Title: A novel approach to magnetic divertor configuration design
Authors: Blommaert, Maarten ×
Baelmans, Martine
Dekeyser, Wouter
Gauger, Nicolas
Reiter, Detlev #
Issue Date: Aug-2015
Publisher: Elsevier
Series Title: Journal of Nuclear Materials vol:463 pages:1220-1224
Conference: International Conference on Plasma Surface Interactions edition:21 location:Kanazawa, Japan date:26-30 May 2014
Abstract: Divertor exhaust system design and analysis tools are crucial to evolve from experimental fusion reactors towards commercial power plants. In addition to material research and dedicated vessel geometry design, improved magnetic configurations can contribute to sustaining the diverted heat loads. Yet, computational design of the magnetic divertor is a challenging process involving a magnetic equilibrium solver, a plasma edge grid generator and a computationally demanding plasma edge simulation. In this paper, an integrated approach to efficient sensitivity calculations is discussed and applied to a set of slightly reduced divertor models. Sensitivities of target heat load performance to the shaping coil currents are directly evaluated. Using adjoint methods, the cost for a sensitivity evaluation is reduced to about two times the simulation cost of one specific configuration. Further, the use of these sensitivities in an optimal design framework is illustrated by a case with realistic Joint European Torus (JET) configurational parameters.
ISSN: 0022-3115
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Applied Mechanics and Energy Conversion Section
× corresponding author
# (joint) last author

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