Multi-domain multi-scale problems in high frequency finite element methods

• Istvan Bardi ^[1] ; Kezhong Zhao ^[1] ; Rickard Petersson ^[1] ; John Silvestro ^[1] ; Nancy Lambert ^[1]
  1. [1] ANSYS Inc
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 32, Nº 5, 2013, págs. 1471-1483
• Idioma: inglés
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• Resumen

  • Purpose – This paper aims to present a domain decomposition method to overcome the challenges posed by multi-domain, multi-scale high frequency problems.

    Design/methodology/approach – A hybrid finite element and boundary integral procedure is also presented that allows for domains to employ different solution methods in different subdomains.

    Findings – By decomposing large electromagnetic regions into smaller domains, the finite element method can cope with the simulation of electrically large problems.

    Practical implications – Real life examples demonstrate the accuracy and efficiency of the new method.

    Originality/value – The Robin transmission condition (RTC) is applied to link the domains and preserve field continuity on interfaces.