Investigation of Intake Ducts or a High Speed Subsonic Jet-Propelled Airplane

Abstract

Effects of roughness, size, and constructional features on efficiency and pressure loss are checked in two intake ducts of different area. Results indicate that larger internal passages increase efficiency. Poor finishing may decrease efficiency by as much as 50%, while spoilers may increase duct pressure los by 700%. Splitter vanes across duct, to insure rigidity, increase pressure loss by about 50%.

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Document Details

Document Type
Technical Report
Publication Date
Apr 23, 1947
Accession Number
ADA800556

Entities

People

  • Herbert N. Cohen

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Aeronautics
  • Air Flow
  • Aircrafts
  • Airplanes
  • Boundary Layer
  • Coefficients
  • Deficiencies
  • Duct Inlets
  • Dynamic Pressure
  • Engines
  • Flow Rate
  • Fuselages
  • Induction Systems
  • Sea Level
  • Standards
  • Static Pressure

Readers

  • Aerodynamics/Aeronautics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Systems Analysis and Design