Accession Number : ADP005113

Title :   Flexible Grid Generation for Complex Geometries in Two Space Dimensions Based on Variational Principles,

Corporate Author : NATIONAL AEROSPACE LAB AMSTERDAM (NETHERLANDS)

Personal Author(s) : Oskam,B. ; Huizing,G. H.

Report Date : NOV 1986

Pagination or Media Count : 14

Abstract : A method is described that is suitable for the numerical generation of boundary conforming curvilinear coordinate systems. The method is based on the decomposition of a multiply connected domain into a number of simply connected zones. In each zone the grid is computed by solving a system of Euler equations that minimizes a functional of the unknown transformation functions. This system of equations and the natural boundary conditions of the minimization problem are discussed. A first illustration of this technique is given for the case of a three element airfoil.

Descriptors :   *BOUNDARY LAYER FLOW, *AIRFRAMES, *NUMERICAL ANALYSIS, GRIDS(COORDINATES), NAVIER STOKES EQUATIONS, VARIATIONAL METHODS, WEIGHTING FUNCTIONS

Distribution Statement : APPROVED FOR PUBLIC RELEASE