POWERING PERFORMANCE OF A VENTILATED PROPELLER

Abstract

IN AN EFFORT TO ACHIEVE SUPERCAVITATING PERFORMANCE AT RELATIVELY LOW SPEEDS, VENTILATION OF A SUPERCAVITATING (SC) propeller was investigated. Tests were run with a two-bladed SC propeller ventilated through holes in the propeller blades. The results of the tests show that ventilated propellers operate with a fully developed cavity at speeds too low for supercavitating operation. Powering performance was found to be dependent upon the cavitation index based on cavity pressure.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1961
Accession Number
AD0259919

Entities

People

  • Richard Hecker

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Flow
  • Air Supplies
  • Barometric Pressure
  • Dynamometers
  • Flow
  • Fluid Dynamics
  • Hydrodynamics
  • Measurement
  • Mechanics
  • Open Water
  • Pressure Measurement
  • Propeller Blades
  • Propellers
  • Reynolds Number
  • Schematic Diagrams
  • Vapor Pressure
  • Water Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Marine Propulsion Engineering and Naval Architecture