Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6928909 | Journal of Computational Physics | 2018 | 16 Pages |
Abstract
Maxwell's equations are discretized on a Face-Centered Cubic (FCC) lattice instead of a simple cubic as an alternative to the standard Yee method for improvements in numerical dispersion characteristics and grid isotropy of the method. Explicit update equations and numerical dispersion expressions, and the stability criteria are derived. Also, several tools available to the standard Yee method such as PEC/PMC boundary conditions, absorbing boundary conditions, and scattered field formulation are extended to this method as well. A comparison between the FCC and the Yee formulations is made, showing that the FCC method exhibits better dispersion compared to its Yee counterpart. Simulations are provided to demonstrate both the accuracy and grid isotropy improvement of the method.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Mahbod Salmasi, Michael Potter,