A comparative analysis of cylindrical CFS-PML ABC for finite volume simulations in the frequency domain

A comparative analysis of cylindrical CFS-PML ABC for finite volume simulations in the frequency domain

A comparative analysis of two cylindrical complex-frequency-shifted perfectly matched layers (CFS-PML) absorbing boundary condition (ABC) for bi-dimensional (2-D) finite-volume (FV) simulations in the frequency domain is presented. The impact of CFS-PML parameters on the wave absorption, as well as...

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Bibliographic Details
Main Authors: Ana Paula M. Lima, Marcela S. Novo
Format: Article
Language:English
Published: Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
Series:Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Subjects:
Coaxial waveguides
condition number
finite volume methods
perfectly matched layers
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742014000200004&lng=en&tlng=en
Description
Summary:A comparative analysis of two cylindrical complex-frequency-shifted perfectly matched layers (CFS-PML) absorbing boundary condition (ABC) for bi-dimensional (2-D) finite-volume (FV) simulations in the frequency domain is presented. The impact of CFS-PML parameters on the wave absorption, as well as on the condition number of the associated system matrix is investigated by comparing the performance of two PML loss profiles, viz., polynomial and geometric grading. FV-CFS-PML results are validated against analytical solution. Numerical results show that inclusion of a CFS-PML within the FV computational domain increases the condition number of the system matrix and therefore the use of CFS-PML 3-D FV simulations is limited.
ISSN:2179-1074

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