Active Control of Unsteady and Separated Flow Structures

Abstract

The objective of the research program was to formulate an active flow control method to change the vorticity and convection characteristics of a modelled dynamic stall vortex. Flow visualization, surface pressure and laser doppler anemometer measurements were obtained. A potential flow model was developed as a state estimator and several flow control strategies were examined. Keywords: Aerodynamic stability; Unsteady flows; Flow control.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1989
Accession Number
ADA212109

Entities

People

  • Dennis J. Koga
  • John K. Eaton

Organizations

  • Stanford University

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Air Force
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Control
  • Control Systems
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Hypervelocity Flow
  • Measurement
  • Pressure Measurement
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Directed Energy