Hallatschek K
Centre for Interdisciplinary Plasma Science, Max-Planck Institut für Plasmaphysik, EURATOM-IPP Association, D-85748 Garching, Germany.
Phys Rev Lett. 2004 Aug 6;93(6):065001. doi: 10.1103/PhysRevLett.93.065001. Epub 2004 Aug 2.
Current theories of zonal flow dynamics focus on the transport of poloidal momentum. Different from a cylinder, stationary poloidal flows in a tokamak are accompanied by (possibly kinetic) flows along the magnetic field, which maintain incompressibility, and comprise the major part of the flow energy. In numerical turbulence studies, the flows saturate by the turbulent diffusion of the parallel flow, whereas the poloidal momentum transport continues to strongly drive the flows.
当前的带状流动力学理论聚焦于极向动量的输运。与圆柱体不同，托卡马克中的稳态极向流伴随着沿磁场方向的（可能是动力学的）流动，这些流动维持了不可压缩性，并且构成了流动能量的主要部分。在数值湍流研究中，流动通过平行流的湍流扩散达到饱和，而极向动量输运则持续强烈地驱动着这些流动。
