Moments on a Coning M864 by a Liquid Payload: The Candlestick Problem and Porous Media

Abstract

Moments that are caused by a payload assumed to be an inviscid liquid flowing in a coning projectile are predicted. This payload is contained in a uniform sequence of end-to-end cylinders stacked in columns along and off the symmetry axis of the projectile. A theoretical model is used to analyze inertial waves passing through the liquid, which are generated by the coning motion. This analysis continues by considering a single column along the projectile symmetry axis, which is filled with an inviscid fluid saturating porous media. Eigen frequencies and their impact on liquid moments are discussed concerning the flight stability of the projectile for a wide range of payload configurations and porosities when the projectile is subjected to various coning frequencies.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2006
Accession Number
ADA453380

Entities

People

  • Gene R. Cooper

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aspect Ratio
  • Bessel Functions
  • Boundary Layer
  • Computational Science
  • Coordinate Systems
  • Equations
  • Equations Of Motion
  • Euler Equations
  • Free Flight
  • Frequency
  • Military Research
  • Molecular Dynamics
  • Porosity
  • Pressure Gradients
  • Resonant Frequency
  • Sequences
  • Symmetry

Readers

  • Combustion and Flow Dynamics.
  • Control Systems Engineering.
  • ballistics.