Discontinuous Galerkin Finite Elements in Time Domain Eddy-Current Problems
Discontinuous Galerkin Finite Elements in Time Domain Eddy-Current Problems
复制标题
时域涡流问题中的间断伽辽金有限元
DOI：
10.1109/tmag.2009.2012604
复制
发表时间：
2009
影响因子：
2.1
通讯作者：
K. Preis
中科院分区：
文献类型：
--
作者：
O. Bíró;K. Preis
提出了一种基于磁矢量势公式的不连续伽辽金有限元方法来求解时域涡流问题。涡流区域的质量矩阵是块对角线的，允许明确的时间步进，而不必在这里求解一个大的代数系统。传统的有限单元，导致良好条件的系统矩阵，用于涡流自由域。这两个地区的时间步长不同。通过一个简单的二维算例说明了该方法。
A discontinuous Galerkin finite element approach is presented to solve eddy-current problems in the time domain based on a magnetic vector potential formulation. The mass matrix in the eddy-current region is block-diagonal allowing explicit time stepping without having to solve a large algebraic system here. Traditional finite elements, leading to well conditioned system matrices, are used in the eddy-current free domain. The time steps are different in the two regions. The method is illustrated by a simple two-dimensional example.