Model files / Other numerical methods

Analytical model for AC losses in HTS tapes

This model was shared by João Fernandes, Instituto Superior Técnico, Ulisboa. This work proposes two alternative analytical models to evaluate the AC losses of High-Temperature Superconducting (HTS) tapes during their hysteretic and resistive modes. Two analytical models are proposed, …

Read More

Python and Matlab codes to model HTS tapes under arbitrary external field and transport current via integral method

This model was shared by Calvin C. T. Chow, The University of Hong Kong. These Python and Matlab codes calculate ac loss of HTS tapes that are under two types of non-uniform external field whilst carrying a transport current. The two types are (1) field created by a point current sour …

Read More

AC losses calculation in REBCO coils or stacks

This model can calculate HTS stack/coil with various applied current and magnetic field. Its greatest advantage is the calculating speed could be very fast. The model is calculated by integration method, which was first proposed by Brandt for HTS tape. Here it is extended to ReBCO sta …

Read More

Open source 2-D finite difference method for the simulation of HTS cables

In this work a two-dimensional open source simulation code based on the finite difference method (FDM) has been developed. It is solved by means of the alternating direction implicit routine (ADI). The algorithm has been written in MATLAB language. The method improves computational pe …

Read More

MATLAB scripts for simulation of superconductors (tapes, bars and cylinders)

Scripts for Matlab to simulate superconducting strips, bars and cylinders in various conditions of applied magnetic fields and currents. To find the current distribution, an integral formulation known as Brandt’s method is used.

Read More

3-D numerical simulation with the fast Fourier transform of a magnetic shield and a magnetic lens made of a bulk type II superconductor

The method is efficient and can be easier to implement than the alternative approaches based on the finite element methods.

Read More

Integral equation for thin conductors solved by finite-elements (Comsol)

The model calculates current density/field distribution in a superconducting thin conductors in the presence of a time-dependent transport current, background field or combination thereof (as in the figure below). The superconductor is modeled with a power-law. Dependence of Jc on mag …

Read More