Filtered Mass Density Function for Subgrid Scale Modeling of Turbulent Diffusion Flames

Abstract

This research was primarily concentrated on the following issues: (1) development of the joint velocity-scalar filtered density function for subgrid scale (SGS) closure of turbulent combustion; and (2) implementation of the scalar filtered density function for large eddy simulation of complex turbulent flames. An extensive systematic study was performed and resulted in significant new findings. With regard to (1), a modelled transport equation was developed and solved for the joint density function. The predicted results via this model were more accurate than other existing SGS models. With regard to (2), the model was employed for prediction of a piloted jet diffusion flame and a bluff-body stabilized flame. The predicted results compared very well with experimental data.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 27, 2005
Accession Number
ADA454777

Entities

People

  • C. K. Madnia
  • M. R. Sheikhi
  • P. Givi
  • T. G. Drozda

Organizations

  • University of Pittsburgh

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Chemical Reactions
  • Combustion
  • Computational Fluid Dynamics
  • Computational Science
  • Department Of Defense
  • Diffusion
  • Equations
  • Fluid Dynamics
  • Large Eddy Simulation
  • Mechanical Engineering
  • Research Facilities
  • Simulations
  • Three Dimensional
  • Turbulence
  • Turbulent Diffusion
  • Turbulent Mixing

Readers

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