TY  - EJOU
AU  - Jr., Delfim Soares 

TI  - Numerical Modelling of Electromagnetic Waves by Explicit Multi-Level Time-Step FEM-BEM Coupling Procedures
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2009
VL  - 44
IS  - 2
SN  - 1526-1506

AB  - 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.
KW  - Finite Elements
KW  -  Boundary Elements
KW  -  Time-Domain Analysis
KW  -  Multi-Level Time-Steps
KW  -  Electromagnetic Waves
KW  -  Green-Newmark Method

DO  - 10.3970/cmes.2009.044.157