求解轴对称场的有限元新型等效源两种耦合新算法

Calculation of the Axisymmetric Field Using Two Kinds of the Coupled Finite Element-New-Type Equivalent Source Method

本文提出有限元法与新型等效源法的两种新耦合算法 .该耦合法可以使有限元法和新型等效源法在矩形边界上进行耦合 ,发挥了有限元法与新型等效源法的各自优点 ,特别适合于求解无界区域的各类问题 .用耦合法计算了一轴对称非线性静磁场模型 ,与有限元法相比 ,耦合法将会减少未知数的个数 。

Two kinds of the coupled finite element-new-type equivalent source method are systematically illustrated. The coupling of the two methods (FEM and NESM) can enhance the advantages of both techniques and help to overcome their specific weaknesses. The methods are especially adapted to the calculation of open domain problems including nonlinear, anisotropic and stratified media.