Figure 1
From: Scale separated low viscosity dynamos and dissipation within the Earth’s core
Fraction of dissipation that is Ohmic. The fraction is fohm = Dmag/(Dmag + Dkin) and is considered to be close to unity in planetary cores. Our models (red stars) fill the low-Prm parameter space while dissipating primarily Ohmically. Other models from the literature are shown: black dots3,4; open diamonds6 (omitting models using hyperviscosity); open squares5.
