A new elliptical artificial coupling boundary in the hybrid finite element-analytical approach for 2-D open boundary electromagnetic field computation

• Published in: IEEE transactions on magnetics Vol. 41; no. 5; pp. 1372 - 1375
• Main Authors: HAN, She-Jiao, HE, Jin-Liang, GU, Shan-Qiang, JUN ZOU
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.05.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Analytical solution; Boundaries; Computation; Costs; Cross-disciplinary physics: materials science; rheology; eddy current field problems; Eddy currents; Educational Activities Board; Eigenvalues and eigenfunctions; Electromagnetic coupling; Electromagnetic fields; electrostatic field problem; Electrostatic fields; Electrostatics; elliptical artificial boundary (EAB); Exact sciences and technology; Exteriors; Finite element method; finite element method (FEM); Finite element methods; hybrid approach; Magnetism; Materials science; Mathematical analysis; Mathematical models; open boundary problems; Other topics in materials science; Physics; Shape; Finite element method; elliptical artificial boundary (EAB); hybrid approach; open boundary problems; Magnetism; Modelling; finite element method (FEM); eddy current field problems; electrostatic field problem; Eddy currents; Analytical solution
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2005.844369

An elliptical artificial boundary is introduced in the hybrid finite element method-analytical approach (FEM-ANA) for open boundary 2-D electromagnetic problems. It includes, as a special case, the circular artificial boundary (CAB) of Chari. The new artificial boundary (AB) is more flexible close to the configuration of the interested region than CAB, and makes the computation region of FEM reduced; meanwhile, it enlarges analytical solution region. The cost of the analysis of the exterior region for the two ABs is almost the same. The proposed approach is applied in analysis of electrostatic field and eddy current field problems.