Comparison of Predictions of Three Two-Phase Flow Codes

Abstract

Three different two-phase flow codes have been compared by application to a 155mm howitzer high zone charge with input data derived from independent measurements or analysis. Code predictions were compared with firing test values and with a lumped parameter code. Quantitative comparisons are reported for pressure difference waves, peak breech pressure, rise time and travel at peak pressure, flame spreading rate, and CPU time. The major findings were that (1) each code predicts different pressure waves, (2) pressure wave predictions are insensitive to the presence of the central core igniter, and (3) nominal data are inadequate for quantitative predictions.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA037348

Entities

People

  • Carl W. Nelson

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ballistics
  • Burning Rate
  • Combustion
  • Energy
  • Fluid Flow
  • Gunpowder
  • Heat Transfer
  • Jet Propulsion
  • Measurement
  • Mechanical Engineering
  • Military Research
  • Muzzle Velocity
  • Projectiles
  • Propelling Charges
  • Solid Propellants
  • Thermodynamics
  • Two Phase Flow

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computational Modeling and Simulation
  • ballistics.