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Lattice Boltzmann simulations of cholesteric liquid crystals: Permeative flows, doubly twisted textures and cubic blue phases
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UNSPECIFIED (2005) Lattice Boltzmann simulations of cholesteric liquid crystals: Permeative flows, doubly twisted textures and cubic blue phases. In: 20th Biennial International Liquid Crystal Conference, Ljubljana, SLOVENIA, JUL 04-09, 2004. Published in: MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 435 pp. 845-858. doi:10.1080/15421400590956658 ISSN 1542-1406.
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Official URL: http://dx.doi.org/10.1080/15421400590956658
Abstract
We present a lattice Boltzmann algorithm to solve the Beris-Edwards equations of motion for a cholesteric liquid crystal. We use our algorithm to investigate permeative flow. We find that, for helices pinned at the boundary, a small body force leads to a huge viscosity increase whereas larger ones induce no increase. This shear thinning is in agreement with experiments. If instead, the helix lies perpendicular to the plates, there is almost no viscosity increase. For strong forcing, we identify a flow-induced double twist in the director field. We compare this texture with the static double twist of cubic blue phases.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Journal or Publication Title: | MOLECULAR CRYSTALS AND LIQUID CRYSTALS | ||||
Publisher: | TAYLOR & FRANCIS LTD | ||||
ISSN: | 1542-1406 | ||||
Official Date: | 2005 | ||||
Dates: |
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Volume: | 435 | ||||
Number of Pages: | 14 | ||||
Page Range: | pp. 845-858 | ||||
DOI: | 10.1080/15421400590956658 | ||||
Publication Status: | Published | ||||
Title of Event: | 20th Biennial International Liquid Crystal Conference | ||||
Location of Event: | Ljubljana, SLOVENIA | ||||
Date(s) of Event: | JUL 04-09, 2004 |
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