VARIABLE GEOMETRY SHROUDED PROPELLER TEST PROGRAM. VOLUME 2. TEST DATA

Abstract

Wind tunnel tests of variable geometry shrouded propeller models were conducted in the 18-ft and 8-ft test sections of the UARL Large Subsonic Wind Tunnel. The test model comprised a shroud propeller assembly which was attached to a propeller dynamometer through strain gage balances. The balances provided shroud chord force, propeller thrust and propeller torque data. Various pressure measurements were also obtained including shroud inlet pitot-static pressures, shroud exit total pressures, shroud surface pressure distributions, and velocity-angularity radial traverse probe data. These data were obtained for three shroud configurations and two sets of propellers. Shroud variables included lip contour, length and exit area; propeller variables included blade planform and blade-shroud tip clearance. Test data for these model configurations were obtained through ranges of blade rotational speed at various blade pitch angles and at tunnel Mach numbers from 0.02 to 0.60.

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Document Details

Document Type
Technical Report
Publication Date
May 08, 1968
Accession Number
AD0835090

Entities

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Barometric Pressure
  • Data Reduction
  • Load Cells
  • Measurement
  • Performance Tests
  • Plastic Explosives
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Rdx
  • Shrouded Propellers
  • Static Pressure
  • Strain Gages
  • Test And Evaluation
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.