New Hybrid FE-FV Method for Computing Current Distribution in 2-D Superconductors: Application to an HTS Cylinder in Transverse Magnetic FieldReportar como inadecuado




New Hybrid FE-FV Method for Computing Current Distribution in 2-D Superconductors: Application to an HTS Cylinder in Transverse Magnetic Field - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 GeePs - Laboratoire Génie électrique et électronique de Paris 2 GREEN - Groupe de Recherche en Electrotechnique et Electronique de Nancy 3 EPM - Ecole Polytechnique de Montreal

Abstract : This paper presents a new numerical method based on finite elements - finite volumes FE-FV for solving 2-D diffusion problems in high temperature superconductors HTS. The approach does not involve directly the resistivity term ρ, generally used to model the EJ characteristic as a power law, i.e EJ = ρJJ, with ρJ ∝ Jn−1. Instead, we use a JE constitutive law J ∝ E 1 , with E = E e z a single component, which leads to a scalar non-linear differential equation. After presenting in details the developments, the method is tested in the case of a superconducting cylinder submitted to a transverse magnetic field. The current density obtained is compared to another numerical technique the semi-analytical method in order to validate the results. Although not fully optimized yet, it appears that the proposed method is very stable, especially for large n-values greater than 100.





Autor: Abelin Kameni - Denis Netter - Frédéric Sirois - Bruno Douine - Jean Lévêque -

Fuente: https://hal.archives-ouvertes.fr/



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