Flow manipulation of a nematic liquid crystal in a Hele-Shaw cell with an electrically-controlled viscous obstruction

Cousins, J, Bhadwal, A ORCID: https://orcid.org/0000-0002-6700-2604, Mottram, N, Brown, C ORCID: https://orcid.org/0000-0002-1559-3238 and Wilson, S, 2024. Flow manipulation of a nematic liquid crystal in a Hele-Shaw cell with an electrically-controlled viscous obstruction. Journal of Fluid Mechanics, 996: R1. ISSN 0022-1120

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Abstract

The flow of a nematic liquid crystal in a Hele-Shaw cell with an electrically controlled viscous obstruction is investigated using both a theoretical model and physical experiments. The viscous obstruction is created by temporarily electrically altering the viscosity of the nematic in a region of the cell across which an electric field is applied. The theoretical model is validated experimentally for a circular cylindrical obstruction, demonstrating user-controlled flow manipulation of an anisotropic liquid within a heterogeneous single-phase microfluidic device.

Item Type:	Journal article
Publication Title:	Journal of Fluid Mechanics
Creators:	Cousins, J., Bhadwal, A., Mottram, N., Brown, C. and Wilson, S.
Publisher:	Cambridge University Press
Date:	30 September 2024
Volume:	996
ISSN:	0022-1120
Identifiers:	Number Type 10.1017/jfm.2024.397 DOI 1894107 Other
Rights:	© the author(s), 2024. Published by Cambridge University Press. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/ licenses/by/4.0), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Divisions:	Schools > School of Science and Technology
Record created by:	Laura Ward
Date Added:	14 May 2024 08:36
Last Modified:	02 Oct 2024 11:45
URI:	https://irep.ntu.ac.uk/id/eprint/51431

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