Accession Number:

AD0754429

Title:

The XYZ Potential Flow Program,

Descriptive Note:

Corporate Author:

NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD

Personal Author(s):

• Dawson,Charles W.
• Dean,Janet S.

Report Date:

1972-06-01

Pagination or Media Count:

69.0

Abstract:

The XYZ Potential Flow Program is a FORTRAN program which computes approximate solutions to problems of flow about three-dimensional bodies of arbitrary shape. The surface of the body is approximated by a set of plane quadrilaterals. The solution is constructed in terms of a source density on the surface of the body. The integral equation for the source density is approximated by a matrix equation on the assumption that the source density is constant in each quadrilateral. The matrix equation is solved by an iteration procedure. A problem with 500 quadrilaterals requires about 15 minutes of computer time when run with CDC 6400 processor. A detailed discussion of the preparation of the input and a sample problem are included. Additional routines which compute streamlines on or off the body are described. Author

Descriptors:

• (*FLUID FLOW
• *COMPUTER PROGRAMMING)
• PARTIAL DIFFERENTIAL EQUATIONS
• ITERATIONS
• SPHERES
• INTEGRAL EQUATIONS
• INCOMPRESSIBLE FLOW
• POTENTIAL THEORY

Subject Categories:

• Computer Programming and Software
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE