Fig. 3
From: Optimal shape of additively manufactured magnetic cores
Cross-sections of flux guides with cylindrical/prismatic shapes (a,b) and sheet-like shapes (c). For all the shapes, the scale 2a shows the doubled area-to-perimeter ratio. Dashed loops mark model streamlines used for simplified calculation of energy dissipation, and the shaded area shows the area A embraced by one such model streamline.
