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Development and application of a predictive model for advanced tokamak scenario design

Raphael Schramm, Alexander Bock, Emiliano Fable, Jörg Stober, Marc Maraschek, Maximilian Reisner, Rainer Fischer, Hartmut Zohm, the ASDEX-Upgrade Team2024年Nuclear FusionIF 3出版社

Advanced tokamak (AT) scenarios applying additional heating during the current ramp (early-heating) usually require many iterations if developed fully empirically. To reduce the required experimental time, a model has been developed in the ASTRA framework, capable of doing predictive simulations of the relevant parameters. As scenario development requires fast iterations and inter-discharge runs, a sufficiently short run-time is required. While using a simplified transport model to achieve this, comparisons to experimental data from ASDEX-Upgrade (AUG) still show good agreement. Using this model, a new high performance early-heating AT scenario has been developed and successfully run on AUG with the results matching the predictions.

日本語訳

先進トカマク(AT)シナリオにおいて、電流ランプ中に追加加熱を適用する(早期加熱)場合、完全に経験的に開発すると通常多くの反復を必要とする。必要な実験時間を短縮するため、関連するパラメータの予測シミュレーションが可能なモデルがASTRAフレームワーク内で開発された。シナリオ開発には迅速な反復とインターディスチャージ(放電間)実行が必要であるため、十分に短い実行時間が要求される。これを達成するために簡略化された輸送モデルを用いているが、ASDEX-Upgrade(AUG)からの実験データとの比較は依然として良好な一致を示している。このモデルを用いて、新しい高性能な早期加熱ATシナリオが開発され、AUGで正常に実行され、結果は予測と一致した。

装置

asdex-upgrade中精度(概要文一致)

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Advanced tokamak
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