Theoretical and Experimental Investigations of Vortex Lift Control by Spanwise Blowing. Volume 2. Three-Dimensional Theory for Vortex-Lift Augmentation

Abstract

A theoretical description is presented on the experimentally observed phenomenon of wing leading-edge vortex lift control by spanwise mass injection. The vortex and jet initial source/sink strengths and locations are established by a conformal mapping solution, and used as starting conditions for an iterative vortex-lattice simulation. The spanwise jet is shown to augment the stability of a vortex which forms at high angles-of-attack in the leading-edge region where wings of moderate-to-high aspect ratio otherwise exhibit fully turbulent separation. Definitive results are obtained on wing lift and corresponding pressure distributions for comparison with the test data presented in Volume I.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1973
Accession Number
AD0771304

Entities

People

  • Charles J. Dixon
  • Jerome G. Theisen
  • Roy M. Scruggs

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Mechanical Properties
  • Physics Laboratories
  • Pressure Distribution
  • Reynolds Number
  • Stratified Fluids
  • Swept Wings
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.