Zobrazeno 1 - 10
of 180
pro vyhledávání: '"GAMA, MARGARIDA"'
We investigate the dispersion of solutes in active nematic fluids confined in narrow channels based on simulations of nematohydrodynamics. The study focuses on two pre-turbulent regimes: oscillatory flow, with net mass flux, and dancing flow, without
Externí odkaz:
http://arxiv.org/abs/2410.04629
Autor:
Amaral, Guilherme N. C., Zhao, Hanqing, Sedahmed, Mahmoud, Campante, Tomás, Smalyukh, Ivan I., Tasinkevych, Mykola, da Gama, Margarida M. Telo, Coelho, Rodrigo C. V.
Three-dimensional (3D) simulations of the structure of liquid crystal (LC) torons, topologically protected distortions of the LC director field, under material flows are rare but essential in microfluidic applications. Here, we show that torons adopt
Externí odkaz:
http://arxiv.org/abs/2409.09486
Autor:
Vélez-Ceron, Ignasi, Coelho, Rodrigo C. V., Guillamat, Pau, da Gama, Margarida Telo, Sagués, Francesc, Ignés-Mullol, Jordi
Microfluidics involves the manipulation of flows at the microscale, typically requiring external power sources to generate pressure gradients. Alternatively, harnessing flows from active fluids, which are usually chaotic, has been proposed as a parad
Externí odkaz:
http://arxiv.org/abs/2407.09960
Autor:
Coelho, Rodrigo C. V., Zhao, Hanqing, Amaral, Guilherme N. C., Smalyukh, Ivan I., da Gama, Margarida M. Telo, Tasinkevych, Mykola
Topology establishes a unifying framework for a diverse range of scientific areas including particle physics, cosmology, and condensed matter physics. One of the most fascinating manifestations of topology in the context of condensed matter is the to
Externí odkaz:
http://arxiv.org/abs/2405.10850
Sand is a highly dissipative system, where the local spatial arrangements and densities depend strongly on the applied forces, resulting in fluid-like or solid-like behaviour. This makes sand swimming challenging and intriguing, raising questions abo
Externí odkaz:
http://arxiv.org/abs/2404.14168
A surface in contact with the isotropic phase of a passive liquid crystal can induce nematic order over distances that range from microscopic to macroscopic when the nematic-isotropic interface undergoes an orientational-wetting transition. If the ne
Externí odkaz:
http://arxiv.org/abs/2403.10178
Persistent motion of microswimmers near boundaries is known to result in surface accumulation. Recently it was shown experimentally that surface accumulation of microswimmers is impacted primarily by steric forces and short-ranged hydrodynamics. A wa
Externí odkaz:
http://arxiv.org/abs/2401.05237
Autor:
Silva, Danilo P. F., Coelho, Rodrigo C. V., Pagonabarraga, Ignacio, Succi, Sauro, da Gama, Margarida M. Telo, Araújo, Nuno A. M.
Publikováno v:
Soft Matter,20, 2419-2441(2024)
With the rapid development of studies involving droplet microfluidics, drug delivery, cell detection, and microparticle synthesis, among others, many scientists have invested significant efforts to model the flow of these fluid-filled bodies. Motivat
Externí odkaz:
http://arxiv.org/abs/2312.07369
Liquid crystal skyrmions are topologically protected spatially localized distortions of the director field which are fascinating from both fundamental mathematics and applied physics points of view. Skyrmions are realized in experimental setups which
Externí odkaz:
http://arxiv.org/abs/2304.12884