Flame Propagation in Propellant Cracks

Abstract

This is a report of work relating to the spread of solid propellant flames into cracks present in the propellant surface. The tests were performed in a no-flow environment within a high-pressure, windowed combustion bomb. Data were all recorded by high-speed motion picture camera and all test conditions were identical -- 700 psia, and ambient initial propellant temperature. Test results point to no lower minimum crack width which will exclude flame penetration. The time required for flame entry into cracks decreases with decreasing crack width and propagation rates within a crack increase as crack width decreases.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1969
Accession Number
AD0851090

Entities

People

  • Charles E. Payne

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Burning Rate
  • California
  • Cameras
  • Combustion
  • Export Controls
  • Flame Propagation
  • Flow
  • Government Procurement
  • Governments
  • Heat Transfer
  • Heat Transfer Coefficients
  • High Pressure
  • Motion Pictures
  • Propellant Grains
  • Propellants
  • Rocket Propulsion
  • Solid Propellants

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Rocket Propulsion.
  • Systems Analysis and Design