Zobrazeno 1 - 10
of 309
pro vyhledávání: '"Dauchot, O."'
Publikováno v:
Physical Review FLUIDS 9, 063906 (2024)
For low enough flow rates, turbulent channel flow displays spatial modulations of large wavelengths. This phenomenon has recently been interpreted as a linear instability of the turbulent flow. We question here the ability of linear stability analysi
Externí odkaz:
http://arxiv.org/abs/2406.13446
Publikováno v:
Nature Physics 18, pp. 1234-1239 (2022)
Active solids consist of elastically coupled out-of-equilibrium units performing work. They are central to autonomous processes, such as locomotion, self-oscillations and rectification, in biological systems,designer materials and robotics. Yet, the
Externí odkaz:
http://arxiv.org/abs/2110.01516
Publikováno v:
Phys. Rev. Lett. 119, 028002 (2017)
We experimentally study the mechanical pressure exerted by a set of respectively passive isotropic and self-propelled polar disks onto two different flexible unidimensional membranes. In the case of the isotropic disks, the mechanical pressure, infer
Externí odkaz:
http://arxiv.org/abs/1703.04195
Autor:
Briand, G., Dauchot, O.
Publikováno v:
Phys. Rev. Lett. 117, 098004 (2016)
We experimentally study the crystallization of a monolayer of vibrated discs with a built-in polar asymmetry, a model system of active liquids, and contrast it with that of vibrated isotropic discs. Increasing the packing fraction $\phi$, the quasi-c
Externí odkaz:
http://arxiv.org/abs/1605.03080
Publikováno v:
Phys Rev Lett. 110(20):208001 (2013)
Vibrated polar disks have been used experimentally to investigate collective motion of driven particles, where fully-ordered asymptotic regimes could not be reached. Here we present a model reproducing quantitatively the single, binary and collective
Externí odkaz:
http://arxiv.org/abs/1304.4760
Publikováno v:
EPL 100 (2012) 44005
We experimentally study the vicinity of the Jamming transition by investigating the statics and the dynamics of the contact network of an horizontally shaken bi-disperse packing of photo-elastic discs. Compressing the packing very slowly, while maint
Externí odkaz:
http://arxiv.org/abs/1202.5687
Publikováno v:
Phys. Rev. Lett. 107, 108303 (2011)
We establish that the rheological curve of dry granular media is non-monotonic, both in the presence and absence of external mechanical agitations. In the presence of weak vibrations, the non-monotonic flow curves govern a hysteretic transition betwe
Externí odkaz:
http://arxiv.org/abs/1106.2849
Publikováno v:
Physics of Fluids, vol 17 , 095103 (2005)
This paper provides a prescription for the turbulent viscosity in rotating shear flows for use e.g. in geophysical and astrophysical contexts. This prescription is the result of the detailed analysis of the experimental data obtained in several studi
Externí odkaz:
http://arxiv.org/abs/1106.1276
Publikováno v:
Soft Matter, 2010, 6, 3059 - 3064
By analyzing the displacement statistics of an assembly of horizontally vibrated bidisperse frictional grains in the vicinity of the jamming transition experimentally studied before, we establish that their superdiffusive motion is a genuine Levy fli
Externí odkaz:
http://arxiv.org/abs/1001.1765
Publikováno v:
EPL 92 (2010) 24003
We investigate the relaxation dynamics of a dense monolayer of bidisperse beads by analyzing the experimental data previously obtained in a fluidized bed. We show that the dynamics is formed by elementary relaxation events called cage jumps. These ag
Externí odkaz:
http://arxiv.org/abs/0912.0472