EXPERIMENTAL STUDY OF THE DEVELOPMENT OF DETONATION

Abstract

THE INITIAL PHASE OF FLAME ACCELERATION DURING THE DEVELOPMENT OF DETONATION IN STOICHIOMETRIC HYDROGEN-OXYGEN MIXTURES, WITH PARTICULAR EMPHASIS ON THE GENERATION OF PRESSURE WAVES AT THE FLAME FRONT, WAS INVESTIGATED. THIS WAS ACCOMPLISHED BY MEANS OF STREAK SELF-LIGHT, STREAK SCHLIEREN, AND FLASH SCHLIEREN PHOTOGRAPHS, TOGETHER WITH SIMULTANEOUS PRESSURE MEASUREMENT AT SEVERAL LOCATIONS IN THE INDUCTION REGIME. EXPERIMENTAL RECORDS REVEALED CONSIDERABLE DETAIL OF THE PRESSURE WAVE AHEAD OF THE FLAME. THEY YIELD ALSO EVIDENCE OF THE STRUCTURE OF THE REACTION ZONE, AS WELL AS INFORMATION ON THE TRANSITION FROM A WRINKLED LAMINAR TO A TURBULENT FLAME. MARKED INFLUENCE OF THE TYPE OF IGNITION, SPARK DISCHARGE, PILOT FLAME, AND GLOW COIL, HAS BEEN DEMONSTRATED. THE FLAME ACCELERATION AND PRESSURE HISTORY COMPUTATIONS WERE IN SATISFACTORY AGREEMENT WITH EXPERIMENTAL OBSERVATION

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1960
Accession Number
AD0250661

Entities

People

  • A.j. Laderman
  • A.k. Oppenheim

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Agreements
  • Computations
  • Demographic Cohorts
  • Detonations
  • Hydrogen
  • Ignition
  • Measurement
  • Observation
  • Photographic Materials
  • Photographs
  • Photography
  • Pressure Measurement
  • Transitions

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.