EFFECTS OF CONDUCTION AND VISCOSITY ON THE STABILITY OF LAMINAR FLAME

Abstract

The effects of conduction and viscosity on the stability of laminar flame are examined. If L denotes the ratio of the wave length of a disturbance to the flame width and alpha is the ratio of the ultimate temperature of the burned gas to the initial temperature of the fresh mixture, the flame is found to be stable if L is less than (or equal to) 2 alpha/(alpha-1) multiplied by 1/ RePr where Re is the Reynolds number of the flame based on the flame width and Pr denotes the Prandtl number of the mixture. It is further shown that the stabilization is achieved primarily through the effect of heat conduction on the flame speed rather than the influence of viscosity.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1961
Accession Number
AD0269350

Entities

People

  • Boa-teh Chu
  • J. Y. Parlange

Organizations

  • Brown University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundaries
  • Chemical Reactions
  • Combustion
  • Computational Science
  • Coordinate Systems
  • Equations
  • Flow
  • Government Procurement
  • Mach Number
  • Navier Stokes Equations
  • Payload
  • Prandtl Number
  • Reynolds Number
  • Scientific Research
  • United States
  • Viscosity

Readers

  • Analytical Mechanics
  • Combustion science or combustion engineering.
  • Fluid Mechanics and Fluid Dynamics.