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Parametrisation of target heat flux distribution and study of transport parameters for boundary modelling in W7-X

David Bold, Felix Reimold, Holger Niemann, Yu Gao, Marcin Jakubowski, Carsten Killer, Victoria R. Winters, the W7-X Team2022年被引用 1Nuclear FusionIF 3出版社

Modelling the scrape-off layer (SOL) of a stellarator is challenging due to the complex magnetic 3D geometry. The here presented study analyses simulations of the SOL of the stellarator Wendelstein 7-X using the EMC3-EIRENE code for the magnetic standard configuration. Comparing with experimental observations, the transport model is validated. Based on the experimentally observed strike line width, the anomalous transport coefficients, used as input to the code are determined to around 0.2 m2 s−1. This is however in disagreement with upstream measurements, where such small cross-field transport leads to temperatures higher than measured experimentally.

日本語訳

ステラレータのスクレイプオフ層(SOL)のモデリングは、複雑な3次元磁場形状のため困難である。ここで提示する研究は、磁気標準配位におけるEMC3-EIRENEコードを用いたステラレータWendelstein 7-XのSOLのシミュレーションを解析する。実験観測と比較することで、輸送モデルが検証される。実験的に観測されたストライクライン幅に基づき、コードへの入力として使用される異常輸送係数は約0.2 m² s⁻¹と決定される。しかしながら、これは上流側の測定と矛盾しており、そこではこのような小さな磁場横断輸送は実験的に測定された温度よりも高い温度をもたらす。

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wendelstein-7x高精度(タイトル一致)

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