Article,
The 3D MHD code GOEMHD3 for large-Reynolds-number astrophysical plasmas
Astronomy & Astrophysics, (Apr 8, 2015)
DOI: 10.1051/0004-6361/201425274
Abstract
The numerical simulation of turbulence and flows in almost ideal,
large-Reynolds-number astrophysical plasmas motivates the implementation of
almost conservative MHD computer codes. They should efficiently calculate, use
highly parallelized schemes scaling well with large numbers of CPU cores,
allows to obtain a high grid resolution over large simulation domains and which
can easily be adapted to new computer architectures as well as to new initial
and boundary conditions, allow modular extensions. The new massively parallel
simulation code GOEMHD3 enables efficient and fast simulations of almost ideal,
large-Reynolds-number astrophysical plasma flows, well resolved and on huge
grids covering large domains. Its abilities are validated by major tests of
ideal and weakly dissipative plasma phenomena. The high resolution (\$2048^3\$
grid points) simulation of a large part of the solar corona above an observed
active region proved the excellent parallel scalability of the code using more
than 30.000 processor cores.
