SIMPLE METHODS AND INSTRUMENTATION FOR VERY SHORT EXPOSURE, HIGH REPETITION RATE KINEMATOGRAPHY IN CONJUNCTION WITH FLUID ATOMIZATION STUDIES

Abstract

The high voltage discharge of a pulsed light source with coaxial capacitor and extremely low inductance (Fischer-Nanolite) was employed successfully for ultra-short-time exposure of rapidly changing phenomena in the boundary layer of two-phase-flow. Design and operation of the electronic trigger-unit controlling high voltage discharge and shot series limitation are described. The high speed cameras and the lighting device developed in this way were used to investigate the atomization of liquids. In order to study the disintegration itself it is necessary to get distinct exposures of particles in the order of some hundredth of a millimeter and velocities of more than one hundred meters/second. A simple calculation indicates that exposure times in the nanosecond range are required.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1965
Accession Number
AD0623569

Entities

People

  • A. Fritzsche
  • F. N. Scheubel
  • H. Wendt

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Camera Controls
  • Cameras
  • Commercial Equipment
  • Frequency
  • Generators
  • High Voltage
  • Light Sources
  • Mixing
  • Photographic Materials
  • Photographs
  • Photography
  • Physical Properties
  • Power Supplies
  • Repetition Rate
  • Surface Tension

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Electrical Engineering
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Microelectronics