Extended generalized Lagrangian multipliers for magnetohydrodynamics using adaptive multiresolution methods
ESAIM. Proceedings, Tome 43 (2013), pp. 95-107
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We present a new adaptive multiresoltion method for the numerical simulation of ideal magnetohydrodynamics. The governing equations, i.e., the compressible Euler equations coupled with the Maxwell equations are discretized using a finite volume scheme on a two-dimensional Cartesian mesh. Adaptivity in space is obtained via Harten’s cell average multiresolution analysis, which allows the reliable introduction of a locally refined mesh while controlling the error. The explicit time discretization uses a compact Runge–Kutta method for local time stepping and an embedded Runge-Kutta scheme for automatic time step control. An extended generalized Lagrangian multiplier approach with the mixed hyperbolic-parabolic correction type is used to control the incompressibility of the magnetic field. Applications to a two-dimensional problem illustrate the properties of the method. Memory savings and numerical divergences of magnetic field are reported and the accuracy of the adaptive computations is assessed by comparing with the available exact solution.
Affiliations des auteurs :
M. O. Domingues 1 ; A. K. F. Gomes 2 ; S. M. Gomes 3 ; O. Mendes 4 ; B. Di Pierro 5 ; K. Schneider 6
@article{EP_2013_43_a6,
author = {M. O. Domingues and A. K. F. Gomes and S. M. Gomes and O. Mendes and B. Di Pierro and K. Schneider},
title = {Extended generalized {Lagrangian} multipliers for magnetohydrodynamics using adaptive multiresolution methods},
journal = {ESAIM. Proceedings},
pages = {95--107},
year = {2013},
volume = {43},
doi = {10.1051/proc/201343006},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.1051/proc/201343006/}
}
TY - JOUR AU - M. O. Domingues AU - A. K. F. Gomes AU - S. M. Gomes AU - O. Mendes AU - B. Di Pierro AU - K. Schneider TI - Extended generalized Lagrangian multipliers for magnetohydrodynamics using adaptive multiresolution methods JO - ESAIM. Proceedings PY - 2013 SP - 95 EP - 107 VL - 43 UR - http://geodesic.mathdoc.fr/articles/10.1051/proc/201343006/ DO - 10.1051/proc/201343006 LA - en ID - EP_2013_43_a6 ER -
%0 Journal Article %A M. O. Domingues %A A. K. F. Gomes %A S. M. Gomes %A O. Mendes %A B. Di Pierro %A K. Schneider %T Extended generalized Lagrangian multipliers for magnetohydrodynamics using adaptive multiresolution methods %J ESAIM. Proceedings %D 2013 %P 95-107 %V 43 %U http://geodesic.mathdoc.fr/articles/10.1051/proc/201343006/ %R 10.1051/proc/201343006 %G en %F EP_2013_43_a6
M. O. Domingues; A. K. F. Gomes; S. M. Gomes; O. Mendes; B. Di Pierro; K. Schneider. Extended generalized Lagrangian multipliers for magnetohydrodynamics using adaptive multiresolution methods. ESAIM. Proceedings, Tome 43 (2013), pp. 95-107. doi: 10.1051/proc/201343006
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