CALCULATION OF NON-LIFTING POTENTIAL FLOW ABOUT ARBITRARY THREE-DIMENSIONAL BODIES

Abstract

A method is described for calculating, with the aid of an electronic computer, the incompressible potential flow about arbitrary, non-lifting, three- dimensional bodies. The method utilizes a source density distribution on the surface of the body and solves for the distribution necessary to make the normal velocity zero on the boundary. Plane quadrilateral surface elements are used to approximate the body surface, and the integral equation for the surface source density is replaced by a set of linear algebraic equations for the values of the source density on each of the quadrilateral elements. After this set of equations has been solved, which is accomplished by a Seidel iterative procedure, the flow velocities at points both on and off the body surface are calculated. This approach is completely general. Bodies are not required to be slender, analytically defined, or simply connected.

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Document Details

Document Type
Technical Report
Publication Date
Mar 15, 1962
Accession Number
AD0282255

Entities

People

  • A. Matthew Smith
  • John L. Hess

Organizations

  • Douglas

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Air Force
  • Aircrafts
  • Computational Science
  • Coordinate Systems
  • Core Storage
  • Engineering
  • Froude Number
  • Geometric Forms
  • Geometry
  • Integral Equations
  • Jet Propulsion
  • Physics Laboratories
  • Pressure Distribution
  • Three Dimensional
  • Two Dimensional
  • United States Naval Academy

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Fluid Mechanics and Fluid Dynamics.
  • Graph Algorithms and Convex Optimization.

Technology Areas

  • Microelectronics