INVESTIGATION OF THE EFFECT OF PLUG TRANSLATION ON THE THRUST VECTOR OF A MACH 3 PLUG NOZZLE

Abstract

An experimental investigation was made of a convergent plug exhaust nozzle to determine if effective thrust vectoring could be achieved through the use of a translating plug which travels in plane motion across a base region of slightly increased diameter. The objective was to determine if effective thrust vectoring could be obtained at higher pressure ratios than 6.2. Results showed that when operating at pressure ratios below the design value the amount and direction of thrust vectoring obtained was a strong function of the pressure ratio. For underexpanded operation the thrust vectoring was found to be nearly independent of the pressure ratio, but of too small a magnitude to be significant. The axial thrust was materially reduced by the step in both plugs.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1965
Accession Number
AD0621028

Entities

People

  • Richard K. Ellingson

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Supplies
  • Back Pressure
  • Compressors
  • Flow Rate
  • Flow Visualization
  • Mass Flow
  • Mechanical Engineering
  • Optical Equipment
  • Photographs
  • Plug Nozzles
  • Pressure Distribution
  • Pressure Transducers
  • Stagnation Pressure
  • Test Equipment
  • Two Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Propulsion Engineering.
  • Fluid Mechanics and Fluid Dynamics.
  • Mathematics or Statistics