Experimental Techniques Applicable to Turbulent Flows.

Abstract

The recently developed Laser Raman and Laser Doppler techniques may be ideally suited for the diagnostics of combustion. Both techniques are nonintrusive and essentially supplementary. However, under certain conditions the spontaneous Raman diagnostics may fail, due to excessive noise, unwanted fluorescence and other sources of interference. In order to alleviate these difficulties, and attempt has been made to use the CARS diagnostic method. In this paper, after a review of the above-mentioned diagnostic techniques, some experimental results, and some data processing methods are discussed, which permit the extraction of turbulent information from spontaneous Raman scattering. These are compared to turbulent data as obtained from L.D.V. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1977
Accession Number
ADA063378

Entities

People

  • Samuel Lederman

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Classification
  • Combustion
  • Data Processing
  • Energy Levels
  • Flow
  • Flow Fields
  • Frequency
  • Measurement
  • New York
  • Propulsion Systems
  • Radiation
  • Raman Scattering
  • Scattering
  • Security
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Fluid Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy