Propulsor Blade Flows

Abstract

The performance characteristics of a hydrodynamic propulsor are determined, to a large extent, by complex three-dimensional viscous flow in the blade rows. The ability to compute the complex flow field for use in the design and analysis of performance of a propulsor would be a valuable tool for improving performance. This research addressed computation of the steady flow field in shrouded propulsor blade rows. A prime consideration in the choice of a computation procedure is the multiplicity of length scales in the shrouded propulsor flow field that need to be adequately resolved. The differing dominant flow mechanisms at the hub and tip of the blade, blade boundary layers, and a core inviscid flow characterize the multiple length scales. The approach pursued under the present contract was to study the flow field in the tip and hub regions of the blade in separate tractable computations (zonal approach). Keywords: Propeller blades; Shrouded propellers.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA205663

Entities

People

  • R. Levy
  • S. J.. Shamroth
  • T. R. Govindan
  • W. R. Briley

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Blade Tips
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computations
  • Coordinate Systems
  • Differential Equations
  • Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Geometry
  • Navier Stokes Equations
  • Pressure Gradients
  • Secondary Flow
  • Stratified Fluids
  • Three Dimensional
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Fluid Dynamics.
  • Manufacturing Engineering.