Accession Number : ADA200436

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

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Holm, Chris L

PDF Url : ADA200436

Report Date : Sep 1988

Pagination or Media Count : 200

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)

Descriptors :   *INCOMPRESSIBLE FLOW, *INVISCID FLOW, *AERODYNAMIC LIFT, *WINGS, AERODYNAMIC CONFIGURATIONS, CAMBER, CIRCULATION, CODING, COMPUTATIONS, COMPUTER PROGRAMS, ELLIPSES, FLUID DYNAMICS, FORTRAN, GRAPHICS, GRIDS, AERODYNAMIC FORCES, AERODYNAMIC LOADING, TWIST(AERODYNAMICS), PRESSURE DISTRIBUTION, LOAD DISTRIBUTION, MATHEMATICAL MODELS, MODELS, PLANFORM, SEPARATION, SOLUTIONS(GENERAL), SOURCES, TABLES(DATA), THESES, USER MANUALS, VORTICES

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE