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Permeative flows in cholesteric liquid crystals.

Abstract:

We use lattice Boltzmann simulations to solve the Beris-Edwards equations of motion for a cholesteric liquid crystal subjected to Poiseuille flow along the direction of the helical axis (permeative flow). The results allow us to clarify and extend the approximate analytic treatments currently available. We find that if the cholesteric helix is pinned at the boundaries there is an enormous viscosity increase. If, instead, the helix is free the velocity profile is flattened, but the viscosity i...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Role:
Author
Journal:
Physical review letters
Volume:
92
Issue:
18
Pages:
188301
Publication date:
2004-05-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:d24a7a5a-c585-4ce2-98c7-f478c3ec65bd
Source identifiers:
30908
Local pid:
pubs:30908

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