Swirling Hydrogen Jet Mixing with a Co-Axial Air Stream,

Abstract

The report is concerned with the turbulent mixing of hydrogen jets in an axial airstream. The efficiency of mixing of swirling and non-swirling jets in terms of the angle of jet spread, and decay of maximum concentration of jet species is estimated and compared with previous work in this field. A gauge designed and developed to measure the swirl intensity produced by a small diameter injector is described. An expression for estimating the angle of jet spread is suggested and a technique for effecting rapid mixing of hydrogen in a scramjet combustor utilizing several small swirling jet injectors is described. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1970
Accession Number
AD0731283

Entities

People

  • Christopher Trotter

Organizations

  • University of Sheffield

Tags

DTIC Thesaurus Topics

  • Combustors
  • Diameters
  • Efficiency
  • Engines
  • Heat Engines
  • Heat Transfer Devices
  • Hydrogen
  • Injectors
  • Intensity
  • Internal Combustion Engines
  • Mixing
  • Supersonic Combustion Ramjet Engines
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.