VISCOUS REGION OF TURBULENT BOUNDARY LAYER.

Abstract

The nature of mean and turbulent motion in the viscous sublayer of a thick boundary layer with zero pressure gradient was investigated. Measurements were made of the mean motion, two of the turbulent velocity components, the turbulent shear stress, and spectra of the longitudinal component of the velocity fluctuation. Traverses were made through approximately one-fifth of the boundary layer, which was approximately 32 inches thick. The boundary layer was developed along the floor of the wind tunnel test section for 85 feet. The turbulent shear stresses and the turbulence intensities were evaluated from a single rotated wire. A detailed account is given of the theory concerning the yawed wire operation. Included are corrections for the results from normal and yawed hot wires when operated in large mean velocity gradients and/or turbulence intensity gradients. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1967
Accession Number
AD0665393

Entities

People

  • Henry W. Tieleman

Organizations

  • Colorado State University

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Hot Wire
  • Intensity
  • Layers
  • Measurement
  • Pressure Gradients
  • Shear Stresses
  • Stresses
  • Turbulence
  • Turbulent Boundary Layer
  • Wind Tunnel Tests
  • Wind Tunnels
  • Wire

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Fluid Dynamics.