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Finite difference grid generation by multivariate blending function interpolationThe General Interpolants Method (GIM) code which solves the multidimensional Navier-Stokes equations for arbitrary geometric domains is described. The geometry module in the GIM code generates two and three dimensional grids over specified flow regimes, establishes boundary condition information and computes finite difference analogs for use in the GIM code numerical solution module. The technique can be classified as an algebraic equation approach. The geometry package uses multivariate blending function interpolation of vector-values functions which define the shapes of the edges and surfaces bounding the flow domain. By employing blending functions which conform to the cardinality conditions the flow domain may be mapped onto a unit square (2-D) or unit cube (3-D), thus producing an intrinsic coordinate system for the region of interest. The intrinsic coordinate system facilitates grid spacing control to allow for optimum distribution of nodes in the flow domain.
Document ID
19810006182
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Anderson, P. G.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Spradley, L. W.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Publication Information
Publication: NASA. Langley Research Center Numerical Grid Generation Tech.
Subject Category
Numerical Analysis
Accession Number
81N14696
Funding Number(s)
CONTRACT_GRANT: NAS1-15795
CONTRACT_GRANT: NAS1-15783
CONTRACT_GRANT: NAS1-15341
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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