Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Finite element analysis of electromagnetic scattering problems via iterative leap-field domain decomposition method
Date
2008-01-01
Author
Ozgun, O.
Kuzuoğlu, Mustafa
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
176
views
0
downloads
Cite This
We introduce the Iterative Leap-field Domain Decomposition Method (ILF-DDM), which is based on the dual employment of Finite Element Method and Huygens' Principle iteratively, for the solution of electromagnetic boundary value problems. The method can be applied to cases involving both multiple objects and a single 'challenging' object using the locally-conformal perfectly matched layer technique. We report some numerical results for two-dimensional electromagnetic scattering problems.
Subject Keywords
Objects
,
Algorithm
URI
https://hdl.handle.net/11511/33044
Journal
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
DOI
https://doi.org/10.1163/156939308784160668
Collections
Department of Electrical and Electronics Engineering, Article
Suggestions
OpenMETU
Core
Parallel-MLFMA Solutions of Large-Scale Problems Involving Composite Objects
Ergül, Özgür Salih (2012-07-14)
We present a parallel implementation of the multilevel fast multipole algorithm (MLFMA) for fast and accurate solutions of large-scale electromagnetics problems involving composite objects with dielectric and metallic parts. Problems are formulated with the electric and magnetic current combined-field integral equation (JMCFIE) and solved iteratively with MLFMA on distributed-memory architectures. Numerical examples involving canonical and complicated objects, such as optical metamaterials, are presented to...
Rigorous Solutions of Large-Scale Scattering Problems Discretized with Hundreds of Millions of Unknowns
Guerel, L.; Ergül, Özgür Salih (2009-09-18)
We present fast and accurate solutions of large-scale scattering problems using a parallel implementation of the multilevel fast multipole algorithm (MLFMA). By employing a hierarchical partitioning strategy, MLFMA can be parallelized efficiently on distributed-memory architectures. This way, it becomes possible to solve very large problems discretized with hundreds of millions of unknowns. Effectiveness of the developed simulation environment is demonstrated on various scattering problems involving canonic...
Finite element modeling of electromagnetic radiation
Özgün, Özlem; Kuzuoğlu, Mustafa; Department of Electrical and Electronics Engineering (2007)
The Finite Element Method (FEM) is a powerful numerical method to solve wave propagation problems for open-region electromagnetic radiation/scattering problems involving objects with arbitrary geometry and constitutive parameters. In high-frequency applications, the FEM requires an electrically large computational domain, implying a large number of unknowns, such that the numerical solution of the problem is not feasible even on state-of-the-art computers. An appealing way to solve a large FEM problem is to...
Finite element error analysis for a projection-based variational multiscale method with nonlinear eddy viscosity
John, Volker; Kaya Merdan, Songül; Kindl, Adele (Elsevier BV, 2008-08-15)
The paper presents a finite element error analysis for a projection-based variational multiscale (VMS) method for the incompressible Navier-Stokes equations. In the VMS method, the influence of the unresolved scales onto the resolved small scales is modeled by a Smagorinsky-type turbulent viscosity.
Efficient Surface Integral Equation Methods for the Analysis of Complex Metamaterial Structures
Yla-Oijala, Pasi; Ergül, Özgür Salih; Gurel, Levent; Taskinen, Matti (2009-03-27)
Two approaches, the multilevel fast multipole algorithm with sparse approximate inverse preconditioner and the surface equivalence principle algorithm, are applied to analyze complex three-dimensional metamaterial structures. The efficiency and performance of these methods are studied and discussed.
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
O. Ozgun and M. Kuzuoğlu, “Finite element analysis of electromagnetic scattering problems via iterative leap-field domain decomposition method,”
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
, pp. 251–266, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33044.