SUPERCAVITATING PROPELLER THEORY. PART I. THE DERIVATION OF INDUCED VELOCITY EQUATIONS AND FORMULATION OF AN INITIAL DESIGN PROCEDURE.

Abstract

Induced velocity equations are presented for supercavitating propellers along with a pressure equation. Blade loading is represented by a pressure doublet distribution and the blade cavity by a pressure source distribution. Subsequently, the pressure doublet distribution is transposed to the more familiar bound and free vorticity distribution. Lifting surface equations are presented for the case of induced advance ratio as a function of radius but attention is focused on the case of constant induced advance ratio. A simplified model is proposed where loading is considered to be concentrated along a line, i.e., the lifting line. For the case of constant induced advance ratio, an initial design procedure is formulated which incorporates the simplified model. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1966
Accession Number
AD0629735

Entities

People

  • Geoffrey G. Cox

Tags

DTIC Thesaurus Topics

  • Engineering
  • Equations
  • Lifting Surfaces
  • Marine Propellers
  • Mechanical Engineering
  • Pressure Distribution
  • Propellers
  • Supercavitating Propellers
  • Surfaces

Readers

  • Aerospace Engineering
  • Fluid Dynamics.