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PreprintarXiv licencearXiv

Winding-Pack Quench Simulation of Stellarator Coils: Hydraulic Field-Network Coupling and Transverse Heat Conduction in OPENSC2

  • Laura A. M. D'Angelo
  • Felix Warmer
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Abstract

Quench propagation in cable-in-conduit conductors is thermo-hydraulically driven, yet existing 1D models treat a conductor as one straight adiabatic cable with prescribed pressure and mass-flow boundaries, so secondary quenches and flow redistribution between windings cannot be resolved. We extend the open-source code OPENSC2 with transverse heat conduction between turns, a 3D field resolving the current-sharing temperature, induced losses, and a lumped hydraulic network coupled to the conductors by a mass-flow formulation. Validated against the 2006 W7-X coil tests, it predicts the quench site, cuts the outlet-temperature error from 55 K to 12 K, and reproduces the neighboring windings' heating as flow reversal through the coil inlet.

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Cite

BibTeXRIS
BibTeX
@misc{dangelo2026windingpack,
  title = {{Winding-Pack Quench Simulation of Stellarator Coils: Hydraulic Field-Network Coupling and Transverse Heat Conduction in OPENSC$^2$}},
  author = {Laura A. M. D'Angelo and Felix Warmer},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.08084},
  eprint = {2611.08084},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.08084},
}
RIS
TY  - UNPB
TI  - Winding-Pack Quench Simulation of Stellarator Coils: Hydraulic Field-Network Coupling and Transverse Heat Conduction in OPENSC^2
AU  - Laura A. M. D'Angelo
AU  - Felix Warmer
PY  - 2026
DA  - 2026/11/05
PB  - arXiv
DO  - 10.48550/arxiv.2611.08084
UR  - https://arxiv.org/abs/2611.08084
AB  - Quench propagation in cable-in-conduit conductors is thermo-hydraulically driven, yet existing 1D models treat a conductor as one straight adiabatic cable with prescribed pressure and mass-flow boundaries, so secondary quenches and flow redistribution between windings cannot be resolved. We extend the open-source code OPENSC^2 with transverse heat conduction between turns, a 3D field resolving the current-sharing temperature, induced losses, and a lumped hydraulic network coupled to the conductors by a mass-flow formulation. Validated against the 2006 W7-X coil tests, it predicts the quench site, cuts the outlet-temperature error from 55 K to 12 K, and reproduces the neighboring windings' heating as flow reversal through the coil inlet.
ER  -