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There are a total of 12 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Multilevel elliptic smoothing of large three-dimensional grids
Author(s): Mastin, C. Wayne
Abstract: Elliptic grid generation methods have been used for many years to smooth and improve grids generated by algebraic interpolation schemes. However, the elliptic system that must be solved is nonlinear and convergence is ...
NASA Center: Langley Research Center
Publication Year: 1995
Added to NTRS: 2008-06-02
Accession Number: 95N28765; Document ID: 19950022344
Arc Length Based Grid Distribution For Surface and Volume Grids
Author(s): Mastin, C. Wayne
Abstract: Techniques are presented for distributing grid points on parametric surfaces and in volumes according to a specified distribution of arc length. Interpolation techniques are introduced which permit a given distribution of ...
NASA Center: Langley Research Center
Publication Year: 1996
Added to NTRS: 2008-06-02
Document ID: 20040110433
Application of three-dimensional Bezier patches in grid generation
Author(s): Mastin, C. Wayne
Abstract: Bezier and B-spline patches are popular tools in surface modeling. With these methods, a surface is represented by the tensor product of univariate approximations. The extension of this concept to three-dimensions is obvious ...
NASA Center: Marshall Space Flight Center
Publication Year: 1992
Added to NTRS: 2008-06-01
Accession Number: 92N24431; Document ID: 19920015188
Transformation of two and three-dimensional regions by elliptic systems
Author(s): Mastin, C. Wayne; Thompson, Joe F.
Abstract: Grid smoothing and orthogonalization procedures were developed and implemented in the construction of two and three dimensional grids. The procedures are based on the variational methods of grid generation. The ...
NASA Center: Marshall Space Flight Center
Publication Year: 1986
Added to NTRS: 2005-10-13
Accession Number: 87N27457; Document ID: 19870018024; Report Number: NAS 1.26:180323, NASA-CR-180323
Application of three-dimensional Bezier patches in grid generation
Author(s): Mastin, C. Wayne
Abstract: Bezier and B-spline patches are popular tools in surface modeling. With these methods, a surface is represented by the tensor product of univariate approximations. The extension of this concept to three dimensions is obvious ...
NASA Center: Marshall Space Flight Center
Publication Year: 1990
Added to NTRS: 2005-08-25
Accession Number: 92N24350; Document ID: 19920015107; Report Number: NAS 1.26:189000, NASA-CR-189000
Transformation of two and three-dimensional regions by elliptic systems
Author(s): Mastin, C. Wayne
Abstract: During this contract period, our work has focused on improvements to elliptic grid generation methods. There are two principle objectives in this project. One objective is to make the elliptic methods more reliable and ...
NASA Center: Marshall Space Flight Center
Publication Year: 1993
Added to NTRS: 2005-08-25
Accession Number: 93N25669; Document ID: 19930016480; Report Number: NAS 1.26:192955, NASA-CR-192955
Transformation of two and three-dimensional regions by elliptic systems
Author(s): Mastin, C. Wayne
Abstract: Several reports are attached to this document which contain the results of our research at the end of this contract period. Three of the reports deal with our work on generating surface grids. One is a preprint of a paper ...
NASA Center: Marshall Space Flight Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 94N33049; Document ID: 19940028543; Report Number: NAS 1.26:195849, NASA-CR-195849
Interface procedures for overlapping grids
Author(s): Mastin, C. Wayne
Abstract: The solution of partial differential equations by means of either implicit or conservative explicit finite-difference methods, on the one hand, or multicomponent overlapping grid schemes on the other, is presently subjected ...
NASA Center: Marshall Space Flight Center
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 88A26742; Document ID: 19880039515
Transformation of two and three-dimensional regions by elliptic systems
Author(s): Mastin, C. Wayne
Abstract: A reliable linear system is presented for grid generation in 2-D and 3-D. The method is robust in the sense that convergence is guaranteed but is not as reliable as other nonlinear elliptic methods in generating nonfolding ...
NASA Center: Marshall Space Flight Center
Publication Year: 1991
Added to NTRS: 2004-11-03
Accession Number: 92N10170; Document ID: 19920000952; Report Number: NAS 1.26:188982, NASA-CR-188982
Implicit finite difference methods on composite grids
Author(s): Mastin, C. Wayne
Abstract: Techniques for eliminating time lags in the implicit finite-difference solution of partial differential equations are investigated analytically, with a focus on transient fluid dynamics problems on overlapping multicomponent ...
NASA Center: Marshall Space Flight Center
Publication Year: 1987
Added to NTRS: 2004-11-03
Accession Number: 88A20025; Document ID: 19880032798
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