A Novel Computational Approach to Combustion Modelling

Abstract

A novel wavelet adaptive multilevel representation (WAMR) algorithm combined with an extended intrinsic low dimensional manifold (ILDM) approach to solve challenging multiscale problems has been developed. The emphasis of this work was the development of a combined algorithm to rationally reduce to lower dimensions the differential equations that model unsteady, multi-dimensional combustion processes. In particular, there was a focus on problems in which there is full coupling between fluid mechanics and chemical kinetics. Such problems are characterized by a multiplicity of phenomena evolving over length and time scales which are widely disparate. Results are shown for a resolved viscous one-dimensional detonation in hydrogen/oxygen/argon with detailed kinetics. The method has been extended to multiple dimensions, and results are shown for flow in a lid-driven cavity at high Reynolds number.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2001
Accession Number
ADA400632

Entities

People

  • Joseph M. Powers
  • Samuel Paolucci

Organizations

  • University of Notre Dame

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Combustion
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Dynamics
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Ignition Lag
  • Kinetics
  • Mechanics
  • Partial Differential Equations
  • Reynolds Number

Readers

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