Development of an Integrated System for Flow Visualization in Air Using Neutrally-Buoyant Rubbles

Abstract

A new technique for flow visualization in air is presented. This technique employs small, neutrally-buoyant bubbles to map out particle paths and measure velocities, even in turbulent aerodynamic flows. An integrated visualization system was developed, comprised of a unique means to generate the bubbles, a compact illumination unit and specialized photography. Three test programs were carried out in subsonic wind tunnels to assess the system performance. The tests are discussed and an evaluation is given. A number of photographs illustrate the various facets of the technique.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0756691

Entities

People

  • D. E. Ordway
  • P. Tan
  • R. C. Stowell
  • R. W. Hale

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Cameras
  • Computational Fluid Dynamics
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hydrodynamics
  • Light Sources
  • Measurement
  • Mechanical Properties
  • Photographic Materials
  • Photographs
  • Photography
  • Steady Flow
  • Turbulent Mixing
  • Two Dimensional

Readers

  • Database Systems and Applications
  • Fluid Dynamics.
  • Optical Physics and Photonics.