THE DESIGN AND TESTING OF AN ALL-LENS SCHLIEREN SYSTEM

Abstract

The subject for investigation was chosen because of the need for a schlieren system for the axi-symmetrical wind tunnel operated under Naval Ordnance Contract 16498, Task UTX-2-A, at the Defense Research Laboratory, The University of Texas. The system is required to have good sensitivity and relatively high magnification, yet remain compact and simple as possible. By the use of lenses the system is of the single pass type which gives a fairly high light intensity for photography even after the light has been monochromatized. A single pass system requires only a single path optic bench which can be readily adapted and easily adjusted to any wind tunnel installation. In contacting various wind tunnel installations throughout the United States, it was discovered that most of them used the conventional parabolic-mirror type schlieren system which is usually quite large and expensive. This lens type system is designed to be used with a wind tunnel with a small field of view, that is, a tunnel having a test section of small height and length. The system is by no means the best type but is usable and of fairly good quality.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1957
Accession Number
AD0656886

Entities

People

  • Ernest C. Vogt

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Flow
  • Cameras
  • Control Panels
  • Deflection
  • Equations
  • Flow
  • Fluid Flow
  • Images
  • Lamps
  • Light Sources
  • Mach Number
  • Photographs
  • Photography
  • Shock Waves
  • Static Pressure
  • Water Flow
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Image Processing and Computer Vision.
  • Systems Analysis and Design