Nonlinear Two-Dimensional Sail Theory.

Abstract

Steady two-dimensional flow past a sail is considered. The sail is assumed to be supported by two masts. The flow and the shape of the sail are determined as functions of the direction alpha of the flow at infinity and the Weber number lambda. The full nonlinear problem is formulated as an integro-differential equation for the shape of the sail. This equation is discretized and solved numerically by Newton's method. Sail profiles, the slack in the sail, and the lift coefficient are presented for various values of alpha and lambda.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1981
Accession Number
ADA110450

Entities

People

  • Jean-marc Vanden-broeck

Organizations

  • University of Wisconsin–Madison

Tags

DTIC Thesaurus Topics

  • Air Force
  • Airfoils
  • Analytic Functions
  • Coefficients
  • Contracts
  • Differential Equations
  • Equations
  • Flow
  • Geometry
  • Leading Edges
  • Mathematics
  • Military Research
  • Numerical Analysis
  • Scientific Research
  • Two Dimensional
  • United States
  • Universities

Fields of Study

  • Mathematics

Readers

  • Aerospace Engineering
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Operations Research