A new parallel meshing technique integrated into the conformal FDTD method for solving complex electromagnetic problems

2014 ◽  
Vol 15 (12) ◽  
pp. 1087-1097 ◽  
Author(s):  
Yang Guo ◽  
Xiang-hua Wang ◽  
Jun Hu
Keyword(s):  
Fdtd Method ◽  
Electromagnetic Problems ◽  
Parallel Meshing

Literature Review: Metode Komputasi Numerik untuk Analisis Gelombang Elektromagnetik

2018 ◽  
Vol 9 (2) ◽  
pp. 83-87
Author(s):  
Nabila Husna Shabrina
Keyword(s):  
Literature Review ◽  
Electromagnetic Waves ◽  
Fdtd Method ◽  
Theoretical Explanation ◽  
Computational Method ◽  
Method Of Moment ◽  
Electromagnetic Problems ◽  
Conceptual Background ◽  
Big Picture ◽  
Difference Time

This paper reviews the conceptual background and some application of numerical computational method for electromagnetic waves. In this literature review, our discussion is limited to Finite Element Method (FEM), Finite Difference Time Domain (FDTD) Method, and Method of Moment (MoM). Definition and characteristic of each method is explained, including the theoretical principles along with strength and weakness for every method. The method for solving electromagnetic problems can be selected based on the object’s shape, researcher’s domain concerned, and Maxwell equation associated with the problem. By reading this paper, readers will not only grasp the theoretical explanation but also gain the big picture of each numerical computational method. Indeks Terms— FEM, FDTD, MoM, Numerical Computational Method

ADI-FDTD Method for Two-Dimensional Transient Electromagnetic Problems

2016 ◽  
Vol 19 (1) ◽  
pp. 94-123 ◽  
Author(s):  
Wanshan Li ◽  
Yile Zhang ◽  
Yau Shu Wong ◽  
Dong Liang
Keyword(s):  
Fdtd Method ◽  
Stability And Convergence ◽  
Two Dimensional ◽  
Electromagnetic Problems ◽  
Transient Electromagnetic ◽  
Te Mode ◽  
The Earth ◽  
Air Interface ◽  
Alternating Direction ◽  
Difference Time

AbstractAn efficient and accurate numerical scheme is proposed for solving the transverse electric (TE) mode electromagnetic (EM) propagation problem in two-dimensional earth. The scheme is based on the alternating direction finite-difference time-domain (ADI-FDTD) method. Unlike the conventional upward continuation approach for the earth-air interface, an integral formulation for the interface boundary is developed and it is effectively incorporated to the ADI solver. Stability and convergence analysis together with an error estimate are presented. Numerical simulations are carried out to validate the proposed method, and the advantage of the present method over the popular Du-Fort-Frankel scheme is clearly demonstrated. Examples of the electromagnetic field propagation in the ground with anomaly further verify the effectiveness of the proposed scheme.

scholarly journals Study on High Performance of MPI-Based Parallel FDTD from WorkStation to Super Computer Platform

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
Z. L. He ◽  
K. Huang ◽  
Y. Zhang ◽  
Y. Yan ◽  
C. H. Liang
Keyword(s):  
High Performance ◽  
Computing Time ◽  
Fdtd Method ◽  
Numerical Results ◽  
Virtual Topology ◽  
Electromagnetic Problems ◽  
Parallel Performance ◽  
General Rules ◽  
Super Computer

Parallel FDTD method is applied to analyze the electromagnetic problems of the electrically large targets on super computer. It is well known that the more the number of processors the less computing time consumed. Nevertheless, with the same number of processors, computing efficiency is affected by the scheme of the MPI virtual topology. Then, the influence of different virtual topology schemes on parallel performance of parallel FDTD is studied in detail. The general rules are presented on how to obtain the highest efficiency of parallel FDTD algorithm by optimizing MPI virtual topology. To show the validity of the presented method, several numerical results are given in the later part. Various comparisons are made and some useful conclusions are summarized.

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