The tar archive Helicity_in_IdealMHDCode.tar contains an index.html
file with links to a directory with "Add-ons" to the FLASH code and
the flash.par file. We also list the IDL directory with secondary data
and plot routines for each figure used in the paper "Magnetic helicity
dissipation and production in an ideal MHD code" by Axel Brandenburg
(Nordita) and Evan Scannapiecoo (Arizona State University) with the URL
https://arxiv.org/abs/1910.06074. Corrections and updates are available
on the active URL to this tar archive:

https://www.nordita.org/~brandenb/projects/Helicity_in_IdealMHDCode/