Modification and Improvement of Software for Modeling Multidimensional Reacting Fuel Flow.

Abstract

This report describes a project to develop computational models of reacting flows that combine the efforts of detailed chemical kinetics with complex fluid mechanics to form an integrated analytical code. Initial efforts were aimed at solutions for counterflow diffusion flames; this model incorporated both finite rate chemistry and complex kinetic theory transport effects. Next, a flame sheet model was used to provide improved starting estimates for the calculations. A combination of time integration and Newton's method was used to solve the flame sheet and finite rate equations. Success with the one dimensional model led to the development of a more generalized two-dimensional model. A parallel effort investigated ways to improve the computational efficiency of the primitive variable implementation of the TEACH code. Further generalization of these ideas to axisymmetric (laminar and turbulent) diffusion flame studies will be the focus of a follow on project. Keywords: Teach Code; Reacting Flows; Chemical Kinetics; Finite Rate Chemistry; Kinetic Theory Transport Effects; Flame Sheet Models; Combustion Modeling; Computational Fluid Dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1986
Accession Number
ADA176281

Entities

People

  • David Keyes
  • Mark Angevine
  • Mitchell Smooke

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Boundary Layer
  • Boundary Value Problems
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Mathematical Models
  • Mechanical Properties
  • Physics Laboratories
  • Stagnation Point

Readers

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