Seyed Reza Seyednejad (Author), Miha Ravnik (Author)

Abstract

We demonstrate the generation of diverse material flow regimes in nematic liquid cells as driven by time-variable active surface anchoring, including no-net flow, oscillatory flow, steady flow, and pulsating flow. Specifically, we numerically simulate a passive nematic fluid inside a cell bounded with two flat solid boundaries at which the time-dependent anchoring is applied with the dynamically variable surface anchoring easy axis. We show that different flow regimes emerge as the result of different anchoring driving directions (i.e. co-rotating or counter-rotating) and relative phase of anchoring driving. The flow magnitude is tunable by cell thickness and anchoring driving frequency. More generally, this work aims towards possible applications of responsive time-variable surfaces, including photonics or synthetic active matter.

Keywords

fizika mehke snovi;nematski tekoči kristali;površinsko sidranje;soft matter physics;nematic liquid crystals;surface anchoring;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FMF - Faculty of Mathematics and Physics
UDC: 538.9
COBISS: 222641155 Link will open in a new window
ISSN: 1744-683X
Views: 24
Downloads: 3
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: fizika mehke snovi;nematski tekoči kristali;površinsko sidranje;
Type (COBISS): Article
Pages: str. 835-843
Volume: ǂVol. ǂ21
Issue: ǂiss. ǂ5
Chronology: 2025
DOI: 10.1039/D4SM00924J
ID: 25847400