Electromagnetics - Modelling, Simulation, Control and Industrial Applications - Abstract
Schöberl, Joachim
We target on the numerical simulation of electrical machines such as transformers and motors. The model is the Eddy current (low-frequency) approximation of the Maxwell equations. We discuss state of the art finite element techniques including high order finite elements and preconditioning. We present results on Schwarz methods, and recent progress on parallel (BDDC-type) domain decomposition methods. Electrical machines often involve layered material to reduce eddy currents. We present a two-scale finite element method for modeling such laminates. One particular difficulty in machines with moving and rotating parts is the discretization of the interface conditions on non-matching meshes. Here, we present a hybrid Nitsche method using B-spline spaces for the interface variable.