Converting a tetrahedral mesh to a prism-tetrahedral hybrid mesh for FEM accuracy and efficiency
نویسندگان
چکیده
منابع مشابه
Tetrahedral Mesh Compression
In the last years, substantial progress has been achieved in the area of volume visualization on irregular grids, which is mainly based on tetrahedral meshes. No attempts have been made so far to compress tetrahedral meshes losslessly, although this is especially important for scientific applications since even moderately fine meshes consume several mega-bytes of storage. In this paper we close...
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We present a tetrahedral mesh improvement schedule that usually creates meshes whose worst tetrahedra have a level of quality substantially better than those produced by any previous method for tetrahedral mesh generation or “mesh clean-up.” Our goal is to aggressively optimize the worst tetrahedra, with speed a secondary consideration. Mesh optimization methods often get stuck in bad local opt...
متن کاملTetrahedral Mesh Compression
In the last years, substantial progress has been achieved in the area of volume visualization on irregular grids, which is mainly based on tetrahedral meshes. No attempts have been made so far to compress tetrahedral meshes losslessly, although this is especially important for scientific applications since even moderately fine meshes consume several mega-bytes of storage. In this paper we close...
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Computational Fluid Dynamics (CFD) methods for viscous computations often require high quality computational meshes. The viscous layer area needs to be meshed at a high resolution, leading to highly anisotropic meshes. The methodology developed in this article addresses this issue, enabling the creation of a viscous layer in a tetrahedral (or hybrid polyhedral) mesh, so that the inner meshing i...
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Automatic mesh generation and adaptive reenement methods for complex three-dimensional domains have proven to be very successful tools for the eecient solution of complex applications problems. These methods can, however, produce poorly shaped elements that cause the numerical solution to be less accurate and more diicult to compute. Fortunately, the shape of the elements can be improved throug...
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ژورنال
عنوان ژورنال: International Journal for Numerical Methods in Engineering
سال: 2009
ISSN: 0029-5981
DOI: 10.1002/nme.2634