A Comment on the Origin of Endwall Interference in Wind-Tunnel Tests of Aerofoils.

Abstract

Tests have been made recently at ONERA on the interference effects arising from the presence of the boundary layers on the walls at the ends of an aerofoil spanning the working section of a wind tunnel. The tests revealed a behaviour different from that predicted by the theory of Preston. A qualitative assessment of the problem is made and it is suggested that the interference is better explained in terms of changes in the displacement thickness of the boundary layers on the tunnel walls than in terms of induced effects from trailing vorticity. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1979
Accession Number
ADA078333

Entities

People

  • J. H. B. Smith
  • K. G. Winter

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Airfoils
  • Angle Of Incidence
  • Aspect Ratio
  • Boundaries
  • Boundary Layer
  • Cartesian Coordinates
  • Flow
  • Flow Fields
  • Flow Visualization
  • Layers
  • Leading Edges
  • Mach Number
  • Pressure Gradients
  • Reynolds Number
  • Test Facilities
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Fluid Dynamics.
  • Theoretical Analysis.