Comparison of Spherical and Ellipsoidal Form Functions for Evaluating Black Powder

Abstract

Previous reported experimental closed-bomb data have been re-evaluated by including both the actual particle size distribution in models that consider the grains first as spheres, and then as ellipsoids. Small but significant improvements are demonstrated by applying more realistic physical parameters; however, computed results are far removed from strand burn rate measurements and the conclusion offered is that continued investigation suggests that grain fracture or grain break-up dominate closed-bomb evaluation techniques. Black powder, Burn rate, Closed bomb.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA201105

Entities

People

  • James E. Rose
  • Ronald A. Sasse'

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Burning Rate
  • Chemical Engineering
  • Chemistry
  • Closed Bomb Tests
  • Combustion
  • Commerce
  • Computer Programs
  • Engineering
  • Geometry
  • Grain Size
  • Gunpowder
  • Jet Propulsion
  • Mechanical Engineering
  • Military Research
  • Munitions
  • Particle Size
  • Weapons

Readers

  • Calculus or Mathematical Analysis
  • Computational Modeling and Simulation
  • Rocket Propulsion.