Technical Notes on Orifice Tests.

Abstract

The purpose of this task was to study the high speed flow of monopropellant through orifices in order to develop criteria for safe and efficient designs. Flow tests were conducted in a clear plastic, low pressure fixture and firing tests in a specially designed steel fixture. The initial injector studied was known to behave poorly in regenerative gun fixture firings. The flow tests revealed that it was subject to flow separation. The steel fixture tests with this injector exhibited strong evidence for flameholding inside the injector. Steel fixture firing tests were also performed on straight-through hole injectors. These showed evidence of flameholding in the orifice. The basic goal of this effort was not met. It is believed that neither the basic designs of the steel test fixture nor the instrumentation used were adequate for this task. Although no quantitative data was generated, a number of useful qualitative design guidelines were obtained.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1986
Accession Number
ADA164227

Entities

People

  • John Mandzy
  • Mel J. Bulman

Organizations

  • General Electric

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Back Pressure
  • Boundary Layer
  • Burning Rate
  • Combustion
  • Combustion Chambers
  • Compression Ignition
  • Dynamic Pressure
  • Equations
  • Flame Holders
  • Flow Separation
  • Flow Visualization
  • Fluid Flow
  • Frequency
  • Munitions
  • Pressure Measurement
  • Pressurization
  • Turbulent Flow

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Rocket Propulsion.
  • Systems Analysis and Design