TURBULENT BOUNDARY LAYERS IN PRESSURE GRADIENTS: A SURVEY LECTURE PREPARED FOR THE 1968 AFOSR-IFP-STANFORD CONFERENCE ON COMPUTATION OF TURBULENT BOUNDARY LAYERS,

Abstract

Experimental data for more than forty different turbulent boundary-layer flows are tested for consistency with the wall-wake description of the mean-velocity profile. Values for several important profile parameters are obtained by means of a carefully conducted fitting process and the results are tabulated. Effects of pressure gradient are considered, but effects of roughness, mass transfer, three-dimensionality, compressibility, etc. are not. The wall-wake description is found to be quite adequate except for a few cases of flows recovering from strong disturbances. Some common and uncommon problems with instrumentation and experimental technique are documented, and the various flows are ordered according to their probable value for testing the accuracy of present or future analytical methods. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1969
Accession Number
AD0697755

Entities

People

  • Donald E. Coles

Organizations

  • RAND Corporation

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Consistency
  • Experimental Data
  • Flow
  • Instrumentation
  • Layers
  • Mass Transfer
  • Pressure Gradients
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Regression Analysis.
  • Systems Analysis and Design