A Parametric Study of the Muzzle Blast from a 20mm Cannon

Abstract

The muzzle flow properties of a 20mm cannon are measured for a range of launch velocities from 260 m/s through 1000 m/s. Sequential spark shadowgraphs are taken of the developing muzzle blast. Pressure surveys are made of the blast field over a range from 10 to 40 calibers from the muzzle. An idealized muzzle device is inserted in the flow and surface pressure distributions taken for a variety of geometries relative to the gun tube. Experimental results are compared with available theoretical and numerical models.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1981
Accession Number
ADA105531

Entities

People

  • Edmund J. Gion
  • Edward M. Schmidt
  • Kevin S. Fansler

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Artillery
  • Blast Waves
  • Flow Fields
  • Gas Flow
  • Geometry
  • Jet Propulsion
  • Mach Number
  • Measurement
  • Military Research
  • Pressure Distribution
  • Pressure Transducers
  • Projectiles
  • Propellants
  • Rotating Bands
  • Steady State
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • ballistics.