Cavity Shape Characteristics for Supercavitating Hydrofoils.

Abstract

In this work the problem of a supercavitating hydrofoil in linear theory is stated in terms of integral equations of unknown vortex and cavity source distributions. The general problem is composed into the camber, the thickness and the angle of attack problems. For each problem the solution is expressed in terms of integrals of the slope of the lower surface of the hydrofoil weighted by known functions. The numerical scheme to compute those integrals has been proved very accurate and insensitive to the variables of the problem. As an application, tables and some cavity plots are given for the NACA a=0.8 meanline series and the NACA Four-digit Wing Sections thickness forms. Keywords: Cavitation; Cavity shape.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA157299

Entities

People

  • Spyros A. Kinnas

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Cavitation
  • Coefficients
  • Coordinate Systems
  • Decomposition
  • Engineering
  • Equations
  • Free Stream
  • Geometry
  • Hydrofoils
  • Integral Equations
  • Integrals
  • Leading Edges
  • Numerical Analysis
  • Numerical Integration
  • Thickness
  • Trailing Edges

Readers

  • Aerodynamics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Marine Propulsion Engineering and Naval Architecture