An Experimental Investigation of Rectangular Exhaust-Gas Ejectors Applicable for Engine Cooling

Abstract

Investigation of the pumping characteristics of rectangular ejectors, actuated by the exhaust of a single-cylinder aircraft engine was determined for a range of mixing section area from 20 to 50 sq in over-all length from 12 to 42 in, aspect ratio from 1 to 5, diffusing exit area from 20 to 81 sq in, and aspect ratio of exhaust nozzle from 1 to 42. It was found that with a decrease in air quantity pumped and an increase in ejector length, the ejector pressure rise increased to optimum value. Optimum value of ejector area depends on air mass-flow ratio to exhaust gas for a given engine operating condition.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1944
Accession Number
ADA800833

Entities

People

  • Donald Bogatsky
  • Eugene J. Manganiello

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Temperature
  • Aircraft Engines
  • Aspect Ratio
  • Cooling
  • Exhaust Gases
  • Exhaust Nozzles
  • Flow
  • Flow Rate
  • Fuel Air Ratio
  • Lepidoptera
  • Mass Flow
  • Measurement
  • Nozzles
  • Peak Values
  • Sea Level
  • Specific Heat
  • Steady Flow

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Internal Combustion Engine (ICE) Technology.