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  • RPI SCOREC - Technical Reports
    Journal AIAA Journal Volume 38 Pages 50 56 Abstract We present a multigrid strategy for the solution of the Euler equations in three dimensional domains The procedures include data structures and mesh modification tools for defining unstructured adaptive multilevel meshes on general curved domain and an implicit time marching multigrid finite element solver The code is equipped with special features for the solution of problems relevant to rotorcraft technology The

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=109 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    recovery process does not rely on the parametric space of the surface mesh provided by the geometric modeler The topological and geometrical validity of the surface mesh is preserved through the entire recovery process The ability of inserting and recovering an arbitrary edge onto a surface mesh can be an invaluable tool for a number of meshing applications such as boundary layer mesh generation solution adaptation preserving the surface conformity

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=110 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    Automated Modeling for Complex Woven Mesostructures Year 1998 Journal Computer Methods in Applied Mechanics and Engineering Volume 172 1 4 Pages 273 291 Abstract Computational methods for modeling complex three dimensional woven structures are reviewed and software tools for automated model construction are described The tools make use of image processing geometric and attribute modeling automated discretization and efficient solvers The discretization techniques control mesh periodicity and volume fraction errors

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=111 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    Journal Computer Methods in Applied Mechanics and Engineering Volume 180 Pages 65 79 Abstract A stabilized mixed finite element method for finite elasticity is presented The method circumvents the fulfillment of the Ladyzenskaya Babuska Brezzi condition by adding mesh dependent terms which are functions of the residuals of the Euler Lagrange equations to the usual Galerkin method The weak form and the linearized weak form are presented in terms of

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=112 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    equations on a domain W The method is based on the definition of overlapping patches comprising a cover of the domain W For an efficient implementation it is important that the interaction between the patches themselves and between the patches and the boundary is well understood and easily accessible during runtime of the program We will show that an octree representation of the domain with a tetrahedral mesh at the

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=113 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    are solved with axial symmetry by an adaptive finite element system The adaptive procedure operates within a method of lines framework using finite elements in space and backward difference software in time Spatial meshes are automatically refined coarsened and relocated in response to error indications and material deformation Problems with arbitrarily complex two dimensional regions may be addressed With meshes graded in high error regions the adaptive solutions have fewer

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=115 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    chain systems The method is based on the parallelizable O n algorithm developed previously by the authors in combination with a more traditional O n3 formulation for key bodies of the system The resulting parallel algorithm may be considered hybridization of other methods at three levels i Descriptor form and state space O n ii Combined iterative and direct solution schemes at each integration step for the solution of system

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=116 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    optimizers are their domain independent technique which are not restricted to particular problem formats and their ability to generate and test various parameter combination efficiently However GAs using a more traditional single point crossover strategy to perform parameter recombination exhibit several flaws which greatly restrain the GAs exploration capability This paper presents a family of alternative crossover strategies which emphasize parameter recombination so to enhance solution space exploration yet are

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=117 (2015-07-15)
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