Disclination motion in liquid crystalline films |
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| Authors: | E I Kats V V Lebedev S V Malinin |
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| Institution: | (1) Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 117940, Russia;(2) Laue-Langevin Institute, F-38042 Grenoble, France;(3) Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;(4) Forschungszentrum Jülich, D-52425 Jülich, Germany |
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| Abstract: | We theoretically study a single disclination motion in a thin free-standing liquid crystalline film. Backflow effects and the own dynamics of the orientational degree of freedom (bond or director angle) are taken into account. We find the orientation field and the hydrodynamic velocity distribution around the moving disclination, which allows us to relate the disclination velocity to the angle gradient far from the disclination. Different cases are examined depending on the ratio of the rotational and shear viscosity coefficients. |
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