Electrorheological response of a nematic liquid crystal confined in the region between two coaxial and rotating circular cylinders is studied theoretically. Utilizing weak anchoring conditions, the physical properties of 4-n-pentyl-4-cyanobiphenyl (5CB), nonslip boundary conditions, and contrasting surface anchoring energies, we numerically obtain the equilibrium configurations for the nematic director under the influence of an external low-frequency radial electric field and the corresponding (angular) velocity profiles. The Fréedericksz transition is parametrized by the cylinders' radii ratio for different values of the surface energies. The averaged apparent viscosity of the nematic is calculated also.

中文翻译：

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由具有不同锚定能的两个圆柱面约束的向列型液晶的电流变行为的理论研究

理论上研究了局限在两个同轴和旋转圆柱之间的向列液晶的电流变响应。利用弱锚固条件，4-正戊基-4-氰基联苯（5CB）的物理性质，防滑边界条件和对比的表面锚固能，我们在外部低碳的影响下以数值方式获得了向列导向剂的平衡构型。频率径向电场和相应的（角）速度曲线。对于不同的表面能值，圆柱的半径比可以对Fréedericksz过渡进行参数化。还计算向列型的平均表观粘度。