---
title: 2-D homogeneous model to estimate AC losses in coated conductor stacks and coils
description: "HTS Modelling Workgroup | Model files\n2-D Homogeneous Model to Estimate AC Losses in Coated Conductor Stacks and Coils"
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---

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# 2-D homogeneous model to estimate AC losses in coated conductor stacks and coils

 by [**administrator**](https://htsmodelling.com/model-files/author/administrator) on Mar 14, 2024, 3:41:29 PM

![homog_2D](https://htsmodelling.com/hs-fs/hubfs/model-files/03-2-d-homogeneous-model/homog_2D.jpg?width=1500&height=528&name=homog_2D.jpg)

#### This model was shared by V. Zermeno, Karlsruhe Institute of Technology.

The model uses a homogenization technique to calculate the current distribution inside the superconducting layers of a HTS stack where each tape carries the same net current as it would be the case in a coil. The model estimates the AC losses of the stack. The homogenized model runs significantly faster than a reference model including the geometry of all the tapes in the stack.

Exemplary result of the magnetic field and the normalized current density J/Jc(**B**) for a stack at different phase values.

Downloads

All model files for Comsol Multiphysics, version 4.3a

[Reference model](https://htsmodelling.com/hubfs/model-files/03-2-d-homogeneous-model/Downloads/Original_64tapes_50A.zip)

[Homogenized model](https://htsmodelling.com/hubfs/model-files/03-2-d-homogeneous-model/Downloads/Homog_64tapes_50A.zip)

References

1. Reference model : [Rodriguez-Zermeno et al. 2011 *IEEE Trans. Appl. Supercond.* **21** (3) 3273-3276](https://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5668901)
2. Homogenized model: [Zermeno et al. 2013 *J. Appl. Phys.* **114** 173901](https://scitation.aip.org/content/aip/journal/jap/114/17/10.1063/1.4827375)

Topics: [REBCO tapes](https://htsmodelling.com/model-files/tag/rebco-tapes) [Finite element method](https://htsmodelling.com/model-files/tag/finite-element-method) [COMSOL](https://htsmodelling.com/model-files/tag/comsol) [2-D](https://htsmodelling.com/model-files/tag/2-d) [Stacks](https://htsmodelling.com/model-files/tag/stacks) [Coils](https://htsmodelling.com/model-files/tag/coils)

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