ACOUSTIC WAVE-BURNING ZONE INTERACTION IN SOLID PROPELLANTS

Abstract

Installation of guard rings of burning propellant around a burning propellant sample improved the reproducibility of the results in the flame zone amplification experiment. However, more effort is required to make this experiment still more reproducible. Experiments were performed to determine the frequency spectrum of the combustion noise from burning strands of solid propellant. For all propellants tested, composite and double base alike, the sound intensity increased sharply from 1000 cps to a maximum at approximately 3000 cps and then decreased monotonically with frequency beyond 3000 cps. The sole effect of oxidizer particle size was to change the sound intensity level of the spectrum curve, but not its form.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1962
Accession Number
AD0609817

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Absorption
  • Acoustic Propagation
  • Acoustic Properties
  • Acoustic Signals
  • Acoustic Waves
  • Ammonium Perchlorate
  • Analyzers
  • Anechoic Chambers
  • Combustion
  • Exhaust Gases
  • Frequency
  • Guard Rings
  • Particle Size
  • Recording Systems
  • Solid Propellants
  • Sound Waves
  • Wave Analyzers

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Rocket Propulsion.