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逆磁效应对交换模湍流产生的带状流的影响
Diamagnetic effect on zonal flow generation in interchange mode turbulence
【摘要】 运用并扩展了Guzdar等人提出的一种简单的低维模型,讨论了交换模湍流中的非线性逆磁效应对带状流产生的影响,通过对非线性演化方程的数值计算,得到如下结论:逆磁效应能抑制通常的(雷诺胁强驱动的)极化非线性效应,由此导致带状流的阻尼.
【Abstract】 The simple low-dimensional model proposed by Guzdar and co-workers has been extended and applied to study the nonlinear diamagnetic effect on zonal flow in interchange turbulence.Based on the numerical solution to the derived nonlinear equations,we can draw the conclusion: diamagnetic effect suppresses the enhancement of the normal polarized drift nonlinearity,which could lead to the damping of zonal flow.
【关键词】 托卡马克等离子体;
交换模湍流;
带状流;
逆磁效应;
【Key words】 plasmas; interchange mode turbulence; zonal flow; diamagnetic effect;
【Key words】 plasmas; interchange mode turbulence; zonal flow; diamagnetic effect;
【基金】 国家自然科学基金委(批准号:10775100,10775043,90503008);兰州重离子加速器国家实验原子核理论中心基金资助的课题~~
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2009年09期
- 【分类号】O357.5
- 【被引频次】1
- 【下载频次】56