Jose J. Camata

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The development of powerful computational resources and scalable parallel finite element solvers has created unprecedented new opportunities for scientists and engineers to solve a range of complex, physical phenomena at larger scales and resolution than heretofore possible. Here, high-resolution means meshes containing billions of elements. However, build(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)
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)
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