Design and Performance of Controlled-Diffusion Stator Compared with Original Double-Circular-Arc Stator

Abstract

The performance capabilities of a fan stator blade row having controlled-diffusion (CD) blade sections were compared with the performance capabilities of a fan stator blade row having double-circular-arc (DCA) blade sections. A CD stator with the same chord length but half the blades of the DCA stator was designed and tested. The same fan rotor (tip speed, 429 m/sec; pressure ratio, 1.64) was used with each stator row. The design and analysis for the CD stator is described. The overall stage and rotor performances with each stator are then compared along with selected stator blades element data. The CD stator efficiency drop (rotor minus stage efficiency, overall) was about one percentage point higher than for the DCA stator at or near design speed because of high losses in the hub region.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1989
Accession Number
ADA243616

Entities

People

  • James F. Schmidt
  • Kenneth L. Suder
  • Michael D. Hathaway
  • Thomas F. Gelder

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Axial Flow
  • Boundary Layer
  • Computational Fluid Dynamics
  • Fabrication
  • Flow Fields
  • Flow Visualization
  • Fluid Dynamics
  • Geometry
  • Leading Edges
  • Mach Number
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Static Pressure
  • Test Facilities
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Fault Tolerant Diagnosis of Black and White Balloon Isolation Tests Using ¥.
  • Mathematics or Statistics