Open Access

ARTICLE

Numerical Modelling of Electromagnetic Waves by Explicit Multi-Level Time-Step FEM-BEM Coupling Procedures

Delfim Soares Jr.¹

1 Faculty of Engineering, Federal University of Juiz de Fora, Cidade Universitária, CEP 36036-330, Juiz de Fora, MG, Brazil. Tel: +55 32 2102-3468; E-mail: delfim.soares@ufjf.edu.br

Computer Modeling in Engineering & Sciences 2009, 44(2), 157-176. https://doi.org/10.3970/cmes.2009.044.157

Abstract

The numerical modelling of electromagnetic waves by finite element - boundary element coupling procedures is discussed here, taking into account time-domain approaches. In this study, the global model is divided into different sub-domains and each sub-domain is analysed independently and explicitly at each time-step of the analysis: the interaction between the different sub-domains of the global model is accomplished by interface procedures. A multi-level time-step algorithm is considered in order to improve the flexibility, accuracy and stability (especially when conditionally stable time-marching procedures are employed) of the coupled analysis. At the end of the paper, numerical examples are presented, illustrating the potentialities and robustness of the proposed methodologies.

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Keywords

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