amun-code/problems/flux-tubes.in

# problem name and parameters
#
problem              = "flux-tubes"
profile              = "sincos"
beta                 = 2.00d+00
bgui                 = 0.00d+00
delta                = 3.16d-03

# diffusion coefficients
#
viscosity            = 1.00d-05
resistivity          = 1.00d-05
glm_source_terms     = "none"

# random number generator
#
gentype              = "same"

# physics
#
equation_system      = "mhd"
equation_of_state    = "iso"

# methods
#
time_advance         = "ssprk3(2)4"
riemann_solver       = "roe"
reconstruction       = "ocmp5"

# mesh parameters
#
xmin                 = -5.00d-01
xmax                 =  5.00d-01
ymin                 = -5.00d-01
ymax                 =  5.00d-01

# refinement control
#
ncells               = 32
minlev               = 1
maxlev               = 9
refinement_variables = "vort jabs"
currmin              = 5.0d-02
currmax              = 2.0d-01
vortmin              = 5.0d-02
vortmax              = 2.0d-01

# boundary conditions
#
xlbndry              = "user"
xubndry              = "user"
ylbndry              = "user"
yubndry              = "user"

# runtime control parameters
#
tmax                 = 2.0d+00
cfl                  = 5.0d-01

# data output control
#
snapshot_interval    = 1.0d-01
compression_format   = "zstd"
compression_level    = 19