Time domain hybrid finite elements / finite differences method for solving electromagnetic compatibility problems

Understanding the electromagnetic interactions between broadband signals and the environment is important, especially in the area of aerospace design. In this area the accurate modelling of realistic engineering problems often leads to a computational domain which is geometrically complex, often wit...

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Veröffentlicht in:2010 14th Biennial IEEE Conference on Electromagnetic Field Computation S. 1
1. Verfasser: El Hachemi, Mohamed
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.05.2010
Schlagworte:
Aerospace engineering
Aerospace materials
Computer interfaces
Electromagnetic compatibility
Finite difference methods
Finite element methods
Signal design
Solid modeling
Time domain analysis
Wiring
ISBN:1424470595, 9781424470594
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Zusammenfassung:Understanding the electromagnetic interactions between broadband signals and the environment is important, especially in the area of aerospace design. In this area the accurate modelling of realistic engineering problems often leads to a computational domain which is geometrically complex, often with different types of materials interfaces and even the modelling of wiring for some EMC problems. The development of suitable computational tools that allows the modelling of such complex and large-scale problems is of paramount importance. A time domain heterogeneous hybrid computational electro-magnetics method is presented. The algorithm uses a time-domain finite element method and a finite-difference time-domain Yee scheme to compute the fields in two regions. The two regions overlap in a buffer zone to allow for stable solution interpolation between the two parts. This enables different parts of the simulation domain to be treated by different methods, thus enabling the most appropriate method to be used for each part. As an illustration of the approach, we will present the results for a number of challenging examples, including scattering from complete aircraft and coupled cavities modelling.
ISBN:1424470595
9781424470594
DOI:10.1109/CEFC.2010.5481778