Fully resolved array of simulations investigating the influence of the
  magnetic Prandtl number on magnetohydrodynamic turbulence
  We explore the effect of the magnetic Prandtl number Pm on energy and
dissipation in fully resolved direct numerical simulations of steady-state,
mechanically forced homogeneous magnetohydrodynamic turbulence in the range Pm
= 1/32 to 32. We compare the spectra and show that if the simulations are not
fully resolved, the steepness of the scaling of the kinetic-to-magnetic
dissipation ratio with Pm is overestimated. We also present results of decaying
turbulence with helical and nonhelical magnetic fields, where we find
nonhelical reverse spectral transfer for Pm < 1. The results of this systematic
analysis have applications including stars, planetary dynamos, and accretion
disks.
