An A-$\phi$ Scheme for Type-II Superconductors

An A-$\phi$ Scheme for Type-II Superconductors

Year:    2017

East Asian Journal on Applied Mathematics, Vol. 7 (2017), Iss. 4 : pp. 658–678

Abstract

A fully discrete A-$\phi$ finite element scheme for a nonlinear model of type-II superconductors is proposed and analyzed. The nonlinearity is due to a field dependent conductivity with the regularized power-law form. The challenge of this model is the error estimate for the nonlinear term under the time derivative. Applying the backward Euler method in time discretisation, the well-posedness of the approximation problem is given based on the theory of monotone operators. The fully discrete system is derived by standard finite element method. The error estimate is suboptimal in time and space.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/eajam.141016.300517a

East Asian Journal on Applied Mathematics, Vol. 7 (2017), Iss. 4 : pp. 658–678

Published online:    2017-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    21

Keywords:    Nonlinearity finite element methods well-posedness convergence error estimates.