Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Shen, Zaiyi"'
Autor:
Carrasco, Celso, Martinet, Quentin, Shen, Zaiyi, Lintuvuori, Juho S., Palacci, Jérémie, Aubret, Antoine
Catalytic microswimmers convert the chemical energy of a fuel into motion, sustaining spatial chemical gradients and fluid flows that drive their propulsion. This leads to unconventional individual behavior and the emergence of collective dynamics, a
Externí odkaz:
http://arxiv.org/abs/2409.01024
Autor:
Shen, Zaiyi, Lintuvuori, Juho S.
Publikováno v:
Physical Review Letters 130 (18), 188202 (2023)
Hydrodynamic interactions can give rise to a collective motion of rotating particles. This, in turn, can lead to coherent fluid flows. Using large scale hydrodynamic simulations, we study the coupling between these two in spinner monolayers at weakly
Externí odkaz:
http://arxiv.org/abs/2308.11280
Autor:
Zhang, Zaicheng, Bertin, Vincent, Essink, Martin, Zhang, Hao, Fares, Nicolas, Shen, Zaiyi, Bickel, Thomas, Salez, Thomas, Maali, Abdelhamid
The unsteady hydrodynamic drag exerted on an oscillating sphere near a planar wall is addressed experimentally, theoretically, and numerically. The experiments are performed by using colloidal-probe Atomic Force Microscopy (AFM) in thermal noise mode
Externí odkaz:
http://arxiv.org/abs/2307.05991
Publikováno v:
Phys. Rev. Fluids (2022), 7, L042001
We study the orientational and translational dynamics of spherical microswimmers trapped at fluid interfaces, in terms of the force dipole and source dipole components of their flow field. Using numerical simulations and analytical calculations, we s
Externí odkaz:
http://arxiv.org/abs/2202.10421
Autor:
Shen, Zaiyi, Lintuvuori, Juho S.
We study the dynamics of torque driven spherical spinners settled on a surface, and demonstrate that hydrodynamic interactions at finite Reynolds numbers can lead to a concentration dependent and non-uniform crystallisation. At semi-dilute concentrat
Externí odkaz:
http://arxiv.org/abs/2007.16142
Autor:
Shen, Zaiyi, Lintuvuori, Juho S.
Publikováno v:
Phys. Rev. Research 2, 013358 (2020)
We study the hydrodynamics of spherical spinners suspended in a Newtonian fluid at inertial regime. We observe a spontaneous condensation of the spinners into particle rich regions, at low but finite particle Reynolds numbers and volume fractions. Th
Externí odkaz:
http://arxiv.org/abs/2002.08195
Autor:
Shen, Zaiyi, Lintuvuori, Juho S.
Publikováno v:
Phys. Rev. Fluids 4, 123101 (2019)
We study numerically the hydrodynamics of a self-propelled particle system, consisting of spherical squirmers sedimented on a flat surface. We observe the emergence of dynamic structures, due to the interplay of particle-particle and particle-wall hy
Externí odkaz:
http://arxiv.org/abs/1905.11332
Autor:
Shen, Zaiyi
La dynamique et la rhéologie d'une suspension 2D confinée de vésicules (un modèle de RBCs (globules rouges) ) sont étudiées numériquement en utilisant une méthode de Boltzmann sur réseau frontière immergée. Nous analysons d'abord les situa
Externí odkaz:
http://www.theses.fr/2016GREAY037/document
Autor:
Farutin, Alexander, Shen, Zaiyi, Prado, Gael, Audemar, Vassanti, Ez-Zahraouy, Hamid, Benyoussef, Abdelilah, Polack, Benoit, Harting, Jens, Vlahovska, Petia M., Podgorski, Thomas, Coupier, Gwennou, Misbah, Chaouqi
Publikováno v:
Phys. Rev. Fluids 3, 103603 (2018)
Flux of rigid or soft particles (such as drops, vesicles, red blood cells, etc.) in a channel is a complex function of particle concentration, which depends on the details of induced dissipation and suspension structure due to hydrodynamic interactio
Externí odkaz:
http://arxiv.org/abs/1810.08549
Publikováno v:
Soft matter 15 (7), 1508-1521 (2019)
Active colloids self-organise to a variety of collective states, ranging from highly motile 'molecules' to complex 3D structures. Using large-scale simulations, we show that hydrodynamic interactions, together with a gravity-like aligning field, lead
Externí odkaz:
http://arxiv.org/abs/1802.07835