Ignition Studies in Nonpremixed Hydrogen/Air Combustion

Abstract

Ignition in nonpremixed counterflowing jets of fuel against heated air has been investigated experimentally, computationally, and analytically. Using H2/air ignition as the primary test system, the dominant chemical kinetics of ignition has been identified as well as the role of temperature, pressure, aerodynamic straining, and fuel concentration on the ignition process. In addition, the coupling of mass transport and aerodynamic straining to the chemical kinetics in nonpremixed ignition has been clarified. The methodologies developed for investigating hydrogen/air ignition have been extended to ignition of more complex and realistic fuels such as methane, n-butane, and is obutane. Ignition, Hydrogen, Nonpremixed, Diffusion flames, Numerical modelling, Asymptotic analysis, Explosions.

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Document Details

Document Type
Technical Report
Publication Date
Jan 24, 1994
Accession Number
ADA275954

Entities

People

  • Chung K. Law
  • Thomas G. Kreutz

Organizations

  • Princeton University

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Temperature
  • Alcohols
  • Chemical Kinetics
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Combustion
  • Couplings
  • Diffusion
  • Engineering
  • Explosions
  • Flow Fields
  • Hydrogen
  • Ignition
  • Kinetics
  • Methanols
  • Reaction Mechanisms

Readers

  • Combustion science or combustion engineering.