Numerical Predictions for Ignition of a Confined Reactive Gas

Abstract

Ignition of a reactive gas in a closed chamber is investigated by numerically solving the one-dimensional, compressible Navier-Stokes Equations for a multi-species reacting flow. The full momentum equation is retained in order to model the influence of the finite-size chamber. Ignition is studied on a go/no-go basis when the external heat flux is interrupted. The results for a simple premixed reaction show a complex interaction with the acoustic modes, a hang-fire ignition separating go/no-go, and the possibility of a shock wave once ignition occurs. Dependence of ignition time on external heat flux, activation energy, and other kinetic parameters is described.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA051052

Entities

People

  • Douglas E. Kooker

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Chemical Reactions
  • Combustion
  • Computational Science
  • Convection
  • Decomposition
  • Differential Equations
  • Diffusion Coefficient
  • Energy
  • Fires
  • Heat Of Activation
  • Heat Of Reaction
  • Military Research
  • Navier Stokes Equations
  • Physics Laboratories
  • Propellants
  • Specific Heat

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion science or combustion engineering.
  • Computational Fluid Dynamics (CFD)