Vortex Interactions in a Propeller Wake

Abstract

This report concerns the kinematics of the motion of trailing vortex sheets in the wake of a propeller and the dynamics of the tip vortex. The problem is solved numerically for a lifting line wing model and the results applied to propeller theory. Special consideration is given to the subjects of tip vortex cavitation, changes in loading on a blade due to rollup of the trailing vortex sheet, and the trajectory of the tip vortex. Experimental confirmation was obtained for the pressure at which cavitation appeared and the motion of the vortex sheet through testing a hydrofoil in a propeller tunnel.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0844459

Entities

People

  • Damon E. Cummings

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Computations
  • Computer Programs
  • Engineering
  • Equations
  • Geometry
  • Hydrodynamics
  • Lifting Surfaces
  • Marine Engineering
  • Marine Propellers
  • Mechanical Properties
  • Naval Architecture
  • Photographs
  • Pressure Distribution
  • Pressure Gradients
  • Radial Velocity

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerodynamics/Aeronautics.
  • Structural Dynamics.