论文标题
用螺旋性限制alfvénic湍流不变
Constraining Alfvénic Turbulence with Helicity Invariants
论文作者
论文摘要
在本文中，我们研究了扩展的磁流失动力学对某些全球湍流特征的扩展磁流失动力学的限制（广义螺旋和能量）。我们表明，只有在某些情况下，全球湍流动能和磁能才能接近均衡。在最小热能的系统中，我们证明了三个不变性群体共同确定与Alfvénic湍流相关的特征长度尺度。
In this paper, we study the constraints imposed by the invariants (generalized helicities and energy) of extended magnetohydrodynamics on some global characteristics of turbulence. We show that the global turbulent kinetic and magnetic energies will approach equipartition only under certain circumstances that depend on the ratio of the generalized helicities. In systems with minimal thermal energy, we demonstrate that the three invariants collectively determine the characteristic length scale associated with Alfvénic turbulence.
