The Low-Speed Characteristics of a 15-Percent Quasi-Elliptical Circulation Control Airfoil with Distributed Camber.

Abstract

The aerodynamic characteristics of a circulation control elliptic airfoil section with a 15-percent thickness-to-chord ratio were evaluated subsonically. The airfoil, designated NCCR1513-7559E, incorporates a high degree of nose camber and an increased leading edge radius in a profile designed for high subsonic speeds. Critical Mach numbers in excess of 0.7 were predicted analytically for several typical operating conditions. Lift coefficients up to 4.63 were produced at momentum coefficients of 0.22. Equivalent lift-to-drag ratios of approximately 40 were also produced at C(l)= 0.8. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1979
Accession Number
ADA084176

Entities

People

  • David W Taylor
  • Jane Abramson

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Boundaries
  • Boundary Layer
  • Boundary Layer Control
  • Compressible Flow
  • Dynamic Pressure
  • Efficiency
  • Experimental Data
  • Free Stream
  • Leading Edges
  • Mach Number
  • Pressure Distribution
  • Reynolds Number
  • Static Pressure
  • Trailing Edges
  • Two Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.