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P. 85

Chapter 4

Simulation of Electromagnetic

Fields

Valerij A. Belyakov, Oleg G. Filatov, Evgenij A. Lamzin, Sergej E. Sytchevsky
JSC D.V. Efremov Scientific Research Institute of Electrophysical Apparatus,
Saint Petersburg, Russia

Chapter Outline
4.1 Introduction 69 4.4.4 3D Computational
4.2 Stationary and Models 104
Quasi-stationary Fields 74 4.4.5 Computation of
4.3 Stationary Field Analysis Potentials: Global and
and Synthesis 76 Local Model
4.3.1 Stationary Field Integration 106
Analysis 76 Appendix A.4.1 Example of
4.3.2 Stationary Field How to Synthesise a
Synthesis 83 Ferromagnetic Insert 108
4.3.3 Ripple of the Tokamak Appendix A.4.2 Examples of
Toroidal Field 90 FE Meshing of Conducting
4.4 Analysis of Electromagnetic Shell Models for ITER
Transients 95 Components 111
4.4.1 Calculation and Appendix A.4.3 Examples of
Methodological Basics 95 3D FE Meshes for Massive
4.4.2 Sources of Transient Conducting Structures
Fields 97 of ITER 113
4.4.3 Global Computational References 114
Models Based on
Conducting Shells 100

4.1 INTRODUCTION

Electromagnetic (EM) processes represent one of the main concerns for toka-
mak operation, especially in view of fusion reactors or experimental test reac-
tors [1–3], such as the ITER [4–6]. These processes take place in all principal
systems of a reactor and may give rise to extremely high electro-mechanical and
thermal loads that are critical for the selection of the reactor configuration and
parameters, primarily for superconducting machines. Therefore, the analysis of

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