Vortex Dynamics and Separation Over Pitching Wings.

Abstract

This project, aimed at an extensive study of the unsteady vortex dynamics and separation of pitching wings. Significant accomplishments were made in the project. These included extensive documentation of the 2-D velocity and vorticity field around a pitching NACA 0015 wing at a Reynolds number of 150,000, and extensive surface pressure and velocity data in the 3-D flow over a pitching swept wing of the same profile. The velocity data were obtained using the technique of Particle Image Velocimetry (PIV). The data have been used to understand the physics of 2-D and 3-D vortex dynamics separation in unsteady flows. The data have been archived carefully and will be made available to any interested user. This Final Technical Report gives a very brief summary of the Project activities.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1995
Accession Number
ADA299484

Entities

People

  • B. R. Ramaprian

Organizations

  • Washington State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Cameras
  • Computational Fluid Dynamics
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Hydrodynamics
  • Photographs
  • Pressure Distribution
  • Pressure Measurement
  • Reynolds Number
  • Swept Wings
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Dynamics.
  • Technical Research and Report Writing.