Modeling the free-surface magnetohydrodynamics of thick liquid metal walls for fusion
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866912160342343680 |
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| author | Giovacchini, Valentina Favre, Eric Volpe, Francesco A. |
| author_facet | Giovacchini, Valentina Favre, Eric Volpe, Francesco A. |
| contents | Renaissance Fusion proposes thick liquid metal walls as plasma-facing components for future commercial fusion reactors. It designs and operates proof-of-concept experiments aiming at actively suspending and stabilizing a flowing free-surface liquid metal layer against gravity using Lorentz forces. The first operating prototype consists of a 1 m-diameter chamber in the presence of a magnetic field of the order of 0.3 T. A GaInSn flow is injected inside the chamber, and it is actively suspended thanks to the injection of currents up to 3 kA. To simulate the prototype, a numerical tool capable of modeling magnetohydrodynamics phenomena in two-phase flows has been developed to reproduce and interpret the experimental results. The tool relies on the low-magnetic Reynolds assumption, implements the Volume-of-Fluid method for tracking the free-surface, and couples the electric potential in both fluid and solid domains. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_13598 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Modeling the free-surface magnetohydrodynamics of thick liquid metal walls for fusion Giovacchini, Valentina Favre, Eric Volpe, Francesco A. Fluid Dynamics Applied Physics Renaissance Fusion proposes thick liquid metal walls as plasma-facing components for future commercial fusion reactors. It designs and operates proof-of-concept experiments aiming at actively suspending and stabilizing a flowing free-surface liquid metal layer against gravity using Lorentz forces. The first operating prototype consists of a 1 m-diameter chamber in the presence of a magnetic field of the order of 0.3 T. A GaInSn flow is injected inside the chamber, and it is actively suspended thanks to the injection of currents up to 3 kA. To simulate the prototype, a numerical tool capable of modeling magnetohydrodynamics phenomena in two-phase flows has been developed to reproduce and interpret the experimental results. The tool relies on the low-magnetic Reynolds assumption, implements the Volume-of-Fluid method for tracking the free-surface, and couples the electric potential in both fluid and solid domains. |
| title | Modeling the free-surface magnetohydrodynamics of thick liquid metal walls for fusion |
| topic | Fluid Dynamics Applied Physics |
| url | https://arxiv.org/abs/2412.13598 |