Regularization on Ill-posed source terms in FEM computation using two magnetic vector potentials

被引：14
|
作者：
Kameari, A [1 ]
机构：
[1] Sci Solut Int Lab Inc, Tokyo 1530065, Japan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2004年 / 40卷 / 02期
关键词：
Eddy currents; finite-element calculations; static magnetic fields; time-dependent magnetic fields;
D O I：
10.1109/TMAG.2004.824712
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In the formulation with two magnetic vector potentials, the inaccuracy of the Biot-Savart integration for the source term causes the divergence of the conjugate gradient method. The ill-posed equations are regularized by subtracting a rotational field from the numerically integrated field. The convergence is drastically improved. Even when the current continuity is not satisfied strictly, we can get reasonable results. Also, the response to a small disturbance can be calculated by the regularization, even, when the modeling of source currents. is fairly rough.
引用
收藏
页码：1310 / 1313
页数：4
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