A SIMPLIFIED ANALYSIS OF THE HYDROELASTIC IN STABILITY OF A THREE-DIMENSIONAL HYDROFOIL,

Abstract

The two-dimensional flutter equations of Theo dorsen are modified to approximate three-dimen sional circulation and virtual mass conditions. This is accomplished by multiplying the circula tion and virtual mass terms of the two-dimensional equations by appropriate factors. The circula tion factor is the ratio of the three-dimensional to the two-dimensional steady lift expressions. The virtual mass factor is the ratio of the three-dimensional to the two-dimensional virtual mass expressions. Results of the modified analy sis are compared with results obtained experi mentally for a foil with aspect ratio of 3.0 and analytically from the two-dimensional theory. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1963
Accession Number
AD0416407

Entities

People

  • Michael E. Mccormick

Tags

DTIC Thesaurus Topics

  • Aspect Ratio
  • Equations
  • Geometry
  • Hydrofoils
  • Mathematics
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Marine Propulsion Engineering and Naval Architecture
  • Snow Cover Descriptors for Reptiles and Their Illustrations.