VARIABLE GEOMETRY SHROUDED PROPELLER TEST PROGRAM. VOLUME 1. DATA ANALYSIS

Abstract

The shrouded propeller has long been recognized as an attractive means of augmenting propeller thrust at static and low-speed flight conditions. However, the shroud shape requirements for high static thrust are not compatible with the shape requirements for good high speed performance, and as a result, the current state-of-the-art shroud flight hardware designs are compromises between good high speed and static performance. This program presents test results on the extremes in shroud shape possible with a variable geometry shroud and thus permit the attainment of optimum shape under static and cruise flight conditions. These data, together with the data from Contract NOw-64-0707-d present the excursions in exit area ratio and lip shape possible with a variable geometry shroud and show that large performance gains can be made with such a shroud.

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Document Details

Document Type
Technical Report
Publication Date
May 08, 1968
Accession Number
AD0835089

Entities

People

  • Harry S. Wainauski

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Data Analysis
  • Diameters
  • Flight Speeds
  • Flow
  • Geometry
  • Leading Edges
  • Mach Number
  • Measurement
  • Pressure Distribution
  • Propellers
  • Shrouded Propellers
  • Static Pressure
  • Test Equipment
  • Test Facilities
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Combustion and Flow Dynamics.
  • Marine Hydrodynamics
  • Systems Analysis and Design