Experimental Investigation of Wake Velocity Fluctuations Behind Stalled Wings at Reynolds Numbers up to 4.8 Million.

Abstract

A wind tunnel investigation was made of transient wake velocities behind three stalled wings with NACA 0012 airfoils and spans equal to test section width up to a maximum Reynolds number of 4.8 million. Two wings had constant chords of 6 inches and 3 inches and one was tapered with a root chord of 12 inches and a tip chord of 6 inches. Anemometer time-history data were recorded on tape for angles of attack of 16.2 degrees, 21.1 degrees, 25.8 degrees and 30.3 degrees, and were used to evaluate wake geometry, frequency and mean and perturbation velocities for the constant chord wings. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1973
Accession Number
AD0763468

Entities

People

  • Robert F. Smiley

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Anemometers
  • Atmospheric Motion
  • Biological Phenomena
  • Ecological And Environmental Phenomena
  • Ecological And Environmental Processes
  • Frequency
  • Geometry
  • Mathematics
  • Motion
  • Perturbations
  • Physical Properties
  • Reynolds Number
  • Wind
  • Wind Tunnels

Fields of Study

  • Physics

Readers

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