Directory:
    ${PENCIL_HOME}/samples/implicit_resistivity
SVN Id:
    $Id$
Maintainer:
    Chao-Chin Yang <ccyang/ua[dot]edu>
Added:
    05.31.2012
Status:
    succeeds since added
Recommended resolution:
    32x32x32
Comments:
    This sample is only for testing purposes.  It uses the resistivity
    term in module Magnetic as ordinary diffusion equations.  A delta
    function is put in the center of the grid initially, where its
    diffusion is analytically known.
    The algorithm is described in and has been applied to the work
    listed in References.
References:
    Yang, C.-C., Mac Low, M.-M., & Johansen, A. 2018, ApJ, 868, 27
    "Diffusion and Concentration of Solids in the Dead Zone of a
     Protoplanetary Disk"