Large Eddy Simulation of a Turbulent Nonpremixed Piloted Methane Jet Flame (Sandia Flame D)

Abstract

Large eddy simulation (LES) is conducted of the Sandia Flame D [Proc. Combust. Inst. 27 (1998) 1087,Sandia National Laboratories (2004)], which is a turbulent piloted nonpremixed methane jet flame. The subgrid scale (SGS) closure is based on the scalar filtered mass density function (SFMDF) methodology[J. Fluid Mech. 401 (1999) 85]. The SFMDF is basically the mass weighted probability density function(PDF) of the SGS scalar quantities [Turbulent Flows (2000)]. For this flame (which exhibits little local extinction), a simple flamelet model is used to relate the instantaneous composition to the mixture fraction. The modelled SFMDF transport equation is solved by a hybrid finite-difference/Monte Carlo scheme. This is the first LES of a realistic turbulent flame using the transported PDF method as the SGS closure. The results via this method capture important features of the flame as observed experimentally.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
AD1005680

Entities

People

  • F. A. Jaberi
  • M. R. Sheikhi
  • P. Givi
  • Stephen B. Pope
  • T. G. Drozda

Organizations

  • Cornell University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boltzmann Equation
  • Combustion
  • Computational Fluid Dynamics
  • Differential Equations
  • Diffusion
  • Equations
  • Experimental Data
  • Fluid Dynamics
  • Fluid Flow
  • Jet Flames
  • Large Eddy Simulation
  • Mechanical Engineering
  • Payload
  • Research Facilities
  • Statistics
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

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