Results 111 to 120 of about 24,918 (158)

Shear Thinning of Noncolloidal Suspensions

Physical Review Letters, 2016
Shear thinning-a reduction in suspension viscosity with increasing shear rates-is understood to arise in colloidal systems from a decrease in the relative contribution of entropic forces. The shear-thinning phenomenon has also been often reported in experiments with noncolloidal systems at high volume fractions.
Marco Ellero, Adolfo Vázquez-Quesada, Roger Tanner   +2 more
exaly   +5 more sources

Shear thinning of nanoparticle suspensions

Physical Review E, 2009
Results of large scale nonequilibrium molecular dynamics simulations are presented for nanoparticles in an explicit solvent. The nanoparticles are modeled as a uniform distribution of Lennard-Jones particles, while the solvent is represented by standard Lennard-Jones particles.
Pieter J, In 't Veld, Matt K, Petersen, Gary S, Grest   +2 more
openaire   +2 more sources

Shear thickening-shear thinning and shear thinning-shear thickening transitions in polymeric systems

Caderno Pedagógico
This review explores the complex rheological behaviors of hydrogels, specifically focusing on shear thinning-shear thickening (PD) and the less common shear thickening-shear thinning (DP) transitions. While shear thinning (viscosity decrease with increasing shear rate) is widely utilized in applications like 3D printing and injectables, and shear ...
José Edilson Neves, Taynah Pereira Galdino, Antonio Gilson Barbosa de Lima, Marcus Vinicius Lia Fook, Rômulo Feitosa Navarro   +4 more
openaire   +1 more source

Shear Forces in Molecularly Thin Films

Science, 1989
Monte Carlo and molecular dynamics methods have been used to study the shearing behavior of an atomic fluid between two plane-parallel solid surfaces having the face-centered cubic (100) structure. A distorted, face-centered cubic solid can form epitaxially between surfaces that are separated by distances of one to five atomic diameters.
M, Schoen, C L, Rhykerd, D J, Diestler, J H, Cushman   +3 more
openaire   +2 more sources

Structuring Sedimentation in a Shear-Thinning Fluid

Physical Review Letters, 2005
We study the sedimentation of suspensions of monodisperse non-Brownian particles in a shear-thinning polymeric fluid. We observe the formation of particle-rich structures and show that they are associated with a well-defined flow pattern. The results suggest that the observed structuring is a consequence of particle aggregation that amplifies ...
Mora, S., Talini, L., Allain, C.
openaire   +2 more sources

On Thin Shear Layers Numerical Simulation

Journal of Computational Physics, 2001
The paper describes a numerical solution of nonstationary Navier-Stokes equations with two space variables and periodic boundary conditions using vorticity-stream function formulation and finite difference methods. There are examples indicating that sometimes coarse grids yield rather unsatisfactory flow models, especially at large Reynolds number Re ...
Tolstykh, A. I., Chigirev, E. N.
openaire   +2 more sources

Discontinuous shear thinning in ordered suspensions

Physical Review Letters, 1990
The flow properties of concentrated suspensions having crystalline order at rest are reported. The suspensions contain charge stabilized particles and the softness of particle interaction is altered by varying the suspending phase ionic strength. The suspensions display a yield stress ${\mathrm{\ensuremath{\tau}}}_{\mathit{y}}$, and for stresses larger
, Chen, , Zukoski
openaire   +2 more sources

Viscoelasticity and shear thinning of nanoconfined water

Physical Review E, 2014
Understanding flow properties and phase behavior of water confined to nanometer-sized pores and slits is central to a wide range of problems in science, such as percolation in geology, lubrication of future nano-machines, self-assembly and interactions of biomolecules, and transport through porous media in filtration processes.
Karan, Kapoor, , Amandeep, Shivprasad, Patil   +2 more
openaire   +2 more sources

Shear thinning in non-Brownian suspensions

Soft Matter, 2018
We study the flow of suspensions of non-Brownian particles dispersed in a Newtonian solvent.
Chatté, Guillaume, Comtet, Jean, Niguès, Antoine, Bocquet, Lydéric, Siria, Alessandro, Ducouret, Guylaine, Lequeux, François, Lenoir, Nicolas, Ovarlez, Guillaume, Colin, Annie   +9 more
openaire   +4 more sources

Thin layers and shear-wave splitting

Geophysics, 1991
Abstract The near-surface weathering layer is considered by many to be strongly anisotropic. Any shear-wave signal passing through this low-velocity layer will inherit, to some degree, the anisotropic response of this layer. For thin weathering layers, information about previous anisotropic events may be distorted; when the thickness ...
R. D. Slack, D. A. Ebrom, J. A. McDonald, R. H. Tatham   +3 more
openaire   +1 more source