Results 41 to 50 of about 54,409 (176)

Shear thinning in dilute polymer solutions

open access: yesThe Journal of Chemical Physics, 2006
We use bead-spring models for a polymer coupled to a solvent described by multiparticle collision dynamics to investigate shear thinning effects in dilute polymer solutions. First, we consider the polymer motion and configuration in a shear flow. For flexible polymer models we find a sharp increase in the polymer radius of gyration and the fluctuations
Ryder, J, Yeomans, J
openaire   +2 more sources

Phase-field simulations of viscous fingering in shear-thinning fluids

open access: yes, 2009
A phase-field model for the Hele-Shaw flow of non-Newtonian fluids is developed. It extends a previous model for Newtonian fluids to a wide range of shear-dependent fluids.
Barnes H. A.   +6 more
core   +1 more source

Shear flow effects on phase separation of entangled polymer blends [PDF]

open access: yes, 1998
We introduce an entanglement model mixing rule for stress relaxation in a polymer blend to a modified Cahn-Hilliard equation of motion for concentration fluctuations in the presence of shear flow.
A. Onuki   +18 more
core   +1 more source

Rheology of Emulsions Thickened by Starch Nanoparticles

open access: yesNanomaterials, 2022
The rheology of oil-in-water (O/W) emulsions thickened by starch nanoparticles is investigated here. The starch nanoparticle concentration is varied from 0 to 25 wt% based on the matrix aqueous phase. The oil concentration is varied from 0 to 65 wt%.
Anuva Pal, Rajinder Pal
doaj   +1 more source

Universal mechanism of shear thinning in supercooled liquids

open access: yesCommunications Physics
Soft glassy materials experience a significant reduction in viscosity η when subjected to shear flow, known as shear thinning. This phenomenon is characterized by a power-law scaling of η with the shear rate $$\dot{\gamma }$$ γ ° , $$\eta \propto {\dot ...
Hideyuki Mizuno   +3 more
doaj   +1 more source

Characteristics of stratified flows of Newtonian/non-Newtonian shear-thinning fluids

open access: yes, 2017
Exact solutions for laminar stratified flows of Newtonian/non-Newtonian shear-thinning fluids in horizontal and inclined channels are presented. An iterative algorithm is proposed to compute the laminar solution for the general case of a Carreau non ...
Brauner, Neima   +3 more
core   +1 more source

Yield dimensionless magnetic effect and shear thinning for magnetorheological grease

open access: yesResults in Physics, 2020
The effects of silicone oil viscosity (SOV), carbonyl iron particles (CIPs) weight fraction and size on the yield dimensionless magnetic effect (DME) and shear-thinning behavior for magnetorheological (MR) grease were experimentally investigated in this ...
Kejie Wang   +3 more
doaj   +1 more source

Laminar flow in three-dimensional square-square expansions [PDF]

open access: yes, 2011
In this work we investigate the three-dimensional laminar flow of Newtonian and viscoelastic fluids through square–square expansions. The experimental results obtained in this simple geometry provide useful data for benchmarking purposes in complex three-
Alves, M.A.   +3 more
core   +1 more source

shear thinning

open access: yes, 2014
Citation: 'shear thinning' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.S05640 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

An improved equivalent viscosity model for the bubbly oil under high shear rate

open access: yesFriction
Shear-thinning effect of pure oil and distribution of bubble size are essential factors affecting the viscosity of bubbly oil. This study aims to establish an improved equivalent viscosity model for bubbly oil by considering the shear-thinning effect and
Shaohua Li   +3 more
doaj   +1 more source

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