Publication

Comparison of Numerical Methods for Modelling of Superconductors

Francesco Grilli, Bertrand Dutoit, Yong Yang, Bertrand Dutoit
2002
Journal Articles

Résumé

Different FEM formulations have been developed in order to model the electromagnetic behaviour of type II super-conductors. The paper presents a comparison between simulations with A-V formulation models implemented in two FEM software packages (FLUX2D and FLUX3D) and a numerical method based on analytical model for superconductors in applied magnetic field. These models can be used for superconductors with complex geometry and power-law current-voltage characteristics. Simulated is a 37-filamentary tape with applied transport current in self-field and AC magnetic field parallel to the wide side of the tape. A good agreement is found between the AC loss and current distributions obtained with the different models.

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https://infoscience.epfl.ch/entities/publication/fcda3743-767d-4a91-b669-8e6653ce5f7b

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Francesco Grilli, Bertrand Dutoit, Yong Yang, Bertrand Dutoit
2002
Journal Articles

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/fcda3743-767d-4a91-b669-8e6653ce5f7b

À propos de ce résultat

Concepts associés (32)

Analyse numérique

L’analyse numérique est une discipline à l'interface des mathématiques et de l'informatique. Elle s’intéresse tant aux fondements qu’à la mise en pratique des méthodes permettant de résoudre, par des calculs purement numériques, des problèmes d’analyse mathématique. Plus formellement, l’analyse numérique est l’étude des algorithmes permettant de résoudre numériquement par discrétisation les problèmes de mathématiques continues (distinguées des mathématiques discrètes).

Champ magnétique

En physique, dans le domaine de l'électromagnétisme, le champ magnétique est une grandeur ayant le caractère d'un champ vectoriel, c'est-à-dire caractérisée par la donnée d'une norme, d’une direction et d’un sens, définie en tout point de l'espace et permettant de modéliser et quantifier les effets magnétiques du courant électrique ou des matériaux magnétiques comme les aimants permanents.

Numerical methods for ordinary differential equations

Numerical methods for ordinary differential equations are methods used to find numerical approximations to the solutions of ordinary differential equations (ODEs). Their use is also known as "numerical integration", although this term can also refer to the computation of integrals. Many differential equations cannot be solved exactly. For practical purposes, however – such as in engineering – a numeric approximation to the solution is often sufficient. The algorithms studied here can be used to compute such an approximation.

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