What Formulation Should One Choose for Modeling a 3D HTS Motor Pole with Ferromagnetic Materials?
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866917701953257472 |
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| author | Dular, Julien Berger, Kévin Geuzaine, Christophe Vanderheyden, Benoît |
| author_facet | Dular, Julien Berger, Kévin Geuzaine, Christophe Vanderheyden, Benoît |
| contents | We discuss the relevance of several finite-element formulations for nonlinear systems containing high-temperature superconductors (HTS) and ferromagnetic materials (FM), in the context of a 3D motor pole model. The formulations are evaluated in terms of their numerical robustness and efficiency. We propose a coupled h-phi-a-formulation as an optimal choice, modeling the problem with an a-formulation in the FM and an h-phi-formulation in the remaining domains. While maintaining a low number of degrees of freedom, the h-phi-a-formulation guarantees a robust resolution and strongly reduces the number of iterations required for handling the nonlinearities of HTS and FM compared to standard formulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2204_06499 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | What Formulation Should One Choose for Modeling a 3D HTS Motor Pole with Ferromagnetic Materials? Dular, Julien Berger, Kévin Geuzaine, Christophe Vanderheyden, Benoît Accelerator Physics We discuss the relevance of several finite-element formulations for nonlinear systems containing high-temperature superconductors (HTS) and ferromagnetic materials (FM), in the context of a 3D motor pole model. The formulations are evaluated in terms of their numerical robustness and efficiency. We propose a coupled h-phi-a-formulation as an optimal choice, modeling the problem with an a-formulation in the FM and an h-phi-formulation in the remaining domains. While maintaining a low number of degrees of freedom, the h-phi-a-formulation guarantees a robust resolution and strongly reduces the number of iterations required for handling the nonlinearities of HTS and FM compared to standard formulations. |
| title | What Formulation Should One Choose for Modeling a 3D HTS Motor Pole with Ferromagnetic Materials? |
| topic | Accelerator Physics |
| url | https://arxiv.org/abs/2204.06499 |