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A Simplified Self Adaptive Grid Method Sage
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722030308 Total Pages :50 pages Book Rating :4.0/5 (33 download)
Book Synopsis A Simplified Self-Adaptive Grid Method, Sage by : National Aeronautics and Space Administration (NASA)
Download or read book A Simplified Self-Adaptive Grid Method, Sage written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-28 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The formulation of the Self-Adaptive Grid Evolution (SAGE) code, based on the work of Nakahashi and Deiwert, is described in the first section of this document. The second section is presented in the form of a user guide which explains the input and execution of the code, and provides many examples. Application of the SAGE code, by Ames Research Center and by others, in the solution of various flow problems has been an indication of the code's general utility and success. Although the basic formulation follows the method of Nakahashi and Deiwert, many modifications have been made to facilitate the use of the self-adaptive grid method for single, zonal, and multiple grids. Modifications to the methodology and the simplified input options make this current version a flexible and user-friendly code. Davies, C. and Venkatapathy, E. Ames Research Center RTOP 506-40-11...
Book Synopsis A Simplified Self-adaptive Grid Method, SAGE by :
Download or read book A Simplified Self-adaptive Grid Method, SAGE written by and published by . This book was released on 1989 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722818487 Total Pages :78 pages Book Rating :4.8/5 (184 download)
Book Synopsis The Multidimensional Self-Adaptive Grid Code, Sage by : National Aeronautics and Space Administration (NASA)
Download or read book The Multidimensional Self-Adaptive Grid Code, Sage 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 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the multidimensional self-adaptive grid code SAGE. A two-dimensional version of this code was described in an earlier report by the authors. The formulation of the multidimensional version is described in the first section of this document. The second section is presented in the form of a user guide that explains the input and execution of the code and provides many examples. Successful application of the SAGE code in both two and three dimensions for the solution of various flow problems has proven the code to be robust, portable, and simple to use. Although the basic formulation follows the method of Nakahashi and Deiwert, many modifications have been made to facilitate the use of the self-adaptive grid method for complex grid structures. Modifications to the method and the simplified input options make this a flexible and user-friendly code. The new SAGE code can accommodate both two-dimensional and three-dimensional flow problems. Davies, Carol B. and Venkatapathy, Ethiraj Ames Research Center...
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722818654 Total Pages :74 pages Book Rating :4.8/5 (186 download)
Book Synopsis The Multidimensional Self-Adaptive Grid Code, Sage, Version 2 by : National Aeronautics and Space Administration (NASA)
Download or read book The Multidimensional Self-Adaptive Grid Code, Sage, Version 2 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 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new report on Version 2 of the SAGE code includes all the information in the original publication plus all upgrades and changes to the SAGE code since that time. The two most significant upgrades are the inclusion of a finite-volume option and the ability to adapt and manipulate zonal-matching multiple-grid files. In addition, the original SAGE code has been upgraded to Version 1.1 and includes all options mentioned in this report, with the exception of the multiple grid option and its associated features. Since Version 2 is a larger and more complex code, it is suggested (but not required) that Version 1.1 be used for single-grid applications. This document contains all the information required to run both versions of SAGE. The formulation of the adaption method is described in the first section of this document. The second section is presented in the form of a user guide that explains the input and execution of the code. The third section provides many examples. Successful application of the SAGE code in both two and three dimensions for the solution of various flow problems has proven the code to be robust, portable, and simple to use. Although the basic formulation follows the method of Nakahashi and Deiwert, many modifications have been made to facilitate the use of the self-adaptive grid method for complex grid structures. Modifications to the method and the simple but extensive input options make this a flexible and user-friendly code. The SAGE code can accommodate two-dimensional and three-dimensional, finite-difference and finite-volume, single grid, and zonal-matching multiple grid flow problems. Davies, Carol B. and Venkatapathy, Ethiraj Ames Research Center...
Book Synopsis SAGE: The Self-Adaptive Grid Code by :
Download or read book SAGE: The Self-Adaptive Grid Code written by and published by . This book was released on 1999 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Multidimensional Self-adaptive Grid Code, SAGE by :
Download or read book The Multidimensional Self-adaptive Grid Code, SAGE written by and published by . This book was released on 1992 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Application of a Self-adaptive Grid Method to Complex Flows by :
Download or read book Application of a Self-adaptive Grid Method to Complex Flows written by and published by . This book was released on 1989 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sage written by Carol B. Davies and published by BiblioGov. This book was released on 2013-08 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The multi-dimensional self-adaptive grid code, SAGE, is an important tool in the field of computational fluid dynamics (CFD). It provides an efficient method to improve the accuracy of flow solutions while simultaneously reducing computer processing time. Briefly, SAGE enhances an initial computational grid by redistributing the mesh points into more appropriate locations. The movement of these points is driven by an equal-error-distribution algorithm that utilizes the relationship between high flow gradients and excessive solution errors. The method also provides a balance between clustering points in the high gradient regions and maintaining the smoothness and continuity of the adapted grid, The latest version, Version 3, includes the ability to change the boundaries of a given grid to more efficiently enclose flow structures and provides alternative redistribution algorithms.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720713074 Total Pages :72 pages Book Rating :4.7/5 (13 download)
Book Synopsis Sage by : National Aeronautics and Space Administration (NASA)
Download or read book Sage written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-04 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The multi-dimensional self-adaptive grid code, SAGE, is an important tool in the field of computational fluid dynamics (CFD). It provides an efficient method to improve the accuracy of flow solutions while simultaneously reducing computer processing time. Briefly, SAGE enhances an initial computational grid by redistributing the mesh points into more appropriate locations. The movement of these points is driven by an equal-error-distribution algorithm that utilizes the relationship between high flow gradients and excessive solution errors. The method also provides a balance between clustering points in the high gradient regions and maintaining the smoothness and continuity of the adapted grid, The latest version, Version 3, includes the ability to change the boundaries of a given grid to more efficiently enclose flow structures and provides alternative redistribution algorithms.Davies, Carol B. and Venkatapathy, EthirajAmes Research CenterCOMPUTATIONAL GRIDS; GRID GENERATION (MATHEMATICS); MULTIGRID METHODS; FINITE VOLUME METHOD; MATHEMATICAL MODELS; THREE DIMENSIONAL MODELS; COMPUTATIONAL FLUID DYNAMICS; ALGORITHMS; COMPUTER PROGRAMS; COMPUTER SYSTEMS PROGRAMS; GRADIENTS; ERROR ANALYSIS
Book Synopsis The Multidimensional Self-Adaptive Grid Code, SAGE, Version 2 by :
Download or read book The Multidimensional Self-Adaptive Grid Code, SAGE, Version 2 written by and published by . This book was released on 1995 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Tech Briefs written by and published by . This book was released on 1992 with total page 1486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722096229 Total Pages :24 pages Book Rating :4.0/5 (962 download)
Book Synopsis Application of a Self-Adaptive Grid Method to Complex Flows by : National Aeronautics and Space Administration (NASA)
Download or read book Application of a Self-Adaptive Grid Method to Complex Flows written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-30 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A directional-split, modular, user-friendly grid point distribution code is applied to several test problems. The code is self-adaptive in the sense that grid point spacing is determined by user-specified constants denoting maximum and minimum grid spacings and constants relating the relative influence of smoothness and orthogonality. Estimates of truncation error, in terms of flow-field gradients and/or geometric features, are used to determine the point distribution. Points are redistributed along grid lines in a specified direction in an elliptic manner over a user-specified subdomain, while orthogonality and smoothness are controlled in a parabolic (marching) manner in the remaining directions. Multidirectional adaption is achieved by sequential application of the method in each coordinate direction. The flow-field solution is redistributed onto the newly distributed grid points after each unidirectional adaption by a simple one-dimensional interpolation scheme. For time-accurate schemes such interpolation is not necessary and time-dependent metrics are carried in the fluid dynamic equations to account for grid movement. Deiwert, G. S. and Venkatapathy, E. and Davies, C. and Djomehri, J. and Abrahamson, K. Ames Research Center RTOP 506-40-11...
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 31st Aerospace Sciences Meeting and Exhibit: 93-0500 - 93-0539 by :
Download or read book 31st Aerospace Sciences Meeting and Exhibit: 93-0500 - 93-0539 written by and published by . This book was released on 1993 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional Self-adaptive Grid Method for Complex Flows by :
Download or read book Three-dimensional Self-adaptive Grid Method for Complex Flows written by and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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