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  • RPI SCOREC - PUMI LICENSE
    materials provided with the distribution Neither the name of the SCOREC RPI nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    Original URL path: http://www.scorec.rpi.edu/pumi/pumi_license.php (2015-07-15)
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  • RPI SCOREC - PUMI Documents
    Rensselaer Polytechnic Institute 1999 PCU PUMI COMM PCU User s Guide PUMI UTIL Generic Components for Petascale Adaptive Unstructured Mesh Based Simulations in Engineering with Computers 2012 PUMI GEOM Will be coming soon PUMI MESH Flexible Distributed Mesh Data Structure for Parallel Adaptive Analysis in Advanced Computational Infrastructures for Parallel and Distributed Adaptive Applications A John Wiley Sons Inc Publication 2010 Toward interoperable mesh geometry and field components for PDE

    Original URL path: http://www.scorec.rpi.edu/pumi/pumi_documents.php (2015-07-15)
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  • RPI SCOREC - PUMI Researchers
    CONTACT US SCOREC HOME Current PUMI Researchers Director Mark S Shephard Ph D Daniel A Ibanez CS Quikai Lu MANE Seegyoung Seol Ph D SCOREC Cameron W Smith CS Contact

    Original URL path: http://www.scorec.rpi.edu/pumi/pumi_contact.php (2015-07-15)
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  • RPI SCOREC - APF
    g error estimation or as an attribute for another analysis difficult at best and ambiguous in general To avoid this problem this information is preserved by introducing a construct known as a field A field describes the variation of a tensorial quantity over one or more entities in a domain model The spatial variation of the field is defined in terms of distributions defined over the domain discretization typically a

    Original URL path: http://www.scorec.rpi.edu/apf/ (2015-07-15)
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  • RPI SCOREC - ParMA
    partitioning models All mesh entities can be considered while graph partitioning models use only a subset of mesh adjacency information Any adjacency can be obtained in O 1 time assuming use of a complete mesh adjacency structure Partition model supports efficient part adjacency queries Figure Geometry and mesh for simulations of blood flow in an abdominal aortic aneurysm AAA using the PHASTA CFD code Partition Improvement with Multiple Criteria Diffusive

    Original URL path: http://www.scorec.rpi.edu/parma/ (2015-07-15)
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  • RPI SCOREC - MeshAdapt
    adapt the mesh to match that size field fully accounting for the actual geometry of curved domains while maintaining the semi structured nature of the elements in any boundary layers the mesh may include Figure 1 Local Mesh Modification Operators Given the mesh size field the strategy is to employ a complete set of mesh modification operations to alter the given mesh into the desired one For that purpose mesh modification procedure is implemented as the following first drive the mesh modification loop at the element level look at element edge lengths and shape in transformed space if both satisfactory continue to the next element if not satisfied select best modification elements with edges that are too long must have edges split or swapped out short edges eliminated Then continue the loop until size and shape is satisfied or no more improvement possible As for correction indication MeshAdapt uses a posteriori information error estimates error indicators or correction indicator to construct new mesh size field which provides the following advantages supports general changes in mesh size including construction of anisotropic meshes can deal with any level of geometric domain complexity can obtain level of accuracy desired solution transfer can be

    Original URL path: http://www.scorec.rpi.edu/meshadapt/ (2015-07-15)
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  • Transonic Aerodynamics (continued)
    Transonic Flow Rotor Pressure Distributions

    Original URL path: http://www.scorec.rpi.edu/PressureDist.html (2015-07-15)
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  • Adaptive Techniques
    mesh to another An alternative approach to obtaining the desired distribution of elements is to locally refine and or coarsen the mesh Such local operations can be performed efficiently and can effectively address the issues associated with the transfer of solution information Edge based refinement and derefinement procedures allow for general anisotropic refinement with no over refinement and local retriangulation tools which do not alter the local element sizes are used to improve triangulation quality The local retriangulation tools improve the quality of the elements involved without the need to perform the same degree of over refinement other procedures may require This is important since the amount of over refinement caused by procedures with implicit assurance of element quality maintenance can be very large The retriangulation procedures are also critical for allowing the proper application of refinement of elements on curved domain boundaries Triangulations can also be over refined when triangulation quality is degrading The application of refinement on meshes of curved geometric domains where at each step the mesh is to provide its best approximation to the geometric domain introduces a number of complexities which are directly addressed by the procedures developed at SCOREC This is an important addition

    Original URL path: http://www.scorec.rpi.edu/AdaptiveTechniques.html (2015-07-15)
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