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Study of H-mode pedestal predictive model on EAST tokamak

K Li, G Q Li, Q Zang, T Zhang, H Q Liu, H M Xiang, Y Y Li, M F Wu, M Q Wu, X Jian2020年Plasma Physics and Controlled FusionIF 2.2出版社

The pedestal structure of the high-confinement mode (H-mode) operation strongly impacts global confinement and fusion performance in tokamak devices. Studies of the pedestal structure also play an important role in better understanding the characterization of H-mode plasma discharges with type-I edge localized modes on the Experimental Advanced Superconducting Tokamak (EAST). The EPED model has been widely validated to predict the pedestal structure of several tokamak devices. The mean pedestal width correlates with the square root of the poloidal pedestal beta and is in good agreement with from experimental observations. It is also found that the scaling coefficients of and may have no dependence on the heating schemes. The comparison of predictions with measurements indicates that the REPED model could be used to predict the pedestal height for a range of experimental pedestal pressures () on EAST.

日本語訳

高閉じ込めモード(Hモード)運転におけるペデスタル構造は、トカマク装置の全体閉じ込め性能と核融合性能に強く影響を与える。ペデスタル構造の研究は、実験先進超伝導トカマク(EAST)におけるI型周辺局在モード(ELM)を伴うHモードプラズマ放電の特性をより深く理解する上でも重要な役割を果たす。EPEDモデルは、複数のトカマク装置のペデスタル構造を予測するために広く検証されてきた。平均ペデスタル幅はポロイダルペデスタルベータの平方根と相関し、実験観測結果と良好な一致を示す。また、スケーリング係数は加熱方式に依存しない可能性があることが見出された。予測と測定値の比較は、REPEDモデルがEASTにおける実験ペデスタル圧力の範囲に対してペデスタル高さを予測するために使用できることを示している。

装置

east高精度(タイトル一致)

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EASTH-modePedestalH-mode pedestal
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