Ignition of Flamelets Behind Incident Shock Waves and the Transition to Detonation.

Abstract

Time-dependent numerical simulations are used to elucidate some of the details of weak ignition behind incident shocks and the subsequent transition to detonation. It is shown that a small amount of energy released in the shocked region can be the origin of pressure waves which accelerate the shock front. The simulations presented here show how this leads to the formation of reactive centers. The formation of a hot spot due to energy release at one of the reactive centers and the subsequent development of a pair of flamelets from the hot spot are studied using the numerical simulations. The results of the simulations are also compared to experimental observations.

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Document Details

Document Type
Technical Report
Publication Date
Mar 07, 1983
Accession Number
ADA125217

Entities

People

  • Elaine Oran
  • Kazhikathra Kailasanath

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Chemical Kinetics
  • Chemical Reactions
  • Combustion
  • Detonation Waves
  • Differential Equations
  • Equations
  • Explosives
  • Fluid Dynamics
  • Hot Spots
  • Kinetics
  • Materials
  • Military Research
  • Shock Tubes
  • Shock Waves
  • Simulations
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Combustion science or combustion engineering.