Residual parallel Reynolds stress due to turbulence intensity gradient in tokamak plasmas
Residual parallel Reynolds stress due to turbulence intensity gradient in tokamak plasmas
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DOI：
10.1063/1.3503624
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发表时间：
2010-11
影响因子：
2.2
通讯作者：
Ö. Gürcan;P. Diamond;P. Hennequin;C. McDevitt;X. Garbet;C. Bourdelle
中科院分区：
文献类型：
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作者：
Ö. Gürcan;P. Diamond;P. Hennequin;C. McDevitt;X. Garbet;C. Bourdelle
提出了一种基于湍流强度梯度破缺k∥对称性的托卡马克等离子体残余应力驱动机制。解释了这一机制的物理基础，并描述了它与波动运动方程和波动量通量之间的联系。讨论了它在H型基座上的应用，特别是在内部传输屏障方面的应用。并讨论了热输运对动量通量的影响。
A novel mechanism for driving residual stress in tokamak plasmas based on k∥ symmetry breaking by the turbulence intensity gradient is proposed. The physics of this mechanism is explained and its connection to the wave kinetic equation and the wave-momentum flux is described. Applications to the H-mode pedestal in particular to internal transport barriers, are discussed. Also, the effect of heat transport on the momentum flux is discussed.