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Eddy current calculation including moving conductors using the finite integration method. (English) Zbl 0970.78009

Neittaanmäki, Pekka (ed.) et al., ENUMATH 99. Numerical mathematics and advanced applications. Proceedings of the 3rd European conference, Jyväskylä, Finland, July 26-30, 1999. Singapore: World Scientific. 206-213 (2000).
Summary: Recently introduced time domain formulations based on the Maxwell-grid-equations of the finite integration method (FI) allow to calculate magnetoquasistatic electromagnetic fields with various implicit time-stepping techniques. In this paper one of these finite-difference-implicit-time-domain (FDITD) formulations is extended to consider the effects of an unidirectional motion of conductors within the computational domain. A moving-coordinate scheme suited for high Peclet numbers and a fixed-coordinate formulation are presented on the basis of the Maxwell-grid-equations. The resulting large algebraic systems of equations are solved by iterative methods for each time step. Numerical results are compared to those of finite element simulations of a test problem configuration.
For the entire collection see [Zbl 0954.00041].

MSC:

78M20 Finite difference methods applied to problems in optics and electromagnetic theory
78A30 Electro- and magnetostatics
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