MHD_CONTROL_MOVIE is a pair of Mathematica routines which display the magnetic field or velocity field, using data from a particular run of a magnetic hydrodynamic control problem for a fluid flow in a 2D region.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
The program used to generate the data is available in MHD_CONTROL.
The data files used for this particular animation are available in the MHD_CONTROL dataset directory.
You can go up one level to the Mathematica source codes.