Adaptive discontinuous galerkin method for transient analysis of eddy current fields in high-speed rotating solid rotors

Siu Lau Ho, Yanpu Zhao, Weinong Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

For transient finite element analysis of eddy-current fields in solid rotors which have invariant material properties, it is convenient to use the Eulerian formulation where only a fixed mesh is needed when modeling motion effect. However, in the Eulerian formulation, a convection-diffusion equation instead of the pure diffusion equation has to be solved. Furthermore, when the rotor rotates at high speeds, the eddy-current fields usually have sharp transition layers over a period of time, thereby making it difficult to solve these fields accurately and effectively. To obtain a high-resolution numerical solution efficiently, an adaptive discontinuous Galerkin method is proposed and numerical examples are reported to showcase the accuracy and effectiveness of the proposed method.
Original languageEnglish
Article number6749014
JournalIEEE Transactions on Magnetics
Volume50
Issue number2
DOIs
Publication statusPublished - 1 Feb 2014

Keywords

  • Adaptive mesh
  • discontinuous Galerkin (DG)
  • eddy-current magnetic field
  • high-speed rotating

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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