Figure 3.
The set of six line graphs depicts reluctivity as a function of frequency from 0 to 10 megahertz under analytical and finite element models for polar focus and uniform conditions. Panels A, C, and E show real reluctivity, while Panels B, D, and F show imaginary reluctivity. Red solid and dotted lines represent analytical and finite element polar focus results, respectively, and blue solid and dotted lines represent analytical and finite element uniform results. Frequency is shown on the x-axis, with an additional scale labelled a divided by delta above the graphs. Reluctivity generally increases with increasing frequency in all panels. The analytical and finite element curves closely overlap throughout the frequency range, indicating strong agreement between the two modelling approaches under both polar focus and uniform conditions.Homogenized reluctivities. Comparison between (48) and numerical solutions, (a) Virtual insulation, real reluctivity, (b) Virtual insulation, imaginary reluctivity, (c) 2 µm insulation, real reluctivity with Hashin−Shtrikman bounds, (d) 2 µm insulation, imaginary reluctivity, (e) 5 nm insulation, real reluctivity with Hashin−Shtrikman bounds, (f) 5 nm insulation, imaginary reluctivity