Effect of an Electric Field and a Temperature Gradient on the Formation of a Hydrodynamic Flow in a Thin Nematic Capillary
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A theoretical description of the principles of nonmechanical transportation of microliter volumes of a liquid crystal (LC) encapsulated in a thin capillary is proposed. By numerical methods within a nonlinear generalization of the classical Ericksen–Leslie theory, various regimes of formation of a hydrodynamic flow in a uniformly oriented LC cavity under the action of a temperature gradient and a double electrostatic layer naturally arising at the LC/solid interface are investigated. The sizes of an LC capillary and the parameters of the necessary thermal effect capable of initiating a flow of the LC phase in the horizontal direction are found.
This work was supported by the Russian Foundation for Basic Research (grant no. 16-02-00041a) and the Ministry of Education and Science of the Russian Federation (grants nos. 3.11888.2018/11.12 and 3.9585.2017/8.9).
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