An Analytical Study of the Effects of Jets Located More Than One Jet Diameter Above a Wing at Subsonic Speeds

Abstract

A procedure has been developed to calculate the effects of blowing two jets over a swept tapered wing at low subsonic speeds. The algorithm used is based on a vortex lattice representation of the wing lifting surface and a line sink-source distribution to simulate the effects of the jet exhaust on the wing lift and drag. The method is limited to those cases where the jet exhaust does not intersect or wash the wing. The predictions of this relatively simple procedure are in remarkably good agreement with experimentally measured interference lift and interference induced drag. Upper-surface blowing, Aerodynamics, Interference lift, Interference drag, Swept wings, Jet effects, Tapered wings, Subsonic flow.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1974
Accession Number
ADA280151

Entities

People

  • Lawrence E. Putnam

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aircrafts
  • Aspect Ratio
  • Cartesian Coordinates
  • Computer Programs
  • Coordinate Systems
  • Dynamic Pressure
  • Experimental Data
  • Flow
  • Free Stream
  • Leading Edges
  • Lifting Surfaces
  • Load Distribution
  • Mach Number
  • Near Field
  • Static Pressure
  • Trailing Vortices

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.