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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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Abstract

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.

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ACKNOWLEDGMENTS

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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Authors and Affiliations

  1. Institute for Problems in Mechanical Engineering, Russian Academy of Sciences, 199178, Moscow, Russia

    A. V. Zakharov

  2. Moscow Technological University (MIREA), 119454, Moscow, Russia

    S. V. Pasechnik & G. I. Maksimochkin

Authors
  1. A. V. Zakharov
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  2. S. V. Pasechnik
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  3. G. I. Maksimochkin
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Correspondence to A. V. Zakharov.

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Translated by E. Chernokozhin

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Zakharov, A.V., Pasechnik, S.V. & Maksimochkin, G.I. Effect of an Electric Field and a Temperature Gradient on the Formation of a Hydrodynamic Flow in a Thin Nematic Capillary. Phys. Solid State 60, 2656–2662 (2018). https://doi.org/10.1134/S1063783418120314

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  • DOI: https://doi.org/10.1134/S1063783418120314

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