THE INFLUENCE OF EROSIVE BURNING ON ACOUSTIC INSTABILITY IN SOLID PROPELLANT ROCKET MOTORS,

Abstract

The influence of erosivity on the acoustic stability of solid fuel rockets is examined. Allowance is made for a frequency-dependent erosion constant. The theory verifies the stabilizing influence of the steady flow erosivity for propellants having positive erosion constants, with the contrary prediction for those having negative erosion constants. The influence of acoustic erosion is examined and the order in which it contributes is shown to depend on the symmetry of the flow field in the rocket, being quite different for rockets with nozzles at the end as compared to rockets with nozzles in the center. Degenerate and quasi-degenerate cases where erosivity might become a predominant effect are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1960
Accession Number
AD0626739

Entities

People

  • F. T. Mcclure
  • J. F. Bird
  • R. W. Hart

Organizations

  • Johns Hopkins University

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Velocity
  • Boundary Value Problems
  • Burning Rate
  • Combustion
  • Doppler Effect
  • Equations
  • Erosive Burning
  • Flow
  • Flow Fields
  • Frequency
  • Frequency Bands
  • Radial Velocity
  • Rocket Engines
  • Solid Propellants
  • Steady State
  • Waves

Fields of Study

  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Rocket Propulsion.
  • Structural Dynamics.