Physics – Computational Physics
Scientific paper
2009-01-08
J.Comput.Phys.228:2822-2833,2009
Physics
Computational Physics
15 pages, 6 figures
Scientific paper
10.1016/j.jcp.2008.12.023
In this paper we propose an explicit two-level conservative scheme based on a TE/TM like splitting of the field components in time. Its dispersion properties are adjusted to accelerator problems. It is simpler and faster than the implicit version [1]. It does not have dispersion in the longitudinal direction and the dispersion properties in the transversal plane are improved. The explicit character of the new scheme allows a uniformly stable conformal method without iterations and the scheme can be parallelized easily. It assures energy and charge conservation. A version of this explicit scheme for rotationally symmetric structures is free from the progressive time step reducing for higher order azimuthal modes as it takes place for Yee's explicit method used in the most popular electrodynamics codes.
Dohlus Martin
Zagorodnov Igor
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