Results from a high–resolution, turbulent, magnetohydrodynamics simulatation,
with conditions that mimic those of a galaxy cluster plasma, are analyzed
to determine the source of magnetic field filamentation. Although
this simulation does not explicitly model resistive contributions to magnetic
field growth, it was determined that numerical energy dissipation is approximately
equal in magnitude and opposite in sign to magnetic energy growth
predicted by ideal magnetohydrodynamics. Resistive energy dissipation is
therefore essential to magnetic field filamentation.