Lift Enhancement Using Close-Coupled Canard/Wing Vortex Interaction

Abstract

A wind-tunnel study to find the lift and drag characteristics of a low-aspect-ratio wing/body configuration from an angle of attack (AOA) of -8 to 50 degrees was conducted. A further study to find the comparative lift enhancement using the same wing/body with a close-coupled canard for wing/body angles of attack of 10, 22, 34, 40, and 48 degrees and canard deflection angles from -25 to 25 degrees was carried out. It was found that a properly-located canard enhanced the lift at all tested angles of attack, compared to the baseline wing/body configuration results. The lift enhancement was maximized in the post-stall regimes, reaching values up to 34%. A small improvement in lift- to-drag ratio was noted at all tested angles above 10 degrees angle of attack.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA245152

Entities

People

  • John M. Kersh Jr

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Configurations
  • Aeronautical Engineering
  • Aeronautics
  • Aircrafts
  • Airfoils
  • Aspect Ratio
  • Boundary Layer
  • Classification
  • Control Surfaces
  • Control Systems
  • Data Acquisition
  • Dynamic Pressure
  • Electric Motors
  • High Angles
  • Measurement
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.