The Application of a Highly Permeable Medium to Reduce Spin-Up Time and to Stabilize a Liquid-Filled Shell.

Abstract

Laboratory experiments and projectile flight tests describe a technique that can reduce the spin-up time of a liquid contained within a cylinder. When the end wall regions of a cylinder are lined with a highly permeable material, the secondary circulation that controls the spin-up process is greatly enhanced, and a reduction in the spin-up time is achieved. Since the time to spin-up is decreased, then the time during which a liquid-induced instability could act is also decreased.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1978
Accession Number
ADA329573

Entities

People

  • August Mark
  • W. P. D'amico

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Angular Momentum
  • Angular Motion
  • Canisters
  • Centrifugal Force
  • Containers
  • Flow
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Instability
  • Liquid Filled Projectiles
  • Materials
  • Mechanics
  • Momentum
  • Pressure Gradients
  • Projectiles

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Groundwater Contamination Remediation.
  • ballistics.