Publication

Comparison of Numerical Methods for Modelling of Superconductors

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

Abstract

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.

Official source

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

Abstract

Official source

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

About this result

Related concepts (32)

Numerical analysis

Numerical analysis is the study of algorithms that use numerical approximation (as opposed to symbolic manipulations) for the problems of mathematical analysis (as distinguished from discrete mathematics). It is the study of numerical methods that attempt at finding approximate solutions of problems rather than the exact ones. Numerical analysis finds application in all fields of engineering and the physical sciences, and in the 21st century also the life and social sciences, medicine, business and even the arts.

Magnetic field

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets.

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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