Article (Scientific journals)
Numerical investigation of a 3D hybrid high-order method for the indefinite time-harmonic Maxwell problem
Cicuttin, Matteo; Geuzaine, Christophe
2024In Finite Elements in Analysis and Design, 233, p. 104124
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Keywords :
Discontinuous Galerkin; Hybrid high-order method; Maxwell equations; Class of methods; Discontinuous galerkin; High-order; High-order methods; Higher-order; Higher-order methods; Maxwell's problems; Numerical investigations; Time-harmonic; Analysis; Engineering (all); Computer Graphics and Computer-Aided Design; Applied Mathematics
Abstract :
[en] Hybrid High-Order (HHO) methods are a recently developed class of methods belonging to the broader family of Discontinuous Sketetal methods. Other well known members of the same family are the well-established Hybridizable Discontinuous Galerkin (HDG) method, the nonconforming Virtual Element Method (ncVEM) and the Weak Galerkin (WG) method. HHO provides various valuable assets such as simple construction, support for fully-polyhedral meshes and arbitrary polynomial order, great computational efficiency, physical accuracy and straightforward support for hp-refinement. In this work we propose an HHO method for the indefinite time-harmonic Maxwell problem and we evaluate its numerical performance. In addition, we present the validation of the method in two different settings: a resonant cavity with Dirichlet conditions and a parallel plate waveguide problem with a total/scattered field decomposition and a plane-wave boundary condition. Finally, as a realistic application, we demonstrate HHO used on the study of the return loss in a waveguide mode converter.
Disciplines :
Mathematics
Computer science
Author, co-author :
Cicuttin, Matteo ;  Dipartimento di Scienze Matematiche, Politecnico di Torino, Torino, Italy
Geuzaine, Christophe  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Applied and Computational Electromagnetics (ACE)
Language :
English
Title :
Numerical investigation of a 3D hybrid high-order method for the indefinite time-harmonic Maxwell problem
Publication date :
June 2024
Journal title :
Finite Elements in Analysis and Design
ISSN :
0168-874X
eISSN :
1872-6925
Publisher :
Elsevier
Volume :
233
Pages :
104124
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
INRIA - Institut National de Recherche en Informatique et en Automatique
Funding text :
The authors wish to express their gratitude to S. Lemaire (INRIA), Z. Dong (INRIA) and T. Chaumont-Frelet (INRIA) for the useful discussions about some of the theoretical aspects of the HHO method.
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since 04 June 2025

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