A Quantitative Study of Unsteady Compressible Flow on an Oscillating Airfoil (Preprint)

Abstract

Detailed interferometric measurements of the flow near the leading edge of an oscillating airfoil offer the first detailed experimental quantification of the locally compressible flow field that surrounds an oscillating airfoil at moderate subsonic Mach numbers. Interferograms obtained by a specially adapted real-time point-diffraction interferometry technique have revealed significant characteristics of this complex, and very rapidly varying, locally supersonic flow. Instantaneous pressure distributions determined from these interferograms document the effect of unsteadiness on the leading-edge flow environment.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1991
Accession Number
ADA244572

Entities

People

  • L. W. Carr
  • Muguru S. Chandrasekhara
  • N. J. Brock

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Diffraction
  • Flow Fields
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Geometric Forms
  • Geometry
  • Hydrodynamics
  • Layers
  • Mach Number
  • Mechanics
  • Pressure Distribution
  • Pressure Gradients
  • Stratified Fluids
  • Supersonic Flow

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow