Flame Propagation in a Vortex Ring

Abstract

Enhanced flame propagation speeds in vortex rings formed of premixed combustible gases has been reported. Constant volume combustion with a rotating heat source (which the ignited vortex core is) can produce a propagating pressure wave. But this mechanism apparently fails as the propagation criterion cannot be met. Stability considerations indicate that the molecules in a vortex core are rotationally excited. Three consequences of this are examined: The transport properties of the gas in the core; The effect on reaction rate; The possibility of heat conduction by an internal convection mechanism.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1972
Accession Number
AD0751494

Entities

People

  • Percival D. Mccormack

Organizations

  • University College Cork

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Angular Momentum
  • Combustion
  • Convection
  • Differential Equations
  • Equations
  • Fires
  • Flame Propagation
  • Flames
  • Fluid Dynamics
  • Fluid Flow
  • Heat Transfer
  • Molecular Physics
  • Molecules
  • Momentum
  • Thermal Conductivity
  • Transport Properties
  • Universities

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.