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• W2898077596 abstract "Edge (or N'ed'elec) finite elements are theoretically sound and widely used by the computational electromagnetics community. However, its implementation, specially for high order methods, is not trivial, since it involves many technicalities that are not properly described in the literature. To fill this gap, we provide a comprehensive description of a general implementation of edge elements of first kind within the scientific software project FEMPAR. We cover into detail how to implement arbitrary order (i.e., $p$-adaptive) elements on hexahedral and tetrahedral meshes. First, we set the three classical ingredients of the finite element definition by Ciarlet, both in the reference and the physical space: cell topologies, polynomial spaces and moments. With these ingredients, shape functions are automatically implemented by defining a judiciously chosen polynomial pre-basis that spans the local finite element space combined with a change of basis to automatically obtain a canonical basis with respect to the moments at hand. Next, we discuss global finite element spaces putting emphasis on the construction of global shape functions through oriented meshes, appropriate geometrical mappings, and equivalence classes of moments, in order to preserve the inter-element continuity of tangential components of the magnetic field. Finally, we extend the proposed methodology to generate global curl-conforming spaces on non-conforming hierarchically refined (i.e., $h$-adaptive) meshes with arbitrary order finite elements. Numerical results include experimental convergence rates to test the proposed implementation." @default.
• W2898077596 created "2018-10-26" @default.
• W2898077596 creator A5031303542 @default.
• W2898077596 creator A5034172411 @default.
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• W2898077596 date "2019-06-01" @default.
• W2898077596 modified "2023-10-15" @default.
• W2898077596 title "On a general implementation of h- and p-adaptive curl-conforming finite elements" @default.
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• W2898077596 doi "https://doi.org/10.1016/j.advengsoft.2019.03.006" @default.
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