Role of Acoustics in Flame/Vortex Interactions

Abstract

The role of acoustics in flame/vortex interactions is examined via asymptotic analysis and numerical simulation. The model consists of a one-step, irreversible Arrhenius reaction between initially unmixed species occupying adjacent half-planes which are allowed to mix and react by convection and diffusion in the presence of an acoustic field or a time-varying pressure field of small amplitude. The main emphasis is on the influence of the acoustics on the ignition time and flame structure as a function of vortex Reynolds number and initial temperature differences of the reactants.... Ignition, Acoustics, Flame, Vortex.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1993
Accession Number
ADA263153

Entities

People

  • M. Y. Hussaini
  • Michele G. Macaraeg
  • T. L. Jackson

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Waves
  • Acoustics
  • Boundary Layer
  • Burning Rate
  • Chemical Reactions
  • Combustion
  • Computers
  • Convection
  • Engineering
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Mechanics
  • Reynolds Number
  • Simulations
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Computational Fluid Dynamics (CFD)
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering