WINDMILLING AND LOCKED SHAFT PERFORMANCE OF SUPERCAVITATING PROPELLERS,

Abstract

Open-water tests of several supercavitating propellers windmilling and nonrotating are presented. The tests are all at high cavitation indices. The windmilling operation is shown to be an extension of the powered performance at high speed coefficients. Both the thrust and torque are negative in this area of operation. Locked shaft (nonrotating) data are presented and the thrust and torque are shown to be dependent upon the size of the propeller and its projected area, but more or less independent of section shape. Judicious use of airfoil data confirms these results. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1962
Accession Number
AD0282181

Entities

People

  • Richard Hecker

Tags

DTIC Thesaurus Topics

  • Autorotation
  • Cavitation
  • Coefficients
  • Engineering
  • Marine Propellers
  • Mechanical Engineering
  • Open Water
  • Propellers
  • Propulsion Systems
  • Supercavitating Propellers
  • Water

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Inertial Navigation Systems.
  • Regression Analysis.