Integral equation method using total scalar potential for the simulation of linear or nonlinear 3D magnetostatic field with open boundary

1994 ◽  
Vol 30 (5) ◽  
pp. 2897-2900 ◽  
Author(s):  
Lin Han ◽  
Lin-Su Tong ◽  
Jing Yang
Keyword(s):  
Integral Equation ◽  
Scalar Potential ◽  
Integral Equation Method ◽  
Equation Method ◽  
Open Boundary ◽  
Magnetostatic Field

Accuracy improvement in nonlinear magnetostatic field computations with integral equation methods and indirect total scalar potential formulations

2006 ◽  
Vol 25 (3) ◽  
pp. 565-571 ◽  
Author(s):  
Wolfgang Hafla ◽  
André Buchau ◽  
Wolfgang M. Rucker
Keyword(s):  
Integral Equation ◽  
Scalar Potential ◽  
Integral Equation Method ◽  
Computational Accuracy ◽  
Magnetostatic Field ◽  
Content Type ◽  
Demagnetizing Field ◽  
Difference Field ◽  
Excitation Potential ◽  
New Formulation

PurposeThe paper seeks to solve nonlinear magnetostatic field problems with the integral equation method and different indirect formulations.Design/methodology/approachTo avoid large cancellation errors in cases where the demagnetizing field is high a difference field concept is used. This requires the computation of sources of the scalar potential of the excitation field.FindingsA new formulation to compute these sources is presented. The improved computational accuracy is demonstrated with numerical examples.Originality/valueThe paper develops a novel formulation for the computation of sources of scalar excitation potential.

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