We present the results of experimental investigation of dynamical processes arising in liquid crystal-water emulsion under action of a decay shear flow and ac electric field. The 10 : 1 emulsion, consisting of the well-studied nematic mixture E7 and ionized water was prepared by usage of ultrasonic (29 kHz) mixer. It made possible to get a number of water droplets with the distribution of diameters in the range 2… 20μm. So, the slow decreasing of sizes of these instabilities resulted in corresponding slow motion of the attracted water droplets. The strong electric filled, which stabilized the initial homeotropic orientation of LC suppressed the flow induced instabilities and the slow motion of water droplets mentioned above. It also induced the aggregation of droplets in the vicinity of boundary between regions with strong field and free of field. So, combined action of shear flow and electric field can be effectively used for manipulation of the motion and interaction of water droplets. The obtained results are discussed within the existing theory of liquid crystals.

中文翻译：

---

剪切流和电场作用下液晶-水乳液的动态过程

我们提出了在衰变剪切流和交流电场作用下液晶水乳液中出现的动力学过程的实验研究结果。使用超声波 (29 kHz) 混合器制备由经过充分研究的向列混合物 E7 和离子水组成的 10:1 乳液。它使得获得许多直径分布在 2…20μm 范围内的水滴成为可能。因此，这些不稳定性的尺寸缓慢减小导致所吸引的水滴相应地缓慢运动。强电填充稳定了液晶的初始垂直方向，抑制了上述流动引起的不稳定性和水滴的缓慢运动。它还引起液滴在强场和无场区域之间的边界附近聚集。因此，剪切流和电场的联合作用可以有效地用于操纵水滴的运动和相互作用。所获得的结果在现有的液晶理论中进行了讨论。