Proposed Modification of the Jet Flow from the BRL 1.68-Meter Shock Tube

Abstract

The jet from the open of the BRL 1.68-meter shock tube can produce high drag loading on a target with relatively little accompanying overpressure. This environment has characteristics resembling that of the non-ideal blast simulator. The flow from the tube has been used to overturn an item of military equipment. The jet from the tube is narrow. In this study, a small model of the tube with a steady-flow jet was used to examine the possibility of broadening and flattening the jet velocity profile. Several fixtures were built and attached to the end of the tube. These divided the flow into several jets directed to produce the desired jet modifications at ten diameters from the end. A six-jet and ten-jet fixture produced acceptable modifications. A plan for development and testing for the BRL 1.68-meter tube was developed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1991
Accession Number
ADA236368

Entities

People

  • Noel H. Ethridge

Organizations

  • Applied Research Associates (United States)

Tags

Communities of Interest

  • Air Platforms
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Armored Personnel Carriers
  • Blast Waves
  • Diameters
  • Dynamic Pressure
  • Explosions
  • Flow
  • Measurement
  • Military Equipment
  • Nuclear Explosions
  • Overpressure
  • Pitot Tubes
  • Shock Tubes
  • Simulations
  • Simulators
  • Stagnation Pressure
  • Steady Flow
  • Tubes

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Combustion Dynamics and Shock Wave Physics.
  • Software Engineering