Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Morris, Jeffrey F."'
The onset and growth of rigid clusters in a two-dimensional (2D) suspension in shear flow are studied by numerical simulation. The suspension exhibits the lubricated-to-frictional rheology transition but is studied at stresses above the levels that c
Externí odkaz:
http://arxiv.org/abs/2401.15165
Shear thickening of suspensions is studied by discrete-particle simulation, accounting for hydrodynamic, repulsive, and contact forces. The contact forces, including friction, are activated when the imposed shear stress $\sigma$ is able to overcome t
Externí odkaz:
http://arxiv.org/abs/2108.07261
This paper describes an experimental study of filtration of a colloidal suspension using microfluidic devices. A suspension of micrometer-scale colloids flows through parallel slit-shaped pores at fixed pressure drop. Clogs and cakes are systematical
Externí odkaz:
http://arxiv.org/abs/2006.13082
Publikováno v:
Phys. Rev. Fluids 6, 012301 (2021)
Quasi-2D experiments of a submerged sediment layer creeping downward were performed, varying the channel tilt and a porous flow under the respective thresholds for yielding. Logarithmic decay rates of the deformation are observed, with the rate incre
Externí odkaz:
http://arxiv.org/abs/1910.02652
Publikováno v:
Phys. Rev. Fluids 5, 034307 (2020)
Dense, stabilized, frictional particulate suspensions in a viscous liquid undergo increasingly strong continuous shear thickening (CST) as the solid packing fraction, $\phi$, increases above a critical volume fraction, and discontinuous shear thicken
Externí odkaz:
http://arxiv.org/abs/1903.08493
Publikováno v:
Granul. Matter, 21(3):82, 2019
The phenomenon of shear-induced jamming is a factor in the complex rheological behavior of dense suspensions. Such shear-jammed states are fragile, i.e., they are not stable against applied stresses that are incompatible with the stress imposed to cr
Externí odkaz:
http://arxiv.org/abs/1902.04361
Predicting rapid and slower soil evolution remains a scientific challenge. This process involves poorly understood aspects of disordered granular matter and dense suspension dynamics. This study presents a novel two-dimensional experiment on a small-
Externí odkaz:
http://arxiv.org/abs/1812.08753
Publikováno v:
Phys. Rev. Lett. 122, 098004 (2019)
Simulations are used to study the steady shear rheology of dense suspensions of frictional particles exhibiting discontinuous shear thickening and shear jamming, in which finite-range cohesive interactions result in a yield stress. We develop a const
Externí odkaz:
http://arxiv.org/abs/1809.06020
Autor:
Edens, Lance E., Pednekar, Sidhant, Morris, Jeffrey F., Schenter, Gregory K., Clark, Aurora E., Chun, Jaehun
Publikováno v:
Phys. Rev. E 99, 012607 (2019)
Highly concentrated or 'dense" particle suspensions can undergo a sharp increase in viscosity, or shear thickening, under applies stress. Understanding the fundamental features leading to such rheological changes in dense suspensions is crucial to op
Externí odkaz:
http://arxiv.org/abs/1809.04239
Autor:
Liot, Olivier, Singh, Akash, Bacchin, Patrice, Duru, Paul, Morris, Jeffrey F., Joseph, Pierre
Blockage of pores by particles is found in many processes, including filtration and oil extraction. We present filtration experiments through a linear array of ten channels with one dimension which is sub-micron, through which a dilute dispersion of
Externí odkaz:
http://arxiv.org/abs/1711.10881