Vaporization Waves in Impulsively Heated Materials

Abstract

Computer hydrocodes are essential in determining the magnitude, transmission, and effects of stresses produced when energy is impulsively deposited in a material. As do any solutions of the hydrodynamic equations, these numerical approaches depend upon the form of an auxiliary equation of state for their success. Most hydrocodes give satisfactory treatment in the solid and liquid phases but in codes such as PUFF and RIP the equations of state ignore or improperly treat the liquid-vapor phase change region in which the major expansion of subcritically heated materials takes place. In this paper, a model for this expansion is described which was successful in resolving an anomaly in exploding wire response but is of a type that could not be duplicated by hydrocodes using these equations of state.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1972
Accession Number
AD0785610

Entities

People

  • Henry S. Burden

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aluminum
  • Barometric Pressure
  • Detectors
  • Electron Beams
  • Energy
  • Equations
  • Equations Of State
  • Exploding Wires
  • Heat Energy
  • Liquid Phases
  • Materials
  • Measurement
  • Phase
  • Pressure Gradients
  • Waves
  • X Rays

Readers

  • Educational Psychology
  • Fluid Dynamics.
  • Manufacturing Engineering.