PARTICLE VELOCIMETER FOR USE CLOSE-IN TO UNDERGROUND EXPLOSIONS.

Abstract

Details of the engineering effort expended in the development of a particle velocimeter for use close-in to an underground explosion are presented. The Faraday and mutual-induction particle velocimeter concepts (originally described in DASA 1431) are examined in greater detail, both theoretically and experimentally. It was found experimentally that the gage operates fully in accord with the theoretical expectations discussed in DASA 1431. An expression is derived for the error (as a function of time) inherent in the measure of particle velocity provided by the mutual induction gage (under the assumption that the shockwave is a step function in pressure, temperature, and shock and particle velocities). The laboratory and field tests conducted with prototype gages are discussed, the results obtained are explained, and the instrumentation designed and used is described. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 29, 1964
Accession Number
AD0610676

Entities

People

  • William L. Danek Jr.

Tags

DTIC Thesaurus Topics

  • Engineering
  • Explosions
  • Field Tests
  • Instrumentation
  • Particles
  • Prototypes
  • Step Functions
  • Underground Explosions
  • Velocimeters

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Explosive Engineering.
  • Fluid Dynamics.