The Stabilizing Effect of an Electric Field on the Shear Flow of Nematic Liquid Crystals When α3>0: Flow Alignment Regained
The Stabilizing Effect of an Electric Field on the Shear Flow of Nematic Liquid Crystals When α3>0: Flow Alignment Regained
复制标题
当α3>0时电场对向列液晶剪切流的稳定作用：重新获得流动排列
DOI：
10.1080/00268948108082153
复制
发表时间：
1981
影响因子：
0.7
通讯作者：
K. Skarp
中科院分区：
文献类型：
--
作者：
T. Carlsson;K. Skarp
摘要研究了α为3>；0的向列相液晶的剪切流动。结果表明，在样品上施加电场，只要电场超过计算的临界值，就可以得到稳定的边界层型流动。给出了流动对齐角、边界层和弛豫时间随电场的变化关系，并讨论了引向器相对于将其带出剪切面的起伏的稳定性。将所得结果与已知的α3<；0时和不加电场时的剪切流的相应表达式进行比较，可以看出这两种流动是非常相似的。
Abstract Shear flow of a nematic liquid crystal with α3>0 is studied. It is shown that applying an electric field across the sample, a stable boundary layer type of flow can be obtained provided the field exceeds a critical value which is calculated. Expressions for the flow alignment angle, the boundary layer and the relaxation time are given as functions of the electric field and the stability of the director with respect to fluctuations which will take it out of the shear plane is discussed. By comparing the results to the well known corresponding expressions for shear flow when α3 < 0 and without an electric field applied, it can be seen that the two types of flow are very similar.