The Theory of the Critical Conditions of a Gas Ejector at Large Pressure Drops

Abstract

The critical operating conditions of an ejector with a cylindrical mixing chamber are analyzed within the framework of ideal-gas dynamics. Jet flows, overexpanded with respect to the static pressure of a low-pressure gas, are calculated on the basis of supersonic compressed layer theory. The calculations confirm the experimental finding that the degrees of compression attainable in ejectors in the presence of large pressure gradients exceed the limiting analytical values obtained from theories developed for moderate pressure gradients.

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Document Details

Document Type
Technical Report
Publication Date
Jul 28, 1972
Accession Number
AD0750536

Entities

People

  • V. N. Gusev

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Air Force
  • Compression
  • Compression Ratio
  • Ejection
  • Ejectors
  • Equations
  • Flow
  • Flow Rate
  • Foreign Technology
  • Gas Flow
  • High Pressure
  • Jet Flow
  • Mass Flow
  • Pressure Gradients
  • Shock Waves
  • Static Pressure
  • Translations

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Combustion Dynamics and Shock Wave Physics.
  • Combustion and Flow Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow