Characterization and Control of Vortex Breakdown over a Delta Wing at High Angles of Attack

Abstract

Demands for more maneuverable and stealthy air vehicles have encouraged the development of new control concepts for separated flows. The goal of this research is the control of leading-edge vortex breakdown by open-loop, along-the-core blowing near the apex of a delta wing to improve lift and maneuverability at high angles of attack. Control is dependent on the knowledge of and the ability to detect principle characteristics of the phenomena. Therefore, an experimental study of a 700 delta wing was accomplished to better understand the physical properties of the vortical flow and the vortex breakdown phenomena. Multiple experimental methods were used to characterize the flow field and its influence on the model's surfaces as well as to identify parameters for closed-loop feedback control.

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Document Details

Document Type
Technical Report
Publication Date
Aug 08, 2000
Accession Number
ADA381005

Entities

People

  • Anthony M. Mitchell

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aircrafts
  • Birds
  • Boundary Layer
  • Computational Fluid Dynamics
  • Delta Wings
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hydrodynamics
  • Mechanical Properties
  • Physics Laboratories
  • Three Dimensional
  • Turbulent Mixing
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Robotics and Automation.