SST Technology Follow-On Program - Phase 2. Noise Suppressor/Nozzle Development. Volume 5. Performance Technology - The Effect of Initial Jet Conditions on the Mixing and Performance of a 2-D Constant Area Ejector

Abstract

The effects of initial jet conditions on the performance and mixing in a constant area ejector were investigated. Initial jet conditions varied with velocity profile, base thickness, and primary turbulence level. An effect of each of these quantities on thrust and weight flow augmentation was noted. Profile measurements were affected substantially by ejector wall boundary layer growth and could not be used. Spark shadowgraphs, made through the clear ejector sidewalls, show noticeable effects of initial conditions at high pressure ratios.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1975
Accession Number
ADB004732

Entities

People

  • R. L. Thornock
  • R. S. Armstrong

Organizations

  • Boeing

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Base Pressure
  • Boundary Layer
  • Commercial Aircraft
  • Computational Fluid Dynamics
  • Flow
  • Flow Fields
  • Flow Visualization
  • Gas Turbine Nozzles
  • Hot Wire
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Secondary Flow
  • Static Pressure
  • Supersonic Transport Aircraft
  • Thrust Augmentation

Readers

  • Aerospace Engineering
  • Combustion Dynamics and Shock Wave Physics.