Discretization formulas for unstructured gridsThe Galerkin weighted residual technique using linear triangular weight functions is employed to develop finite difference formula in cartesian coordinates for the Laplacian operator, first derivative operators and the function for unstructured triangular grids. The weighted residual coefficients associated with the weak formulation of the Laplacian operator are shown to agree with the Taylor series approach on a global average. In addition, a simple algorithm is presented to determine the Voronoi (finite difference) area of an unstructured grid.
Document ID
19900039480
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Baumeister, Kenneth J. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Numerical Analysis
Meeting Information
Meeting: Intl. Conference on Numerical Grid Generation in Computational Fluid Mechanics ''88