Static Thrust Augmentation of Rocket Motors by Air Entrainment

Abstract

The effect of duct geometry and primary jet characteristics on the level of thrust augmentation of conventional rocket motor jets, with conical nozzles exhausting into a stationary atmosphere, has been investigated. For a range of straight, cylindrical ducts with bell-mouth inlets, it is found that the duct thrust is primarily a function of duct length and primary thrust. Chamber pressure and nozzle conditions have little effect other than their effect on primary thrust.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1983
Accession Number
ADA143179

Entities

People

  • R. D. Irvine

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Entrainment
  • Combustion
  • Conical Nozzles
  • Department Of Defense
  • Diameters
  • Engineering
  • Entrainment
  • Geometry
  • Mechanical Engineering
  • Nozzles
  • Propellants
  • Propulsion Systems
  • Rocket Engines
  • Rocket Propulsion
  • Rockets
  • Thrust
  • Thrust Augmentation

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.