| 磁场剪切对离子温度梯度模带状流产生的影响 |
| |
| 引用本文： | 陆赫林,陈忠勇,李跃勋,杨恺.磁场剪切对离子温度梯度模带状流产生的影响[J].物理学报,2011,60(8):85202-085202. |
| |
| 作者姓名： | 陆赫林 陈忠勇 李跃勋 杨恺 |
| |
| 作者单位： | 1. 云南民族大学物理系,昆明 650031;
2. 云南师范大学物理与电子信息学院,昆明 650092 |
| |
| 基金项目： | 国家自然科学基金(批准号: 11005090,10805034)和霍英东教育基金(批准号:111006)资助的课题. |
| |
| 摘 要： | 对离子温度梯度模湍流非线性流体方程进行了解耦处理,得到包含磁场剪切效应的带状流与漂移波相互作用的非线性动力学方程.采用调制不稳定性的四波相互作用模型,研究了磁场剪切对带状流产生的影响.研究表明,在k//值较小的范围内,当|k//|增加时,带状流的增长率也呈增加的趋势.
关键词：
托卡马克等离子体
离子温度梯度模湍流
带状流
磁场剪切
|
| 关 键 词： | 托卡马克等离子体 离子温度梯度模湍流 带状流 磁场剪切 |
| 收稿时间： | 2010-08-12 |
Magnetic shear effect on zonal flow generation in ion-temperature-gradient mode turbulence |
| |
| Lu He-Lin,Chen Zhong-Yong,Li Yue-Xun and Yang Kai.Magnetic shear effect on zonal flow generation in ion-temperature-gradient mode turbulence[J].Acta Physica Sinica,2011,60(8):85202-085202. |
| |
| Authors: | Lu He-Lin Chen Zhong-Yong Li Yue-Xun and Yang Kai |
| |
| Institution: | Department of Physics, Yunnan Nationalities University, Kunming 650031, China;School of Physics and Electronic Information Technology, Yunnan Normal University, Kunming 650092, China;Department of Physics, Yunnan Nationalities University, Kunming 650031, China;Department of Physics, Yunnan Nationalities University, Kunming 650031, China |
| |
| Abstract: | By decoupling the nonlinear fluid equations of ion-temperature-gradient (ITG) mode, the zonal flow-drift wave nonlinear dynamical equation including magnetic shear is derived. The role of magnetic shear for zonal flow generation by ITG mode turbulence is studied using a four-wave interaction model of modulational instability. Finally we can draw the conclusion that within a smaller range of k//, as |k//| increases, the growth rate of zonal flow is also increased. |
| |
| Keywords: | tokamak plasmas ion-temperature-gradient mode turbulence zonal flow magnetic shear |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
|
