Preliminary Results of a Study of Unsteady Airfoil Surface Pressures and Turbulent Boundary Layers

Abstract

It is shown that aerodynamic interference can produce unsteady flow over a fixed airfoil up to reduced frequencies of 6.4. The resulting pressure distributions are well behaved, repeatable and, within limits, predictable. Further it is shown that the resulting boundary layer velocity profile can be measured with the same precision as in the steady flow.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1980
Accession Number
ADA097560

Entities

People

  • Eugene E. Covert
  • Peter F. Lorber

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aeronautics
  • Boundaries
  • Boundary Layer
  • Flow
  • Frequency
  • Friction
  • Hot Wire
  • Instrumentation
  • Layers
  • Measurement
  • Phase Shift
  • Plastic Explosives
  • Pressure Distribution
  • Trailing Edges
  • Transducers
  • Unsteady Flow
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.