The Effect of External Shape Upon the Drag of a Scoop

Abstract

An investigation was undertaken to determine the cost of scoop installation on which principles of NACA cowling had been applied. These principles include nose shape of sufficient curvature to prevent breakaway over lip of duct and entrance large enough to insure small expansion loss. Several designs of ducts are presented in which nose and afterbody shapes were varied. Apparatus and tests are briefly described and results tabulated. A method of obtaining optimum scoop dimensions is also developed.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1947
Accession Number
ADB806063

Entities

People

  • I. Naiman
  • P. R. Hill

Organizations

  • National Advisory Committee for Aeronautics

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Afterbodies
  • Air Flow
  • Aircrafts
  • Airplanes
  • Bodies
  • Boundary Layer
  • Cooling
  • Curvature
  • Dynamic Pressure
  • Engines
  • Fluid Mechanics
  • Leading Edges
  • Oil Coolers
  • Pressure Distribution
  • Pressure Measurement
  • Static Pressure

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
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