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

作者：Soares Delfim Jr^*

来源：Computer Modeling in Engineering & Sciences, 2009, 44(2): 157-175.

• Finite Elements
• Boundary Elements
• Time-Domain Analysis
• Multi-Level Time-Steps
• Electromagnetic Waves
• Green-Newmark Method

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.

• 出版日期2009-5