Formation and Propagation Mechanisms of Diverging Gaseous Detonation Waves

Abstract

The unconfined gaseous detonation wave problem can be summarized in terms of three phenomenological aspects: initiation, global propagation and evolution of structure. The initiation aspect concerns the study of the mechanisms and immediate consequences of rapid energy transfer from a spatially localized source into a highly explosive gaseous medium. On the basis of source power density considerations the authors have successfully achieved correlation of a broad range of experimental results and are currently extending studies into the realm of ultra-short (picosecond laser spark) duration ignition. The global propagation and evolution of structure are determined by the local nonlinear coupling between chemical kinetics and hydrodynamics in the transient expanding flow field immediately behind the leading shock front.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0742174

Entities

People

  • Christiane Guirao
  • John H. Lee
  • Romas Knystautas

Organizations

  • McGill University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Kinetics
  • Chemical Reactions
  • Combustion
  • Couplings
  • Detonation Waves
  • Detonations
  • Dynamics
  • Energy
  • Energy Transfer
  • Engineering
  • Explosions
  • Explosives
  • Flow Fields
  • Ignition
  • Kinetics
  • Shock Tubes
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Pulsed Power and Plasma Physics.
  • Seismology

Technology Areas

  • Directed Energy