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Implementation of an Approximate Conformal UPML in 2-D DGTD
Joint Authors
Wei, Bing
Yang, Qian
Li, Linqian
Ge, Debiao
Source
International Journal of Antennas and Propagation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-12-17
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Using the numerical discrete technique with unstructured grids, conformal perfectly matched layer (PML) absorbing boundary in the discontinuous Galerkin time-domain (DGTD) can be set flexibly so as to save lots of computing resources.
Based on the DGTD equations in an orthogonal curvilinear coordinate system, the processes of parameter transformation for 2-D UPML between the coordinate systems of elliptical and Cartesian are given; and the expressions of transition matrix are derived.
The calculation scheme of conductivity distribution in elliptic cylinder absorbing layer is given, and the calculation coefficient of DGTD in elliptic UPML is calculated.
Furthermore, the 2-D iterative formulas of DGTD and that of auxiliary equation in the elliptical cylinder UPML are derived; the conformal UPML calculation in DGTD is realized.
Numerical results show that very good accuracy and computational efficiency are achieved by using the method in this paper.
Compared to the rectangular computational region, both the memory and computation time of conformal UPML absorbing boundary are reduced by more than 20%.
American Psychological Association (APA)
Li, Linqian& Wei, Bing& Yang, Qian& Ge, Debiao. 2017. Implementation of an Approximate Conformal UPML in 2-D DGTD. International Journal of Antennas and Propagation،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1158831
Modern Language Association (MLA)
Li, Linqian…[et al.]. Implementation of an Approximate Conformal UPML in 2-D DGTD. International Journal of Antennas and Propagation No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1158831
American Medical Association (AMA)
Li, Linqian& Wei, Bing& Yang, Qian& Ge, Debiao. Implementation of an Approximate Conformal UPML in 2-D DGTD. International Journal of Antennas and Propagation. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1158831
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158831