Calculation of Potential Flow About Arbitrary Three-Dimensional Lifting Bodies

Abstract

The report presents a complete discussion of a method for calculating potential flow about arbitrary lifting three-dimensional bodies without the approximations inherent in lifting-surface theories. The basic formulation of three-dimensional lifting flow is pursued at some length and some difficulties are pointed out. All aspects of the flow calculation method are discussed, and alternate procedures for various aspects of the calculation are compared and evaluated. Particular emphasis is placed on the handling of the bound vorticity and the application of the Kutta condition, and it is concluded that the approach used in the method of this report has certain advantages over alternate schemes used by other existing methods. A considerable number of calculated results for various configurations are presented to illustrate the power and scope of the method.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1972
Accession Number
AD0755480

Entities

People

  • John L. Hess

Organizations

  • Douglas

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Configurations
  • Aircrafts
  • Computers
  • Coordinate Systems
  • Equations
  • Experimental Data
  • External Stores
  • Far Field
  • Geometry
  • Lifting Bodies
  • Near Field
  • Pressure Distribution
  • Step Functions
  • Trailing Edges
  • Trailing Vortices
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Dynamics.
  • Systems Analysis and Design