Kameni, A.
[Université Paris Sud, Université Pierre et Marie Curie]
Seny,B.
[UCL]
Pichon, L.
[Université Paris Sud, Université Pierre et Marie Curie]
This paper presents a multirate technique to improve and optimize the time step of a second-order two-stage explicit Runge-Kutta (ERK) scheme. In this technique, the mesh elements are stored in different groups according to their stable time steps. These groups are sorted into two classes: 1) the bulk groups, where the two-stage ERK method is applied once or repeatedly; 2) the buffer groups that are used to accommodate the transition between two bulk groups. This technique is proposed for accelerating the explicit discontinuous Galerkin computations of the time-domain Maxwell equations. An application example on a human skull is proposed to show the efficiency of this technique and to simulate wave propagation on complex geometries.
Bibliographic reference |
Kameni, A. ; Seny,B. ; Pichon, L.. Multirate technique for explicit discontinuous galerkin computations of time-domain maxwell equations on complex geometries. In: IEEE Transactions on Magnetics, Vol. 52, no.3, p. 1-4 (2016) |
Permanent URL |
http://hdl.handle.net/2078.1/200621 |