Aerodynamic Performance of Wings of Arbitrary Planform in Inviscid, Incompressible, Irrotational Flow.

Abstract

This thesis contains discussion, theory and program code for a computational fluid dynamics (CFD) model of a wing of arbitrary planform. The mathematical model assumes incompressible, inviscid, irrotational flow. The program computes forces acting on the wing by modeling the flow with a set of horseshoe vortex elements. It models the flow over an arbitrary wing using two solutions. One solution is the ideal lift, associated with a cambered and twisted wing. The other solution is the additional lift associated with a flat wing. The program computes wing camber and twist using an elliptic loading distribution. The thesis includes the FORTRAN source code, a separable user's manual for the VORTEX program, discussion of the theory applied in the model, and instructions for operating the program. It shows a sample wing planform with tabular and graphic results. Two other CFD models are also discussed, based on circulation and pressure difference, along with some of the problems and solutions in grid generation. Keywords: Horseshoe vortices; Inviscid incompressible flow; Irrotational flow; Computer programs. Theses. (edc)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1988
Accession Number
ADA200436

Entities

People

  • Chris L. Holm

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Computer Programs
  • Computers
  • Elements
  • Fluid Dynamics
  • Fluid Mechanics
  • Load Distribution
  • Mainframe Computers
  • Mathematical Models
  • Mechanics
  • New York
  • Planform
  • Pressure Distribution
  • Students
  • United States Naval Academy

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Computational Fluid Dynamics (CFD)
  • Computer Science.