Analysis of Transient Flow for Regenerative Liquid-Propellant Gun Concepts

Abstract

This research activity has involved the development of a two- dimensional, transient simulation of the interior ballistics process in regenerative liquid-propellant guns, with emphasis on the description of the flow inside the injector covering the domain of the flow path from propellant chamber to the exit of the annular orifice injector. This report presents the prediction of the onset and temporal growth of recirculation zones inside on orifice with fixed, spatially varying cross-sectional area, the direct prediction of discharge coefficients for moving-boundary orifice flows and comparisons with experimental data, and a study of grid resolution effects in a straight annular orifice for which an analytical solution for steady flow exists. Keywords: Liquid-propellant guns; Regenerative injection; Transient flow; Orifice flow; Computational fluid dynamics; Two-dimensional modeling.

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Document Details

Document Type
Technical Report
Publication Date
Sep 09, 1988
Accession Number
ADA200692

Entities

People

  • M. Y. Bahadori
  • Mostafa A. Rizk
  • Raymond B. Edelman

Organizations

  • Leidos

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aspect Ratio
  • Boundary Layer
  • Chemical Reactions
  • Combustion
  • Combustion Chambers
  • Computational Fluid Dynamics
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • Incompressible Flow
  • Interior Ballistics
  • Internal Combustion Engines
  • Liquid Propellants
  • Steady Flow
  • Steady State
  • Two Dimensional

Readers

  • Combustion science or combustion engineering.
  • Electronics Engineering
  • Fluid Mechanics and Fluid Dynamics.