Investigation of Small-Caliber Primer Function Using a Multiphase Computational Model

Abstract

This report describes further development in the formulation of a primer model that is compatible with the ARL-NGEN3 code and small caliber weapons that takes in account multidimensional, multiphase interior ballistics codes, which employ coupled Eulerian-Lagrangian schemes to explicitly treat both the gas and solid phase. The model is based on the One Dimensional Turbulence modeling approach that has recently emerged as a powerful tool in multiphase simulations. Initial results are shown for the model run as a stand-alone code and are compared to recent experiments with small-caliber primers. Integration of the primer model with the Army's ARL-NSRG computational fluid dynamics code is presented and the results are compared to experiments with small-caliber primers fired into empty test chambers. It is proposed that this further progress sets the stage for coupling the primer model to the ARL-NGEN3 code.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2008
Accession Number
ADA484175

Entities

People

  • John R. Schmidt
  • Michael J. Nusca

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Ballistics
  • Boundary Layer
  • Chemical Reactions
  • Combustion
  • Computational Fluid Dynamics
  • Dynamics
  • Equations Of State
  • Fluid Dynamics
  • Interior Ballistics
  • Mach Number
  • Phase
  • Physics Laboratories
  • Pressure Measurement
  • Projectiles
  • Propellants
  • Simulations

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computational Modeling and Simulation
  • ballistics.