Reorientation of the liquid crystal director in a Hele-Shaw cell |
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| Authors: | M. R. Hakobyan G. S. Gevorgyan R. S. Hakobyan |
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| Affiliation: | (1) Department of Polymer Engineering, The University of Akron, Akron, Ohio 44325-0301, USA;(2) Laboratory of Rheology, Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Pr. 29, 117912 Moscow, Russia |
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| Abstract: | Reorientation of the liquid crystal (LC) director due to hydrodynamical motions in a Hele-Shaw cell is studied theoretically. These motions arise when LC is pushed by viscous stress of a less viscous fluid or gas (e.g., air). We have obtained the value of 1 rad for the probe light wave phase change at the LC film thickness of 100 μm and pressure gradient of dp/dx = 10−5 Pa/m in the air. |
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