On relaxation and transport in gyrokinetic drift wave turbulence with zonal flow
On relaxation and transport in gyrokinetic drift wave turbulence with zonal flow
复制标题
带有纬向流的回旋漂移波湍流的弛豫和输运
DOI：
10.1063/1.3662428
复制
发表时间：
2011
影响因子：
2.2
通讯作者：
P. Diamond
中科院分区：
文献类型：
--
作者：
Y. Kosuga;P. Diamond
我们提出了带向流回旋漂移波湍流在相空间中的驰豫和输运理论。在两种不同的限制条件下，即K>>1和K ≥ 1时，考虑了相空间涡与纬向流的相互作用，其中K是Kubo数。当K>>1时，计算了孤立相干相空间结构的增长，包括相关的纬向流动力学。对于K 1，平均场弛豫动力学被认为是在相空间粒化和带状流的存在下。在这两个限制，它表明，相空间结构的演变方程在结构上类似于相应的Charney-Drazin定理纬向动量平衡的位涡守恒，准地转系统。在相空间密度粒化和带状流的存在下，计算了相空间中的输运通量。纬向流对离子相空间密度演化产生动力学摩擦，这是一种全新的纬向流效应。
We present a theory for relaxation and transport in phase space for gyrokinetic drift wave turbulence with zonal flow. The interaction between phase space eddys and zonal flows is considered in two different limits, namely for K>>1 and K ≃ 1 where K is the Kubo number. For K>>1, the growth of an isolated coherent phase space structure is calculated, including the associated zonal flow dynamics. For K ≃ 1, mean field relaxation dynamics is considered in the presence of phase space granulations and zonal flows. In both limits, it is shown that the evolution equations for phase space structures are structurally similar to a corresponding Charney-Drazin theorem for zonal momentum balance in a potential vorticity conserving, quasi-geostrophic system. The transport flux in phase space is calculated in the presence of phase space density granulations and zonal flows. The zonal flow exerts a dynamical friction on ion phase space density evolution, which is a fundamentally new zonal flow effect.
拉格朗日与欧拉相关性和传输缩放
DOI：
--
发表时间：
2004
期刊：
Plasma Phys.Control.Fusion 46・7
影响因子：
--
作者：
M.Vlad;F.Spineanu;J.H.Misguich;J-D.Reuss;R.Balescu;K.Itoh;S.-I.Itoh
通讯作者：
S.-I.Itoh