User's Manual for Nozzleless Rocket Motor Internal Ballistics Computer Program

Abstract

The objective of this work was to develop a CDC 6400 FORTRAN computer program capable of accurately predicting the internal ballistics of motors designed for operation without nozzles. To accomplish this, previously obtained data were examined in detail. In addition, 12 motors were fabricated and test fired to augment the range of available test data. The computer program developed had to consider the effects of erosive burning, grain deflection, and incomplete metal combustion upon nozzleless motor performance. Input requires knowledge of motor geometry, propellant thermochemistry, base burn rate, and specification of erosive burning and grain deflection parameters. Comparisons of predicted and actual results show that where an adequate data base exists, with regard to erosive burning and grain deflection effects, accurate predictions will be provided by the computer program.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1973
Accession Number
AD0759559

Entities

People

  • Chan F. Price
  • David P. Harry Iii
  • Donald E. Taylor
  • Kenneth R. Small

Organizations

  • Lockheed Propulsion Company

Tags

DTIC Thesaurus Topics

  • Air Force
  • Combustion
  • Computer Programs
  • Computers
  • Contracts
  • Erosive Burning
  • Geometry
  • Mach Number
  • Mechanical Properties
  • Mechanics
  • Pressure Distribution
  • Propellants
  • Rocket Engines
  • Rocket Propulsion
  • Solid Propellants
  • Standards
  • Two Dimensional

Readers

  • Computer Science.
  • Rocket Propulsion.
  • Systems Analysis and Design