Experimental Mating of Trapped Vortex Diffusers with Large Area Ratio Thrust Augmentors

Abstract

The performance of a straight wall diffuser and various trapped vortex diffusers was measured with a basic ARL ejector as a test bed. The straight wall diffuser, termed Configuration F by Aerospace Research Laboratories (ARL), yielded thrust augmentation ratios in near agreement with those previously obtained by ARL. Also, as noted by ARL, the thrust augmentation of Configuration F was insensitive to changes in the primary injector pressure. The trapped vortex diffusers investigated were of varying lengths.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1974
Accession Number
ADA004802

Entities

People

  • Charles H. Haight
  • Robert M. O'donnell

Organizations

  • Vought

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Afterburners
  • Air Force
  • Aircrafts
  • Barometric Pressure
  • Boundary Layer
  • Boundary Layer Control
  • Calibration
  • Diffusion
  • Flowmeters
  • Geometry
  • Mass Flow
  • Measurement
  • Plastic Explosives
  • Pressure Gradients
  • Pressure Measurement
  • Pressurization
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Combustion and Flow Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster