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A parallel octree-based mesh generation method is proposed to create reasonable-quality, geometry-adapted unstructured hexahedral meshes automatically from triangulated surface models. We present algorithms for the construction, 2:1 balancing and meshing large linear octrees on distributed memory machines. Our scheme uses efficient computer graphics(More)
This paper evaluates the effects of reordering the unknowns on the convergence of preconditioned Krylov subspace methods for the solution of nonsymmetric linear systems that arise from the finite element discretization of flow and transport. Of particular interest is the iterative solver behavior when adaptive mesh refinement (AMR) is utilized. Numerical(More)
A parallel octree-based meshing is proposed to create reasonable-quality, geometry-adapted unstructured hexahedral meshes automatically from triangulated surface models for finite element computations. Algorithms for the construction, 2:1 balancing and meshing large linear octrees on distributed memory machines are presented. For surface detection, our(More)
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