On Kinetic Resistive Wall Mode Theory with Sheared Rotation
On Kinetic Resistive Wall Mode Theory with Sheared Rotation
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DOI：
10.1585/pfr.9.3403027
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发表时间：
2014-04
影响因子：
0.8
通讯作者：
J. Shiraishi;N. Miyato-;G. Matsunaga
中科院分区：
文献类型：
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作者：
J. Shiraishi;N. Miyato-;G. Matsunaga
为了研究环向旋转剪切对电阻壁模（RWM）稳定性的影响，将动力学RWM公式扩展到包含一般平衡旋转。从具有剪切转动的导引中心拉格朗日量出发，推广了动力学共振的能量泛函。基于广义能量泛函，导出了一个新的色散关系式。对新色散关系的数值分析表明，旋转剪切可以降低RWM的生长速率。
To study toroidal rotation shear effect on Resistive Wall Mode (RWM) stability, kinetic RWM formulation is extended to include general equilibrium rotation. By starting from the guiding-center Lagrangian with sheared rotation, an energy functional of kinetic resonance is generalized. Based on the generalized energy functional, a new dispersion relation is derived in the large aspect ratio limit. Numerical analysis of the new dispersion relation indicates that the rotation shear can reduce the growth rates of the RWMs.