  • Walker, JDA
  • Abbott, D E
  • Scharnhorst, R K
• Publication Date: 1976-2

Media Info

• Pagination: 93 p.

Subject/Index Terms

• TRT Terms: Boundary layer; Boundary layer flow; Shear stress; Turbulence; Turbulent boundary layer; Two dimensional flow; Walls
• Old TRIS Terms: Wall shear stress
• Subject Areas: Design; Marine Transportation;

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