Three-Dimensional Flow through Highly-Loaded Axial Compressor Blade Rows.

Abstract

A method of describing three dimensional flows in highly-loaded turbomachines was discussed by using the azimuthally-average flow as a model of a rotor. The overall turning of the flow caused by the cascade was assumed to be large and the spanwise variation of the loading small. In this model the 'axisymmetric' flow was replaced by the pitchwise average of the rectilinear flow. Under these circumstances the reference flow could be correlated with the highly loaded model of rectilinear 'actuator disc', having a weak spanwise variation of the specified mean turning. They developed methods describing the three-dimensional flow as a perturbation of the aforementioned nonlinear two-dimensional 'reference flow'. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA071911

Entities

People

  • James E. Mccune

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Compressible Flow
  • Compressor Blades
  • Computational Fluid Dynamics
  • Fluid Dynamics
  • Fluid Flow
  • Gas Turbines
  • Hydrodynamics
  • Mach Number
  • Mechanical Phenomena
  • Perturbations
  • Radial Velocity
  • Stagnation Pressure
  • Static Pressure
  • Three Dimensional
  • Turbines

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Fluid Dynamics.