Jackson David P, Miranda José A
Department of Physics and Astronomy, Dickinson College, Carlisle, Pennsylvania 17013, USA.
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Jan;67(1 Pt 2):017301. doi: 10.1103/PhysRevE.67.017301. Epub 2003 Jan 24.
We perform a detailed analytic and numerical study of the evolution of a ferrofluid drop confined to a rotating Hele-Shaw cell in the presence of an azimuthal magnetic field. Our results demonstrate that the centrifugally driven interfacial instabilities can be simply controlled with the use of a current-carrying wire. We compare an analytic linear analysis to our computational results and show that a number of observed features cannot be explained by linear theory alone, including a "diamond ring" instability that results when a droplet is nearly stabilized.
我们对处于旋转的赫勒肖盒中的铁磁流体液滴在方位磁场作用下的演化进行了详细的分析和数值研究。我们的结果表明，通过使用载流导线可以简单地控制离心驱动的界面不稳定性。我们将解析线性分析与我们的计算结果进行了比较，结果表明，包括液滴接近稳定时出现的“钻石环”不稳定性在内的许多观测特征不能仅用线性理论来解释。
