Experiments on Stability of Bunsen-Burner Flames for Turbulent Flow

Abstract

The results of a study of the stability of propane-air flames on Bunsen-burner tubes are presented. Fuel-air ratio, tube diameter, and Reynolds number were the primary variables. Regions of stability are outlined in plots of fuel-air ratio as a function of Reynolds number for flames seated on the burner lip and for flames suspended well above the burner. For fully developed flow, turbulent as well as laminar, the velocity gradient at the burner wall is a satisfactory variable for correlating the fuel-air ratio required for blow-off of seated flames for fuel-air ratios of less than 15 percent. For turbulent flames, wall velocity serves as a correlating variable in the same fuel-air-ratio range.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1948
Accession Number
ADA801144

Entities

People

  • David T. Williams
  • Lowell M. Bollinger

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Aeronautics
  • Air Flow
  • Air Force
  • Aircraft Industry
  • Combustion
  • Diameters
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Fuel Air Ratio
  • Laminar Flow
  • Pipe Flow
  • Reynolds Number
  • Turbulent Flow
  • United States

Fields of Study

  • Physics

Readers

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