论文标题
非高斯湍流推高的准均匀小型磁场的固定溶液
Stationary solution for quasi-homogeneous small-scale magnetic field advected by non-Gaussian turbulent flow
论文作者
论文摘要
我们考虑通过外力激发的磁场波动，并以各向同性湍流为导致。似乎非高斯速度梯度统计和泵浦力的有限区域提供了固定溶液的存在。根据任意速度梯度统计数据计算平均方磁场。速度上磁场可能反馈的估计值表明，对于广泛的参数，即使在强烈泵送磁场的情况下，也会发生无反馈的平稳性。
We consider fluctuations of magnetic field excited by external force and advected by isotropic turbulent flow. It appears that non-Gaussian velocity gradient statistics and finite region of pumping force provide the existence of stationary solution. The mean-square magnetic field is calculated for arbitrary velocity gradient statistics. An estimate for possible feedback of magnetic field on velocity shows that, for wide range of parameters, stationarity without feedback would take place even in the case of intensive pumping of magnetic field.
