Direct evidence of eddy breaking and tilting by edge sheared flows observed in the TEXTOR tokamak

I. Shesterikov; Y. Xu; C. Hidalgo; M. Berte; P. Dumortier; M. Van Schoor; M. Vergote; G. Van Oost; TEXTOR Team

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Direct evidence of eddy breaking and tilting by edge sheared flows observed in the TEXTOR tokamak

机译：在TEXTOR托卡马克中观察到的边缘剪切流涡流破坏和倾斜的直接证据

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In this letter, we present direct evidence of eddy breaking and tilting events observed at the edge of the TEXTOR tokamak using a 2D gas puff imaging diagnostic. The occurrence of eddy breaking depends on the magnitude of the E_r × B flow shearing rate. The results confirm the theoretical predictions about the influence of E_r × B sheared flows in tilting and splitting turbulence eddies, and consequently, reducing the turbulent transport.

机译：在这封信中，我们提供了使用2D气团成像诊断技术在TEXTOR托卡马克边缘观察到的涡旋破坏和倾斜事件的直接证据。涡旋破坏的发生取决于E_r×B流动剪切速率的大小。结果证实了关于E_r×B剪切流在倾斜和分裂湍流涡流中的影响的理论预测，因此减少了湍流传输。

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来源
《Nuclear fusion》 |2012年第4期|p.042004.1-042004.5|共5页
作者
I. Shesterikov; Y. Xu; C. Hidalgo; M. Berte; P. Dumortier; M. Van Schoor; M. Vergote; G. Van Oost; TEXTOR Team;
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作者单位

Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica, Association 'Euratom-Belgian state', Ecole Royale Militaire - Koninklijke Militaire School, Trilateral Euregio Cluster, B-1000 Brussels, Belgium;

Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica, Association 'Euratom-Belgian state', Ecole Royale Militaire - Koninklijke Militaire School, Trilateral Euregio Cluster, B-1000 Brussels, Belgium;

Laboratorio Nacional de Fusion, Association EURATOM-CIEMAT, 28040 Madrid, Spain;

Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica, Association 'Euratom-Belgian state', Ecole Royale Militaire - Koninklijke Militaire School, Trilateral Euregio Cluster, B-1000 Brussels, Belgium;

Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica, Association 'Euratom-Belgian state', Ecole Royale Militaire - Koninklijke Militaire School, Trilateral Euregio Cluster, B-1000 Brussels, Belgium;

Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica, Association 'Euratom-Belgian state', Ecole Royale Militaire - Koninklijke Militaire School, Trilateral Euregio Cluster, B-1000 Brussels, Belgium;

Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica, Association 'Euratom-Belgian state', Ecole Royale Militaire - Koninklijke Militaire School, Trilateral Euregio Cluster, B-1000 Brussels, Belgium;

Department of Applied Physics, Ghent University, B-9000 Ghent, Belgium;

Institut of Energy and Climate Research - Plasma Physics, Forschungszentrum Jiilich GmbH, Association EURATOM-FZJ, Partner in the Trilateral Euregio Cluster, Jiilich,Germany;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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专利

1. Role of symmetry-breaking induced by E_r × B shear flows on developing residual stresses and intrinsic rotation in the TEXTOR tokamak [J] . Y. Xu, C. Hidalgo, I. Shesterikov, Nuclear fusion . 2013,第7期

机译：E_r×B剪切流引起的对称性破坏对TEXTOR托卡马克中残余应力的产生和内在旋转的作用
2. Evidence for parallel flow shear instability in the edge plasma of the CT-6B tokamak [J] . Wang GD., Yang XZ., Feng CH., Plasma physics and controlled fusion . 1998,第3期

机译：CT-6B托卡马克边缘等离子体中平行流剪切不稳定性的证据
3. E × B shear effect on initially tilted tokamak turbulence eddies [J] . G.J. Choi, T.S. Hahm Nuclear fusion . 2015,第9期

机译：E×B剪切作用对最初倾斜的托卡马克湍流涡流的影响
4. 2-D filament dynamics in high and low shear flows in the edge of the RFX-mod tokamak [C] . G. Grenfell, M. Spolaore, M. Agostini, EPS Conference on Plasma Physics . 2018

机译：在RFX-MOD TOKAMAK边缘的高和低剪切中的2-D灯丝动力学
5. Characterizing the edge of chaos for shear flows. [D] . Kim, Lina. 2009

机译：表征剪切流的混沌边缘。
6. The Assembly and Application of Shear Rings: A Novel Endothelial Model for Orbital Unidirectional and Periodic Fluid Flow and Shear Stress [O] . Luke A. White, Emily V. Stevenson, J. Winny Yun, 2016

机译：剪切环的组装和应用：一种用于轨道单向和周期性流体流动和剪切应力的新型内皮模型
7. Dynamics of tilted eddies in a transversal flow at the edge of tokamak plasmas and the consequences for L–H transition [O] . N Fedorczak, Ph Ghendrih, P Hennequin, 2013

机译：托卡马克等离子体边缘横向流动中倾斜漩涡的动态及L-H转变的后果
8. Trailing Edge Noise Prediction: Large-Eddy Simulation of Wall Bounded Shear Flow Using the Nonlinear Disturbance Equations [R] . Chyczewski, T. S. , Morris, P. J. , Long, L. N. 2000

机译：后缘噪声预测：基于非线性扰动方程的壁面有限剪切流动的大涡模拟

Direct evidence of eddy breaking and tilting by edge sheared flows observed in the TEXTOR tokamak

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