Laboratoire de Physique Statistique, CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, 75005 Paris, France.
Philos Trans A Math Phys Eng Sci. 2010 Apr 13;368(1916):1595-605. doi: 10.1098/rsta.2009.0250.
We present a review of the different models that have been proposed to explain reversals of the magnetic field generated by a turbulent flow of an electrically conducting fluid (fluid dynamos). We then describe a simple mechanism that explains several features observed in palaeomagnetic records of the Earth's magnetic field, in numerical simulations and in a recent dynamo experiment. A similar model can also be used to understand reversals of large-scale flows that often develop on a turbulent background.
我们对提出的不同模型进行了综述，这些模型旨在解释由导电流体（流体发电机）的湍流产生的磁场反转。然后，我们描述了一个简单的机制，该机制可以解释在地球磁场的古地磁记录、数值模拟和最近的发电机实验中观察到的几个特征。类似的模型也可用于理解在通常在湍流背景下发展的大规模流动的反转。
