An Experimental Study of Dynamic Stall on Advanced Airfoil Sections. Volume 1. Summary of the Experiment.

Abstract

The static and dynamic characteristics of seven helicopter sections and a fixed-wing supercritical airfoil were investigated over a wide range of nominally two-dimensional flow conditions, at Mach numbers up to 0.30 and Reynolds numbers up to 4x10 to the 6th power. Details of the experiment, estimates of measurement accuracy, and test conditions are described in this volume. The results of the experiment show important differences between airfoils, which would otherwise tend to be masked by differences in wind tunnels, particularly in steady cases. All of the airfoils tested provide significant advantages over the conventional NACA 0012 profile. In general, however, the parameters of the unsteady motion appear to be more important than airfoil shape in determining the dynamic-stall airloads.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1982
Accession Number
ADA119827

Entities

People

  • K. W. Mcalister
  • L. W. Carr
  • S. L. Pucci
  • W. J. Mccroskey

Organizations

  • Ames Research Center

Tags

Communities of Interest

  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Boundary Layer
  • Boundary Layer Trips
  • Computational Fluid Dynamics
  • Computational Science
  • Data Analysis
  • Databases
  • Dynamic Pressure
  • Flow Visualization
  • Mach Number
  • Measurement
  • Plastic Explosives
  • Pressure Distribution
  • Pressure Measurement
  • Pressure Transducers
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerodynamics/Aeronautics.