Modeling of W7-X superconducting coil cool-down using the 4C code

The recently developed 4C thermal-hydraulic code is validated here against experimental data from the cool-down of a non-planar coil of the Wendelstein 7-X stellarator from room temperature to the superconducting transition temperature of ∼10 K, performed during the cold test of the full set of coil...

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