COMPUTATION OF HOLLOW CYLINDER EXPLOSIONS

Abstract

The report treats the explosion caused by a charge which is placed between two hollow co-axial cylinders. It is assumed that at the beginning of the motion of the cylinders the explosive has been detonated completely so that the space between the cylinders is filled by a gas under high pressure. The flow of this gas during the collapse of the inner cylinder and the expansion of the outer cylinder is governed by a quasi-linear second order partial differential equation. This equation is solved numerically using a two-level difference scheme. The solution furnishes the fragment velocities of the outer cylinder and the collapse velocity of the inner cylinder. The results are compared with experimental data and asymptotic formulae. The same computation scheme is applied to the computation of the motions of two parallel plates with a charge exploded between them.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1967
Accession Number
AD0664774

Entities

People

  • Aivars Celmins

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Counter IED
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Agreements
  • Boundaries
  • Computations
  • Detonations
  • Differential Equations
  • Equations
  • Experimental Data
  • Explosions
  • Explosives
  • Flow
  • Fluid Flow
  • Gas Flow
  • High Pressure
  • Materials
  • Measurement
  • Numerical Integration
  • Partial Differential Equations

Fields of Study

  • Mathematics

Readers

  • Fluid Dynamics.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Space
  • Space - Hall-Effect Thruster