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Multitasked Embedded Multigrid For Three Dimensional Flow Simulation
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Book Synopsis Multitasked Embedded Multigrid for Three-Dimensional Flow Simulation by : Gary M. Johnson
Download or read book Multitasked Embedded Multigrid for Three-Dimensional Flow Simulation written by Gary M. Johnson and published by . This book was released on 1986 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project explored fast algorithms for Euler and Navier Stokes simulations. A particular issue pursued under the grant was the integration of an explicit three dimensional flow solver, embedded mesh refinements, a model equation hierarchy, multiple grid acceleration and extensive rectorization and multi tasking. Several papers were produced during this effort including such titles as 'Multitasked embedded multigrid for three-dimensional flow simulation' and 'Multigrid approaches to the Euler equations'. An efficient algorithm designed to be used for Navier stokes simulations of complex flows over complete configurations is described. The algorithm incorporates a number of elements, including an explicit three-dimensional flow solver, embedded mesh refinements, a model equation hierarchy ranging from the Euler equations through the full Navier-Stokes equations, multiple-grid convergence acceleration and extensive vectorization and multitasking for efficient execution on parallel processing supercomputers. Results are presented for a preliminary trial of the method on a problem representative of turbomachinery applications. Based on this performance data, it is estimated that a mature implementation of the algorithm will yield overall speedups ranging as high as 100.
Book Synopsis Multigrid Methods for Flow Transition in Three-dimensional Boundary Layers with Surface Roughness by : Chaoqun Liu
Download or read book Multigrid Methods for Flow Transition in Three-dimensional Boundary Layers with Surface Roughness written by Chaoqun Liu and published by . This book was released on 1993 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multigrid Methods by : Stephen F. McCormick
Download or read book Multigrid Methods written by Stephen F. McCormick and published by SIAM. This book was released on 1987-12-01 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thoughtful consideration of the current level of development of multigrid methods, this volume is a carefully edited collection of papers that addresses its topic on several levels. The first three chapters orient the reader who is familiar with standard numerical techniques to multigrid methods, first by discussing multigrid in the context of standard techniques, second by detailing the mechanics of use of the method, and third by applying the basic method to some current problems in fluid dynamics. The fourth chapter provides a unified development, complete with theory, of algebraic multigrid (AMG), which is a linear equation solver based on multigrid principles. The last chapter is an ambitious development of a very general theory of multigrid methods for variationally posed problems. Included as an appendix is the latest edition of the Multigrid Bibliography, an attempted compilation of all existing research publications on multigrid.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723219436 Total Pages :152 pages Book Rating :4.2/5 (194 download)
Book Synopsis Multigrid Methods for Flow Transition in Three-Dimensional Boundary Layers with Surface Roughness by : National Aeronautics and Space Administration (NASA)
Download or read book Multigrid Methods for Flow Transition in Three-Dimensional Boundary Layers with Surface Roughness written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficient multilevel adaptive method has been successfully applied to perform direct numerical simulations (DNS) of flow transition in 3-D channels and 3-D boundary layers with 2-D and 3-D isolated and distributed roughness in a curvilinear coordinate system. A fourth-order finite difference technique on stretched and staggered grids, a fully-implicit time marching scheme, a semi-coarsening multigrid method associated with line distributive relaxation scheme, and an improved outflow boundary-condition treatment, which needs only a very short buffer domain to damp all order-one wave reflections, are developed. These approaches make the multigrid DNS code very accurate and efficient. This allows us not only to be able to do spatial DNS for the 3-D channel and flat plate at low computational costs, but also to do spatial DNS for transition in the 3-D boundary layer with 3-D single and multiple roughness elements, which would have extremely high computational costs with conventional methods. Numerical results show good agreement with the linear stability theory, the secondary instability theory, and a number of laboratory experiments. The contribution of isolated and distributed roughness to transition is analyzed. Liu, Chaoqun and Liu, Zhining and Mccormick, Steve Unspecified Center BASE FLOW; BOUNDARY LAYER TRANSITION; CHANNEL FLOW; COMPUTATIONAL FLUID DYNAMICS; GRID GENERATION (MATHEMATICS); MULTIGRID METHODS; SURFACE ROUGHNESS; THREE DIMENSIONAL BOUNDARY LAYER; BOUNDARY CONDITIONS; FINITE DIFFERENCE THEORY; NAVIER-STOKES EQUATION; SPHERICAL COORDINATES; THREE DIMENSIONAL FLOW; TIME MARCHING; TWO DIMENSIONAL FLOW...
Book Synopsis Multigrid Direct Numerical Simulation of the Whole Process of Flow Transition in 3-D Boundary Layers by :
Download or read book Multigrid Direct Numerical Simulation of the Whole Process of Flow Transition in 3-D Boundary Layers written by and published by . This book was released on 1993 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional Unsteady Incompressible Flow Calculations Using Multigrid by : Andrey Belov
Download or read book Three-dimensional Unsteady Incompressible Flow Calculations Using Multigrid written by Andrey Belov and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Multigrid Method for Three-dimensional Steady and Time-resolved Viscous Free Surface Flows by : Geoffrey W. Cowles
Download or read book A Multigrid Method for Three-dimensional Steady and Time-resolved Viscous Free Surface Flows written by Geoffrey W. Cowles and published by . This book was released on 2001 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional High-lift Analysis Using a Parallel Unstructured Multigrid Solver by : Dimitri J. Mavriplis
Download or read book Three-dimensional High-lift Analysis Using a Parallel Unstructured Multigrid Solver written by Dimitri J. Mavriplis and published by . This book was released on 1998 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional Overlapping Grids and Multigrid Methods for Flow Calculations in Complex IC Engine Geometries by : Jiyuan Tu
Download or read book Three-dimensional Overlapping Grids and Multigrid Methods for Flow Calculations in Complex IC Engine Geometries written by Jiyuan Tu and published by . This book was released on 1992 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development and Validation of a Three-dimensional Multiblock, Multigrid Flow Solver for External and Internal Flows by : H. M. Tsai
Download or read book The Development and Validation of a Three-dimensional Multiblock, Multigrid Flow Solver for External and Internal Flows written by H. M. Tsai and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A geometric multigrid method for space-time finite element discretizations of the Navier-Stokes equations and its application to 3d flow simulation by : Mathias Anselmann
Download or read book A geometric multigrid method for space-time finite element discretizations of the Navier-Stokes equations and its application to 3d flow simulation written by Mathias Anselmann and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Multigrid and Upwind Viscous Flow Solver on 3-D Embedded and Overlapped Grids by : Oktay Baysal
Download or read book A Multigrid and Upwind Viscous Flow Solver on 3-D Embedded and Overlapped Grids written by Oktay Baysal and published by . This book was released on 1989 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Nonlinear Multigrid Method for Threedimensional Transonic Potential Flow by : Adriaan J. van der Wees
Download or read book A Nonlinear Multigrid Method for Threedimensional Transonic Potential Flow written by Adriaan J. van der Wees and published by . This book was released on 1988 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Scalable Parallel Multigrid Solver for Three Dimensional Adaptive Mesh Structural Analysis by : Nathan Karl Crane
Download or read book A Scalable Parallel Multigrid Solver for Three Dimensional Adaptive Mesh Structural Analysis written by Nathan Karl Crane and published by . This book was released on 2002 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 1684 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 1992 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parallel Algorithms for Matrix Computations by : K. Gallivan
Download or read book Parallel Algorithms for Matrix Computations written by K. Gallivan and published by SIAM. This book was released on 1990-01-01 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematics of Computing -- Parallelism.
