Pressure Measurements in a Liquid-Filled Cylinder at High Coning Frequencies

Abstract

Endwall pressure measurements were completed in a liquid -filled cylinder for a Reynolds number near 193 and coning rates exceeding the spin rate. Previous mechanical and electrical systems were modified to accommodate coning rates as high as 20 Hz. Two fixed coning angles of 0.436 and 0.987 degree were used to examine nonlinear effects. Resulting pressure coefficient data (Cp) were verified to be linear with coning angle. The low Reynolds number experimental data were compared with A Spatial Eigenvalue Method that is applicable for this range of coning and spin frequencies. The theory predicted approximately 75 percent of the pressure magnitude that was actually measured. Keywords: Internal pressure measurements; Ammunition; Gyroscope; Explosives; Liquid-filled projectiles.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1989
Accession Number
ADA213877

Entities

People

  • Bradford S. Davis
  • David J. Hepner
  • Thomas M. Kendall

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Ammunition
  • Classification
  • Coefficients
  • Eigenvalues
  • Experimental Data
  • Frequency
  • Instrumentation
  • Internal Pressure
  • Liquid Filled Projectiles
  • Measurement
  • Munitions
  • Pressure Measurement
  • Projectiles
  • Reynolds Number
  • Security
  • Transducers

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Fluid Mechanics and Fluid Dynamics.
  • ballistics.