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A non-axisymmetric E  ×  B shear inducing toroidally localized turbulence with an applied magnetic perturbation field in EAST

G.H. Hu, R. Chen, G.S. Xu, H.Y. Guo, Y.W. Sun, Y.F. Liang, J.L. Xie, C. Zhou, X.L. Jin, S. Gu2020年被引用 8Nuclear FusionIF 3出版社

The local E  ×  B shear has been demonstrated to be correlated with control of the 3D structure of turbulence in the edge transport barrier (pedestal) on EAST with edge-localized modes (ELMs) suppressed by externally applied 3D magnetic fields. The toroidal variations in turbulence intensity, spectrum width and eddy tilting are found to be correlated with the local E  ×  B shear, and may thus provide the potential mechanism for 3D-field-induced non-axisymmetric E  ×  B shear in regulation of the turbulence. These new findings may significantly advance the understanding of pedestal transport and structure with applied 3D fields for ELM control, which is critical for next-step fusion development.

日本語訳

局所的なE×Bシアーが、外部印加3次元磁場によってELMが抑制されたEASTの周辺輸送障壁(ペデスタル)における乱流の3次元構造の制御と相関することが実証された。乱流強度、スペクトル幅、および渦の傾きのトロイダル方向の変動は、局所的なE×Bシアーと相関することが見出され、したがって、3次元磁場誘起による非軸対称なE×Bシアーが乱流の制御において潜在的なメカニズムを提供する可能性がある。これらの新たな知見は、ELM制御のための外部印加3次元磁場を伴うペデスタルの輸送と構造の理解を大幅に進展させ得るものであり、これは次世代核融合開発にとって極めて重要である。

装置

east高精度(タイトル一致)

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EASTMagnetic perturbation
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