Bringing Trimmed Serendipity Methods to Computational Practice in Firedrake
arXiv:2104.12986 · doi:10.1145/3490485
Abstract
We present an implementation of the trimmed serendipity finite element family, using the open source finite element package Firedrake. The new elements can be used seamlessly within the software suite for problems requiring , \hcurl, or \hdiv-conforming elements on meshes of squares or cubes. To test how well trimmed serendipity elements perform in comparison to traditional tensor product elements, we perform a sequence of numerical experiments including the primal Poisson, mixed Poisson, and Maxwell cavity eigenvalue problems. Overall, we find that the trimmed serendipity elements converge, as expected, at the same rate as the respective tensor product elements while being able to offer significant savings in the time or memory required to solve certain problems.
arXiv comment19 pages, 7 figures, 3 tables, 2 listings
References in corpus (8)
- Firedrake: automating the finite element method by composing abstractions
- Finite element exterior calculus: from Hodge theory to numerical stability
- The serendipity family of finite elements
- Efficient Assembly of H(div) and H(curl) Conforming Finite Elements
- Finite element differential forms on cubical meshes
- TSFC: a structure-preserving form compiler
- Finite element differential forms on curvilinear cubic meshes and their approximation properties
- Bringing Trimmed Serendipity Methods to Computational Practice in Firedrake