Directory:
    ${PENCIL_HOME}/samples/2d-tests/chiral_dynamo
SVN Id:
    $Id$
Maintainer:
    Jennifer Schober <schober[dot]jen/gmail[dot]com>
Added:
    28-Jul-2020
Status:
    succeeds # One of [succeeds|failing since <date>|obsolete| ...]
Recommended resolution:
    32x32x1 for nu=eta=1e-2 is fine.
Comments:
    This is a chiral MHD run with an initial seed magnetic field
    and an initial chiral asymmetry (mu5). 
    The nonzero mu5 leads to an instability in the magnetic field,
    that has a maximum growth rate of eta*mu5^2/4 rate which is attained
    on the wavenumber k=mu5/2. Therefore, to have this chiral dynamo 
    instability within the box, the initial value of mu5 should be 
    between 1 and approximately less than 16 (for a resolution of 32). 
References:
    Brandenburg, A.; Schober, J.; Rogachevskii, I.;Kahniashvili, T.; 
    Boyarsky, A.; Fröhlich, J.; Ruchayskiy, O.; Kleeorin, N.: 2017, 
    ``The Turbulent Chiral Magnetic Cascade in the Early Universe'', 
    The Astrophysical Journal Letters, Volume 845, Issue 2, article id. 
    L21
    Schober, J.; Rogachevskii, I.; Brandenburg, A.; Boyarsky, A.; 
    Fröhlich, J.; Ruchayskiy, O.; Kleeorin, N.: 2018, ``Laminar and 
    Turbulent Dynamos in Chiral Magnetohydrodynamics. II. Simulations'',
    The Astrophysical Journal, Volume 858, Issue 2, article id. 124
    Schober, J.; Brandenburg, A.; Rogachevskii, I.: 2020, ``Chiral 
    fermion asymmetry in high-energy plasma simulations'', Geophysical 
    & Astrophysical Fluid Dynamics, Volume 114, Issue 1-2, p.106-129