198 citations · 1.8k across the 37 of their papers we have counts for
39 papers
Competing routes to spontaneous flow in confined active nematics
Rahil N. Valani, Vedad Dzanic, Sumesh P. Thampi +1
Active nematics can spontaneously develop flow beyond a critical activity in confined geometries. We show analytically that the onset of flow is governed by two competing instabili…
Active flows drive anchoring of nematics at rigid walls
Michael Fang, Ioannis Hadjifrangiskou, Sumesh P. Thampi +2
Although confinement strongly influences flows in active materials, it remains unclear how active particles align at rigid boundaries when no thermodynamic anchoring is imposed. We…
Bridging Elastic and Active Turbulence
Vedad Dzanic, Sumesh P. Thampi, Julia M. Yeomans
Remarkably, even under negligible inertia, the addition of microstructural agents can generate chaotic flow fields. Such behavior can arise in polymer solutions, leading to elastic…
Low-Pass Filtering of Active Turbulent Flows to Liquid Substrates
Gianmarco Spera, Julia M. Yeomans, Sumesh P. Thampi
To study the impact of active systems on their surroundings, we introduce a model that couples an active nematic fluid to an isotropic substrate fluid via friction. We numerically…
From Equilibrium Multistability to Spatiotemporal Chaos in Channel Flows of Nematic Fluids
Rahil N. Valani, Sumesh Thampi, Julia M. Yeomans
We investigate channel-confined, nematic liquid crystals using the Beris-Edwards model of nematohydrodynamics. Using strong homeotropic anchoring at the walls, we find multistabili…
Why Extensile and Contractile Tissues Could be Hard to Tell Apart
Jan Rozman, Sumesh P. Thampi, Julia M. Yeomans
Active nematic models explain the topological defects and flow patterns observed in epithelial tissues, but the nature of active stress-whether it is extensile or contractile, a ke…