Laser Optical Measurement Methods for Aero Engine Research and Development.

Abstract

In recent years many optical measuring methods, most using lasers, for determining flow velocity (with turbulence and fluctuations), temperature and species concentration have been studied. The main advantage is that the flow is not disturbed. They are of great value for research and development on engines and components and for the understanding of fundamental flow processes. The proposed lecture series will inform propulsion specialists of the techniques that are currently available, how to use them and their limitations. It will review experience to date in practical applications. Laser-velocimetry will be emphasized since it is the only technique which has achieved practical importance up until now. Raman scattering and holography interferometry will also be addressed. Commonly-used techniques and qualitative type methods such as infrared for surface temperature and Schlieren techniques will not be addressed. A bibliography of 98 items is included in the publication. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1977
Accession Number
ADA045240

Entities

Organizations

  • AGARD

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Clocks
  • Computational Fluid Dynamics
  • Diffraction
  • Doppler Effect
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Hydrodynamics
  • Laser Beams
  • Light (Electromagnetic Radiation)
  • Measurement
  • Optical Correlators
  • Pressure Measurement
  • Standing Waves
  • Three Dimensional
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Directed Energy