Propellant Ignition and Combustion in the 155mm Howitzer

Abstract

A mathematical model has been formulated and programmed in FORTRAN 4 for use in the propellant charge design and investigation of the performance anomalies for the 155mm howitzer. The model solves the unsteady gas dynamic equations for conservation of mass, momentum, and energy by finite differencing simultaneously with auxiliary expressions for such important features as gas generation, bed friction, barrel boundary layer development, and projectile acceleration, until the projectile leaves the muzzle. This report details the mathematical concepts and experimental results that were incorporated into modifications of an existing mathematical model (for the 175mm gun) from which the 155mm howitzer model is derived.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1975
Accession Number
ADA013577

Entities

People

  • E. B. Fisher
  • K. W. Graves

Organizations

  • Calspan

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Burning Rate
  • Coefficients
  • Combustion
  • Computer Programs
  • Elastic Properties
  • Flash Lamps
  • Gun Chambers
  • Gunpowder
  • Heat Transfer
  • Modulus Of Elasticity
  • Plastic Explosives
  • Pressure Distribution
  • Pressure Measurement
  • Propelling Charges
  • Stagnation Pressure
  • Time Intervals

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Theoretical Analysis.
  • ballistics.