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Three Dimensional Grid Generation For Geological Systems Application To Unsaturated Zone Modeling
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Book Synopsis Three Dimensional Grid Generation for Geological Systems, Application to Unsaturated Zone Modeling by : Charles Bubolu Haukwa
Download or read book Three Dimensional Grid Generation for Geological Systems, Application to Unsaturated Zone Modeling written by Charles Bubolu Haukwa and published by . This book was released on 1998 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-Dimensional Modeling with Geoscientific Information Systems by : A.K. Turner
Download or read book Three-Dimensional Modeling with Geoscientific Information Systems written by A.K. Turner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: A. K. TURNER Department of Geology and Geological Engineering Colorado School of Mines Golden, Colorado 80401 USA Geology deals with three-dimensional data. Geoscientists are concerned with three dimensional spatial observations, measurements, and explanations of a great variety of phenomena. The representation of three-dimensional data has always been a problem. Prior to computers, graphical displays involved specialized maps, cross-sections, fence diagrams, and geometrical constructions such as stereonets. All were designed to portray three-dimensional relationships on two-dimensional paper products, and all were time consuming to develop. Until recently, computers were of little assistance to three-dimensional data handling and representation problems. Memory was too expensive to handle the huge amounts of data required by three-dimensional assessments; computational speeds were too slow to perform the necessary calculations within a reasonable time; and graphical displays had too Iowa resolution or were much too expensive to produce useful visualizations. Much experience was gained with two-dimensional geographic information systems (GIS), which were applied to many land-use management and resource assessment problems. The two-dimensional GIS field matured rapidly in the late 1980's and became widely accepted. The advent of the modern computer workstation, with its enhanced memory and graphical capabilities at ever more affordable prices, has largely overcome these earlier constraints.
Book Synopsis Geological Applications of Automatic Grid Generation Tools for Finite Elements Applied to Porous Flow Modeling by :
Download or read book Geological Applications of Automatic Grid Generation Tools for Finite Elements Applied to Porous Flow Modeling written by and published by . This book was released on 1996 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction of grids that accurately reflect geologic structure and stratigraphy for computational flow and transport models poses a formidable task. Even with a complete understanding of stratigraphy, material properties, boundary and initial conditions, the task of incorporating data into a numerical model can be difficult and time consuming. Furthermore, most tools available for representing complex geologic surfaces and volumes are not designed for producing optimal grids for flow and transport computation. We have developed a modeling tool, GEOMESH, for automating finite element grid generation that maintains the geometric integrity of geologic structure and stratigraphy. The method produces an optimal (Delaunay) tetrahedral grid that can be used for flow and transport computations. The process of developing a flow and transport model can be divided into three parts: (1) Developing accurate conceptual models inclusive of geologic interpretation, material characterization and construction of a stratigraphic and hydrostratigraphic framework model, (2) Building and initializing computational frameworks; grid generation, boundary and initial conditions, (3) Computational physics models of flow and transport. Process (1) and (3) have received considerable attention whereas (2) has not. This work concentrates on grid generation and its connections to geologic characterization and process modeling. Applications of GEOMESH illustrate grid generation for two dimensional cross sections, three dimensional regional models, and adaptive grid refinement in three dimensions. Examples of grid representation of wells and tunnels with GEOMESH can be found in Cherry et al. The resulting grid can be utilized by unstructured finite element or integrated finite difference models.
Book Synopsis Development of Numerical Grids for UZ Flow and Transport Modeling by :
Download or read book Development of Numerical Grids for UZ Flow and Transport Modeling written by and published by . This book was released on 2001 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Analysis/Model Report (AMR) describes the methods used to develop numerical grids of the unsaturated hydrogeologic system beneath Yucca Mountain. Numerical grid generation is an integral part of the development of a complex, three-dimensional (3-D) model, such as the Unsaturated-Zone Flow and Transport Model (UZ Model) of Yucca Mountain. The resulting numerical grids, developed using current geologic, hydrogeologic, and mineralogic data, provide the necessary framework to: (1) develop calibrated hydrogeologic property sets and flow fields, (2) test conceptual hypotheses of flow and transport, and (3) predict flow and transport behavior under a variety of climatic and thermal loading conditions. Revision 00 of the work described herein follows the planning and work direction outlined in the ''Development of Numerical Grids for UZ Flow and Transport Modeling'' (CRWMS M & O 1999c). The technical scope, content, and management of ICN 01 of this AMR is currently controlled by the planning document, ''Technical Work Plan for Unsaturated Zone (UZ) Flow and Transport Process Model Report'' (BSC 2001a). The scope for the TBV resolution actions in this ICN is described in the ''Technical Work Plan for: Integrated Management of Technical Product Input Department'' (BSC 2001 b, Addendum B, Section 4.1). The steps involved in numerical grid development include: (1) defining the location of important calibration features, (2) determining model grid layers and fault geometry based on the Geologic Framework Model (GFM), the Integrated Site Model (ISM), and definition of hydrogeologic units (HGUs), (3) analyzing and extracting GFM and ISM data pertaining to layer contacts and property distributions, (4) discretizing and refining the two-dimensional (2-D), plan-view numerical grid, (5) generating the 3-D grid with finer resolution at the repository horizon and within the Calico Hills nonwelded (CHn) hydrogeologic unit, and (6) formulating the dual-permeability mesh. The products of grid development include a set of one-dimensional (1-D) vertical columns of gridblocks for hydrogeologic property set inversions, a 2-D UZ Model vertical cross-sectional grid for fault hydrogeologic property calibrations, a 3-D UZ Model grid for additional model calibrations, and a 3-D UZ Model grid for generating flow fields for Performance Assessment (PA).
Download or read book תעזיה written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Grid Generation for the Solution of Partial Differential Equations by : Institute for Computer Applications in Science and Engineering
Download or read book Grid Generation for the Solution of Partial Differential Equations written by Institute for Computer Applications in Science and Engineering and published by . This book was released on 1987 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1998 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis GRID2D/3D: A Computer Program for Generating Grid Systems in Complex-shaped Two- and Three-dimensional Spatial Domains. Part 1: Theory and Method by :
Download or read book GRID2D/3D: A Computer Program for Generating Grid Systems in Complex-shaped Two- and Three-dimensional Spatial Domains. Part 1: Theory and Method written by and published by . This book was released on 1990 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Automated Three-dimensional Unstructured Mesh Generation Algorithm for Groundwater Modeling by : James Edward Greer
Download or read book An Automated Three-dimensional Unstructured Mesh Generation Algorithm for Groundwater Modeling written by James Edward Greer and published by . This book was released on 2005 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a new method to create three-dimensional finite element meshes using the horizons to mesh algorithm. The algorithm uses available geologic data and user-defined inputs to guide the mesh generation process. This new approach allows for material layer pinch outs and many different layer refinement options to create well-formed elements that better represent hydrogeologic formations. Two case studies are presented that demonstrate the application of the algorithm[alpha]s options and capabilities. A graphical interface for the algorithm was developed in the Groundwater Modeling System.
Book Synopsis Three-dimensional Elliptic Grid Generation Technique with Application to Turbomachinery Cascades by :
Download or read book Three-dimensional Elliptic Grid Generation Technique with Application to Turbomachinery Cascades written by and published by . This book was released on 1988 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three Dimensional Grid Generation for Complex Configurations by : J. F. Thompson
Download or read book Three Dimensional Grid Generation for Complex Configurations written by J. F. Thompson and published by . This book was released on 1988 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This AGARDograph surveys some of the capabilities of the CFD community for griding complex three-dimensional configurations. The intent is to provide some insight as to the present state of grid generation for aircraft configurations in order to help assess whether this task presents a long term stumbling block to routine use of CFD in aerodynamic applications. This AGARDograph begins with a brief review of some of the techniques that are available for generating body-conforming curvilinear grids. In order to assess capabilities in grid generation, colleagues at selected institutions were solicited to describe their experiences and difficulties in grid generation of complex configurations. The intent here was not to describe the very latest in grid generation procedures, but to solicit honest comments about what are the difficulties in generating practical grids and what steps are taken to meet these difficulties. These experiences, which comprise the heart of this AGARDograph, are presented as case histories. Keywords: Computational fluid dynamics; Nato furnished; Aerodynamic configuration; Grids(coordinates); Computation; Computer graphics; Wing body configurations; Generating functions; Evaluation. (JHD).
Book Synopsis Surface Grid Generation for Complex Three-dimensional Geometries by : Raymond Ching-Chung Luh
Download or read book Surface Grid Generation for Complex Three-dimensional Geometries written by Raymond Ching-Chung Luh and published by . This book was released on 1988 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722905866 Total Pages :106 pages Book Rating :4.9/5 (58 download)
Book Synopsis A Package for 3-D Unstructured Grid Generation, Finite-Element Flow Solution and Flow Field Visualization by : National Aeronautics and Space Administration (NASA)
Download or read book A Package for 3-D Unstructured Grid Generation, Finite-Element Flow Solution and Flow Field Visualization written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: A set of computer programs for 3-D unstructured grid generation, fluid flow calculations, and flow field visualization was developed. The grid generation program, called VGRID3D, generates grids over complex configurations using the advancing front method. In this method, the point and element generation is accomplished simultaneously, VPLOT3D is an interactive, menudriven pre- and post-processor graphics program for interpolation and display of unstructured grid data. The flow solver, VFLOW3D, is an Euler equation solver based on an explicit, two-step, Taylor-Galerkin algorithm which uses the Flux Corrected Transport (FCT) concept for a wriggle-free solution. Using these programs, increasingly complex 3-D configurations of interest to aerospace community were gridded including a complete Space Transportation System comprised of the space-shuttle orbitor, the solid-rocket boosters, and the external tank. Flow solutions were obtained on various configurations in subsonic, transonic, and supersonic flow regimes. Parikh, Paresh and Pirzadeh, Shahyar and Loehner, Rainald Unspecified Center AEROSPACE INDUSTRY; COMPUTER PROGRAMS; FINITE ELEMENT METHOD; FLOW DISTRIBUTION; GRID GENERATION (MATHEMATICS); THREE DIMENSIONAL MODELS; ALGORITHMS; DIFFERENTIAL EQUATIONS; EXTERNAL TANKS; SOLID PROPELLANT ROCKET ENGINES; SPACE SHUTTLE BOOSTERS; SPACE TRANSPORTATION SYSTEM; SUBSONIC FLOW; SUPERSONIC FLOW; TRANSONIC FLOW...
Book Synopsis The Three-dimensional Multi-Block Advanced Grid Generation System (3DMAGGS) by : Stephen J. Alter
Download or read book The Three-dimensional Multi-Block Advanced Grid Generation System (3DMAGGS) written by Stephen J. Alter and published by . This book was released on 1993 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723139970 Total Pages :114 pages Book Rating :4.1/5 (399 download)
Book Synopsis Grid3d-V2 by : National Aeronautics and Space Administration (NASA)
Download or read book Grid3d-V2 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to generate good quality systems for complicated three-dimensional spatial domains, the grid-generation method used must be able to exert rather precise controls over grid-point distributions. Several techniques are presented that enhance control of grid-point distribution for a class of algebraic grid-generation methods known as the two-, four-, and six-boundary methods. These techniques include variable stretching functions from bilinear interpolation, interpolating functions based on tension splines, and normalized K-factors. The techniques developed in this study were incorporated into a new version of GRID3D called GRID3D-v2. The usefulness of GRID3D-v2 was demonstrated by using it to generate a three-dimensional grid system in the coolent passage of a radial turbine blade with serpentine channels and pin fins. Steinthorsson, E. and Shih, T. I-P. and Roelke, R. J. Glenn Research Center APPLICATIONS PROGRAMS (COMPUTERS); COMPUTATIONAL GRIDS; GRID GENERATION (MATHEMATICS); MATHEMATICAL MODELS; THREE DIMENSIONAL MODELS; ALGEBRA; BOUNDARIES; CUSPS (MATHEMATICS); FORTRAN; INTERPOLATION; SPLINE FUNCTIONS; TURBINE BLADES; TWO DIMENSIONAL MODELS...
Book Synopsis Three Dimensional Grid Generation for Complex Configurations - Recent Progress by :
Download or read book Three Dimensional Grid Generation for Complex Configurations - Recent Progress written by and published by . This book was released on 1988 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: This AGARDograph surveys some of the capabilities of the CFD community for griding complex three-dimensional configurations. The intent is to provide some insight as to the present state of grid generation for aircraft configurations in order to help assess whether this task presents a long term stumbling block to routine use of CFD in aerodynamic applications. This AGARDograph begins with a brief review of some of the techniques that are available for generating body-conforming curvilinear grids. In order to assess capabilities in grid generation, colleagues at selected institutions were solicited to describe their experiences and difficulties in grid generation of complex configurations. The intent here was not to describe the very latest in grid generation procedures, but to solicit honest comments about what are the difficulties in generating practical grids and what steps are taken to meet these difficulties. These experiences, which comprise the heart of this AGARDograph, are presented as case histories. Keywords: Computational fluid dynamics; Nato furnished; Aerodynamic configuration; Grids(coordinates); Computation; Computer graphics; Wing body configurations; Generating functions; Evaluation. (JHD).
Book Synopsis Three-dimensional Grid Generation Through Elliptic Partial Differential Equations by : Johnny P. Ziebarth
Download or read book Three-dimensional Grid Generation Through Elliptic Partial Differential Equations written by Johnny P. Ziebarth and published by . This book was released on 1983 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
