A New Dynamic Local Mesh Refinement Algorithm for Finite Difference Time Domain

Author

Marandi, Alireza ; Afshinmanesh, Farzaneh ; So, Poman P M

Author_Institution

Univ. of Victoria, Victoria

fYear

2007

fDate

22-26 April 2007

Firstpage

667

Lastpage

670

Abstract

A dynamic local mesh refinement algorithm is proposed to accelerate the speed of local mesh refinement for the finite difference time domain (FDTD) method. The structure of interest is first meshed with a coarse global mesh; at each time step, the algorithm evaluates the energy level at some strategic locations in the structure and refines the mesh at these locations if the energy level is over a critical level. The performance of this new refinement method is tested with a 2D FDTD engine for TE mode and the results show obvious improvement in speed with negligible decrease in accuracy.

Keywords

computational electromagnetics; finite difference time-domain analysis; mesh generation; FDTD; coarse global mesh; computational electromagnetics; dynamic local mesh refinement algorithm; finite difference time domain method; Acceleration; Adaptive mesh refinement; Energy states; Engines; Finite difference methods; Heuristic algorithms; Interpolation; Tellurium; Testing; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2007. CCECE 2007. Canadian Conference on

Conference_Location

Vancouver, BC

ISSN

0840-7789

Print_ISBN

1-4244-1020-7

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2007.171

Filename

4232830