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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.
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.
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1988 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Fluid Dynamics by : Graham de Vahl Davis
Download or read book Computational Fluid Dynamics written by Graham de Vahl Davis and published by North Holland. This book was released on 1988 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recorded in this book is recent research on the development of efficient computational techniques and their application to fluid-flow problems of engineering and scientific importance. It contains invited and contributed papers in the following general research areas: Boundary Layer Flow, Combustion and Chemically Reacting Flows, Free Surface Flows, Geophysical Flows, Inviscid Flow, Meteorological Flows, Non-Newtonian Flow, Numerical Methods and Analysis, Porous Media, Separated Flow, Shallow Water Problems, Shock Wave Interactions, Stability and Transition, Supercomputers, Supersonic and Transonic Flow, Thermal Convection, Turbulent Flows and Modelling, Viscous Flow and Vortex Flow.
Book Synopsis Proceedings of the Summer Computer Simulation Conference by :
Download or read book Proceedings of the Summer Computer Simulation Conference written by and published by . This book was released on 1987 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supercomputing written by and published by . This book was released on 1987 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the ... International Conference on Finite Element Methods in Flow Problems by :
Download or read book Proceedings of the ... International Conference on Finite Element Methods in Flow Problems written by and published by . This book was released on 1989 with total page 1624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Parallel Processing in Fluid Mechanics by : Oktay Baysal
Download or read book Applications of Parallel Processing in Fluid Mechanics written by Oktay Baysal and published by . This book was released on 1987 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Aerodynamic Simulation Program Long Haul Communications Prototype by :
Download or read book Numerical Aerodynamic Simulation Program Long Haul Communications Prototype written by and published by . This book was released on 1987 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Bibliography on Parallel and Vector Numerical Algorithms by : James M. Ortega
Download or read book A Bibliography on Parallel and Vector Numerical Algorithms written by James M. Ortega and published by . This book was released on 1988 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1988 with total page 1428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.
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 Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 1300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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...
