Theoretical Studies and Experimental Validation for Generating Concentration Distributions Across the Propellant Grain Upon Shear-Induced Particle Migration During Extrusion

Abstract

The theory of the shear-induced particle migration is presented with numerical simulation results from multiple geometries using Poiseuille flow in a rectangular die. It appears that the functionally-grading of propellant strands can be generated upon shear-induced particle migration in propellant extrusion. The theory and the results obtained in this study with an inert simulant formulation demonstrate the utilities of the suggested methodologies and their practicality.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2007
Accession Number
ADA469808

Entities

People

  • David Fair
  • Dilhan M. Kalyon
  • Donald Chiu
  • M. Allende
  • Sam Moy

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Channel Flow
  • Couette Flow
  • Electron Microscopy
  • Energetic Materials
  • Engineering
  • Flow
  • Geometry
  • Materials
  • Materials Processing
  • Materials Testing
  • Particle Size
  • Particles
  • Poiseuille Flow
  • Propellant Grains
  • Propellants
  • Simulations
  • Steady State

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.
  • Rocket Propulsion.