Advanced Chemical Modeling for Turbulent Combustion Simulations

Abstract

The goals of this project were the development of new sub-filter models for large eddy simulation of turbulent combustion and of chemical mechanisms for jet fuel surrogates. The sub-filter modeling work focuses on the development of a framework for describing multiple combustion regimes using the flamelet approach, on describing the scalar dissipation rate in turbulent non-premixed combustion, and on modeling strain effects in turbulent premixed combustion. The chemistry work proposes a method for defining jet fuel surrogates, describes how different sub-mechanisms can be incorporated into the definition, and finally creates and validates a mechanism that serves as an accurate surrogate for jet fuel behavior.

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Document Details

Document Type
Technical Report
Publication Date
May 03, 2012
Accession Number
ADA567579

Entities

People

  • Heinz Pitsch

Organizations

  • Stanford University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Alkanes
  • Alkenes
  • Barometric Pressure
  • Boltzmann Equation
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Combustion
  • Continuous Chemical Reactors
  • Cyclic Hydrocarbons
  • Decomposition
  • Experimental Data
  • Ignition Lag
  • Large Eddy Simulation
  • Organic Chemistry
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Fluid Mechanics and Fluid Dynamics.
  • Systems Analysis and Design