Color computer graphics in magnetic field analysis by means of the finite element method

Abstract The finite element method for electromagnetic fields is very popular because of its powerful numerical techniques. Since the output from the finite element analyses (F.E.A.) usually makes a pile of numerical data, it is very important to display them intelligibly and accurately in order to assist analysts in understanding and evaluating the results. Three post-processing methods in the F.E.A. using a multi-color pen plotter or a color CRT are proposed: (1) Depiction of magnetic flux lines in two or three dimensional fields by using a multi-color pen plotter, (2) Depiction of magnetic flux density distribution with flux lines in two dimensional fields by using a color CRT, (3) Depiction of error distribution by using a color CRT. By using these three methods analysts can visually grasp the behavior of the magnetic fields and the error distribution in detail.

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