Journal article
Towards Faster FEM Simulation of Thin Film Superconductors: A Multiscale Approach
Dynamical systems, Department of Mathematics, Technical University of Denmark1
Department of Mathematics, Technical University of Denmark2
Electric Components, Department of Electrical Engineering, Technical University of Denmark3
Department of Electrical Engineering, Technical University of Denmark4
Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark5
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark6
Risø National Laboratory for Sustainable Energy, Technical University of Denmark7
This work presents a method to simulate the electromagnetic properties of superconductors with high aspect ratio such as the commercially available second generation superconducting YBCO tapes. The method is based on a multiscale representation for both thickness and width of the superconducting domains.
A couple of test cases were successfully simulated and further investigations were made by means of structured (mapped) meshes. Here, large aspect ratio elements were used to simulate thin material layers with a reduced number of elements. Hence, more complex geometries can be studied at considerable lower computational time.
Several test cases were simulated including transport current, externally applied magnetic field and a combination of both. The results are in good agreement with recently published numerical simulations. The computational time to solve the present multiscale approach in 2D is estimated as two orders of magnitude faster than other 2D methods.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2011 |
| Pages: | 3273-3276 |
| ISSN: | 15582515 , 10518223 and 23787074 |
| Types: | Journal article |
| DOI: | 10.1109/TASC.2010.2091388 |
| ORCIDs: | Mijatovic, Nenad , Træholt, Chresten , Abrahamsen, Asger Bech and Sørensen, Mads Peter |
AC losses Coils Computational modeling Conductors FEM simulation Superconducting epitaxial layers Superconducting magnets Wire YBCO electromagnetic properties externally applied magnetic field finite element analysis finite element methods high temperature superconductors high-temperature superconductors large aspect ratio elements multiscale approach second generation superconducting YBCO tapes structured meshes superconducting coils superconducting tapes superconducting thin films thin film superconductors transport current transport processes yttrium compounds
