Large Blast-Wave Simulators (LBS) with Cold-Gas Drivers: Computational Design Studies

Abstract

Computational, parametric design studies were carried out using the BRL-QID hydrocode to investigate the effects of variations in length of a US-LBS designed to simulate blast waves within a predefined test envelope. The simulation requirement was based on a 60m/kT 1/3 Height of Burst, scaled, tactical explosion for shock overpressures ranging from 14 to 240 kPa (2-35 psi) and weapon yields rangining form 1 kT to 1 MT. The US-LBS design is based on the LBS at the Centre d'Etudes de Gramat (CEG), France. However, the cross sectional reference area of the test section is expected to be twice the size of the French facility. Studies are preformed to investigate the effects of changes of the driver length, the expansion tube length without RWE and the expansion tube length with a passive RWE. The results of these studies are presented in form of design envelopes, and discussed. Recommendations are made for the US-LBS design. Keywords: Large Blast wave simulators; Shock tubes; Blast wave simulation; Blast waves; Shock overpressure; Pressure history; Dynamic pressure; Computational fluid dynamics; Hydrocode computations.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA181400

Entities

People

  • Klaus O. Opalka

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Blast
  • Blast Waves
  • Computational Fluid Dynamics
  • Dynamic Pressure
  • Engineering
  • Euler Equations
  • Explosions
  • Explosives
  • Fluid Dynamics
  • Fluid Flow
  • Military Applications
  • Military Research
  • Nuclear Weapons
  • Overpressure
  • Security
  • Simulators
  • Static Pressure

Fields of Study

  • Engineering
  • Physics

Readers

  • Explosive Engineering.
  • Pulsed Power and Plasma Physics.
  • Small Business Innovation Research Program (SBIR) EDI Research and Innovation.