Experimental Measurements of the Turbulent Boundary Layer on a Yawed, Spinning Slender Body

Abstract

Experimental measurements of the tripped turbulent boundary layer profile characteristics on a yawed, spinning tangent-ogive-cylinder model are described. The profile measurements were made using a flattened total head probe at 30 deg increments completely about the azimuthal plane for three longitudinal stations at M = 3, alpha = 4 deg omega = 0 and 10,000 RPM. Wall static pressure measurements were obtained in order to compute velocity profiles from the measured total head pressure. The data have been analyzed according to law of the wall/law of the wake concepts using a least squares fitting technique. The effect of azimuthal position is revealed in the growth of the wake parameter by a factor of two from the wind to the lee-side. A small but consistent effect of spin is also apparent.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1977
Accession Number
ADA035269

Entities

People

  • James E. Danberg
  • Walter B. Sturek

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Coordinate Systems
  • Data Reduction
  • Flow
  • Flow Visualization
  • Fluid Dynamics
  • Geometric Forms
  • Geometry
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Static Pressure
  • Test Facilities
  • Three Dimensional
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Mechanics and Fluid Dynamics.