Results 31 to 40 of about 4,695,040 (225)
Interplay of Active Stress and Driven Flow in Self-Assembled, Tumbling Active Nematics
Crystals, 2021 Lyotropic chromonic liquid crystals (LCLCs) are a special type of hierarchical material in which self-assembled molecular aggregates are responsible for the formation of liquid crystal phases.
Weiqiang Wang, Rui Zhang
doaj +1 more source
Nature Communications, 2018 AbstractActive matter extracts energy from its surroundings at the single particle level and transforms it into mechanical work. Examples include cytoskeleton biopolymers and bacterial suspensions. Here, we review experimental, theoretical and numerical studies of active nematics - a type of active system that is characterised by self-driven units with
Doostmohammadi, A +3 more
openaire +5 more sources
Mesoscopic simulations of active nematics
Science Advances, 2022 Coarse-grained, mesoscale simulations are invaluable for studying soft condensed matter because of their ability to model systems in which a background solvent plays a substantial role but is not the primary interest. Such methods generally model passive solvents; however, far-from-equilibrium systems may also be composed of complex solutes suspended ...
Kozhukhov, Timofey, Shendruk, Tyler N.
openaire +3 more sources
Theory of nematic and polar active fluid surfaces
Physical Review Research, 2022 We derive a fully covariant theory of the hydrodynamics of nematic and polar active surfaces, subjected to internal and external forces and torques. We study the symmetries of polar and nematic surfaces and find that in addition to five different types ...
Guillaume Salbreux +3 more
doaj +1 more source
Exploring regular and turbulent flow states in active nematic channel flow via Exact Coherent Structures and their invariant manifolds [PDF]
Physical Review Fluids, 2023 This work is a unified study of stable and unstable steady states of 2D active nematic channel flow using the framework of Exact Coherent Structures (ECS).
Caleb G. Wagner +4 more
semanticscholar +1 more source
Active nematics with quenched disorder [PDF]
Physical Review E, 2020 We introduce a two-dimensional active nematic with quenched disorder. We write the coarse-grained hydrodynamic equations of motion for slow variables, viz. density, and orientation. Disorder strength is tuned from zero to large values. Results from the numerical solution of equations of motion as well as the calculation of two-point orientation ...
Sameer Kumar, Shradha Mishra
openaire +3 more sources
Machine learning forecasting of active nematics [PDF]
Soft Matter, 2021 Our model is unrolled to map an input orientation sequence (from time t-8 to t-1) to an output one (t,t + 1…) with trajectray tracing. Cyan labels are −1/2 defect while purple ones are +1/2.
Zhengyang Zhou +8 more
openaire +3 more sources
Flow patterns and defect dynamics of active nematic liquid crystals under an electric field. [PDF]
Physical Review E, 2023 The effects of an electric field on the flow patterns and defect dynamics of two-dimensional active nematic liquid crystals are numerically investigated.
Yutaka Kinoshita, N. Uchida
semanticscholar +1 more source
Biphasic, Lyotropic, Active Nematics [PDF]
Physical Review Letters, 2014 7 pages, 8 ...
Matthew L. Blow +2 more
openaire +4 more sources
Active nematics with deformable particles
Soft Matter, 2023 We extend theories of active nematics to incorporate cell shape changes. Sufficiently active systems display regions of active, elongated cells coexisting with regions of passive, circular cells.
Hadjifrangiskou, I +2 more
openaire +4 more sources