Title :
Comparison of numerical methods for modeling of superconductors
Author :
Stavrev, Svetlomir ; Grilli, Francesco ; Dutoit, Bertrand ; Nibbio, Nadia ; Vinot, Emmanuel ; Klutsch, Iszabela ; Meunier, Gerard ; Tixador, Pascal ; Yang, Yifeng ; Martinez, Elena
Author_Institution :
Swiss Fed. Inst. of Technol., Lausanne, Switzerland
fDate :
3/1/2002 12:00:00 AM
Abstract :
Different finite-element method (FEM) formulations have been developed in order to model the electromagnetic behavior of type-II superconductors. This 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 alternating current (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
Keywords :
current distribution; finite element analysis; magnetic leakage; superconducting tapes; type II superconductors; A-V formulation models; AC losses; FEM software packages; FLUX2D; FLUX3D; alternating current; applied magnetic field; applied transport current; complex geometry; current distributions; electromagnetic behavior; finite-element method formulations; numerical methods; power-law current-voltage characteristics; self-field; superconducting tapes; type-II superconductors; Analytical models; Current-voltage characteristics; Electromagnetic modeling; Finite element methods; Geometry; Magnetic fields; Numerical models; Software packages; Solid modeling; Superconductivity;
Journal_Title :
Magnetics, IEEE Transactions on
