Modeling Mixing and Reaction in Turbulence Combustion

Abstract

The most advanced probability density function (PDF) turbulent combustion models were developed and applied to make calculations of turbulent flames. The numerical accuracy of the calculations was carefully studied, and algorithmic improvements were developed. Various turbulence and combustion sub-models were developed and improved. The most significant achievement was the accurate calculation of the Sandia piloted jet nonpremixed flames, including quantitative predictions of local extinction, reignition, and minor species concentrations. Essential ingredients for these successful calculations were: the numerically-accurate particle-mesh method; the augmented reduced chemical mechanism; the in situ adaptive tabulation (ISAT) algorithm; and the Euclidean minimum spanning tree (EMST) mixing model.

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Document Details

Document Type
Technical Report
Publication Date
May 08, 2000
Accession Number
ADA378397

Entities

People

  • Stephen B. Pope

Organizations

  • Sibley School of Mechanical and Aerospace Engineering

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Combustion
  • Computational Fluid Dynamics
  • Equations
  • Extinction
  • Fluid Dynamics
  • Fluid Mechanics
  • Jet Flames
  • Large Eddy Simulation
  • Mechanics
  • Physics
  • Probability Density Functions
  • Random Variables
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Computational Fluid Dynamics (CFD)