RAREFACTION SHOCK POSSIBILITY IN A VAN DER WAALS-MAXWELL FLUID

Abstract

The rarefaction shock is found to be impossible practically in an equilibrium Van der Waals-Maxwell fluid, in and across all phase regions. The existence of this type shock depends explicitly on the constant-volume heat, as well as the pressure equation of state. The form of specific heat assumed includes contributions from translation, rotation, and vibration energies of the molecule; Einstein functions are used to represent the latter. In particular, the vaporizing expansion wave in the saturated liquid phase cannot be discontinuous. Metastable states of supersaturation are not considered. Despite the results for this theoretical model, the necessary conditions for the rarefaction shock are found to be satisfied, in principle, for a small region near the critical point of a real two-phase fluid (steam).

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1968
Accession Number
AD0678562

Entities

People

  • Donald C. Mylin
  • George D. Kahl

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Critical Temperature
  • Discontinuities
  • Engineering
  • Equations
  • Equations Of State
  • Fluid Dynamics
  • Fluid Mechanics
  • Fluids
  • Heat Energy
  • Liquid Phases
  • Military Research
  • Phase
  • Phase Transformations
  • Physics Laboratories
  • Specific Heat
  • Waves

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Materials Science and Engineering.
  • Structural Dynamics.