Predicted surface magnetic field strength B _surf from our transport models, normalized by the initial field B ₀, as a function of the initial size of the convection zone R _surf,0, for two different masses, and for two assumptions on the turbulent diffusivity. We show B _surf at three different time evolution from the onset of the crystallization. We see that for smaller R _surf,0 the predicted B _surf can be larger in certain cases when considering turbulent diffusivity, whereas the opposite behavior occurs for larger R _surf,0.