ANSYS and Closed Form Solution for a Cast Iron and
Magnetic Circuit with an Air Gap

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Magnetic Flux Contours

Finite Element Mesh and Problem Setup

 

Magnetic Flux (Tesla) Contours

 
Iron BH Curve

Cast Iron  BH Curve

 

ANSYS Closed Form*
Average Flux 0.33 Tesla 0.35 Tesla

 

*Schaum's Outline Series, Theory and Problems of Electromagnetics, McGraw-Hill, 1979, Page 149.