Two-Point Rayleigh Scattering Measurements in a V-Shaped Turbulent Flame.

Abstract

A Rayleigh scattering technique for simultaneous measurements of density at two points in a flame was developed. This technique was used to deduce the spatial and time-space correlation and the two-point joint probability density functions of the density in a premixed turbulent flame in three orthogonal directions. A grid generated turbulent V-shaped flame at a flow velocity of 7.0 m/s and a half angle of 12 degree was used. The analysis show that this flame consists of structures of equal length scale in all three directions which decay as they are convected downstream by the flow. It is also shown that this flame does not consist of flamelets. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1982
Accession Number
ADA127803

Entities

People

  • F. Robben
  • L. Talbot
  • M. Namazian
  • R. K. Cheng

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Classification
  • Combustion
  • Combustors
  • Contracts
  • Engineering
  • Flame Holders
  • Flow
  • Laser Beams
  • Lasers
  • Low Noise Amplifiers
  • Measurement
  • Mechanical Engineering
  • Orientation (Direction)
  • Probability
  • Probability Density Functions
  • Rayleigh Scattering
  • Statistical Analysis

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Fluid Mechanics and Fluid Dynamics.
  • Statistical inference.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Space Objects