Numerical Investigation of Turbulent Flame Sheets

Abstract

An accurate physical model of a premixed turbulent flame (in the flamelet regime) is that combustion is confined to a thin sheet that can be regarded as a mathematical surface. This surface is convected and bent by the fluid motion, and it propagates normal to itself (relative to the fluid) at the local laminar flame speed. Direct numerical simulations have been performed to examine the important properties of material (i.e. non-propagating) and propagating surfaces in turbulence. The results have been described in seven papers. The straining, curvature and cusp formation of these surfaces has been well characterized.

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Document Details

Document Type
Technical Report
Publication Date
Mar 29, 1991
Accession Number
ADA236650

Entities

People

  • Stephen B. Pope

Organizations

  • Cornell University

Tags

Communities of Interest

  • Air Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Combustion
  • Curvature
  • Differential Equations
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Materials
  • Mechanics
  • Physics
  • Probability
  • Random Variables
  • Reynolds Number
  • Shape
  • Simulations
  • Statistics
  • Strain Rate
  • Turbulence

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Fluid Mechanics and Fluid Dynamics.
  • Pulsed Power and Plasma Physics.