Effective Inflow Velocities into a Propeller Operating in an Axisymmetric Shear Flow.

Abstract

An analysis and computer code are presented to calculate the effective wake fraction for a propeller in a non-uniform free wake. The existence of an effective wake has been known for a long time, but the rational theory presented here seems to have eluded all previous investigators. The simple formula developed herein to calculate the effective wake requires knowledge only of the nominal wake and the load distribution on the propeller. Since both the nominal wake and the load distribution are ordinarily given in the design problem, this information suffices to calculate the effective wake for a given design once and for all. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1980
Accession Number
ADA103570

Entities

People

  • Daniel T. Valentine
  • Theodore R. Goodman

Organizations

  • Stevens Institute of Technology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Axisymmetric
  • Bessel Functions
  • Boundary Layer
  • Coefficients
  • Computational Science
  • Computer Programs
  • Computers
  • Differential Equations
  • Equations
  • Hydromechanics
  • Integrals
  • Load Distribution
  • Measurement
  • Molecular Dynamics
  • Procedures (Computers)
  • Shear Flow
  • Stratified Fluids

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Calculus or Mathematical Analysis
  • Fluid Mechanics and Fluid Dynamics.