Measurement of Erosive Burning Rates

Abstract

A new technique for measuring average erosive burning rates of a propellant fired under realistic motor conditions is described. By utilizing a small test motor attached as a blast tube to a large gas generator, a minimal amount of test propellant is required. Hence the technique is attractive for evaluating or ranking the erosive-burning tendencies of compositions in a propellant development program. Erosive burning rates were measured for a CTPB- based composite propellant. Excellent correlation was found between the erosive burning rate, Mach number at the tail end of the propellant grain, and chamber pressure. The erosive burning rates measured in the test motors were independent of the composition of the gas-generator propellant. Application of the data in the design of an erosive-burning propellant grain has not been made.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1969
Accession Number
AD0847132

Entities

People

  • Joe M. Viles

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Blast Tubes
  • Burning Rate
  • Combustion
  • Composite Materials
  • Composite Propellants
  • Diameters
  • Erosive Burning
  • Mach Number
  • Materials
  • Materials Laboratories
  • Measurement
  • Propellant Grains
  • Propellants
  • Propulsion Systems
  • Solid Propellants
  • Specific Heat
  • Tubes

Fields of Study

  • Physics

Readers

  • Rocket Propulsion.