Results 11 to 20 of about 13,892 (266)

Active turbulence in shear-thinning fluid

Physical Review Research
The study of active matter system has critical importance in revealing the physical essence of biological collective behavior. Dense bacterial suspension—a typical biological active matter, exhibits a wide range of phenomenona, among which bacterial ...
Hongyi Bian, Chunhe Li, Zixiang Lin, Jin Zhu, Weijie Chen, Gaojin Li, Yongxiang Huang, Zijie Qu   +7 more
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Shear thinning of a critical viscoelastic fluid [PDF]

Physical Review E, 2005
The frequency and shear dependent critical viscosity at a correlation length $ξ=κ^{-1}$, has the form $η=η_{0}κ^{-x_η}G(z_{1},z_{2})$, where $z_{1}$ and $z_{2}$ are the independent dimensionless numbers in the problem defined as $z_{1}=\frac{-iω}{2Γ_{0}κ^{3}}$ and $z_{2}=\frac{-iω}{2Γ_{0}κ_{c}^{3}}$.
Das, Palash, Bhattacharjee, Jayanta K.
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Swimming efficiency in a shear-thinning fluid [PDF]

Physical Review E, 2017
Micro-organisms expend energy moving through complex media. While propulsion speed is an important property of locomotion, efficiency is another factor that may determine the swimming gait adopted by a micro-organism in order to locomote in an energetically favorable manner.
Nganguia, Herve, Pietrzyk, Kyle, Pak, On Shun   +2 more
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Sedimentation of Fractal Aggregates in Shear-Thinning Fluids [PDF]

Applied Sciences, 2020
Solid–liquid separation is a key unit operation in the wastewater treatment, generally consisting of coagulation and flocculation steps to promote aggregation and increase the particle size, followed by sedimentation, where the particles settle due to the effect of gravity.
Trofa M., D'Avino G.
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Mixing in shear thinning fluids [PDF]

Brazilian Journal of Chemical Engineering, 2012
In the present study, a CFD characterization of the flow generated by curved-blade impellers in a cylindrical unbaffled vessel was carried out. The tank diameter was 300 mm, with a flat bottom. The liquid height was equal to the vessel diameter. The fluids simulated have a shear thinning behavior.
Ameur, H., Bouzit, M.
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Rheology of a Dilute Suspension of Aggregates in Shear-Thinning Fluids [PDF]

Micromachines, 2020
The prediction of the viscosity of suspensions is of fundamental importance in several fields. Most of the available studies have been focused on particles with simple shapes, for example, spheres or spheroids. In this work, we study the viscosity of a dilute suspension of fractal-shape aggregates suspended in a shear-thinning fluid by direct numerical
Trofa M., D'Avino G.
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Propulsion of an elastic filament in a shear-thinning fluid

Soft Matter, 2021
Via a simple elastic swimmer actuated magnetically, we present a first study to examine how shear-thinning rheology impacts the fluid-structure interaction and hence the elastohydrodynamic propulsion performance at low Reynolds numbers.
Ke Qin, Zhiwei Peng, Ye Chen, Herve Nganguia, Lailai Zhu, On Shun Pak   +5 more
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Degassing cascades in a shear-thinning viscoelastic fluid [PDF]

Physical Review E, 2011
We report the experimental study of the degassing dynamics through a thin layer of shear-thinning viscoelastic fluid (CTAB/NaSal solution), when a constant air flow is imposed at its bottom. Over a large range of parameters, the air is periodically released through series of successive bubbles, hereafter named {\it cascades}.
Vidal, Valérie, Soubiran, François, Divoux, Thibaut, Géminard, Jean-Christophe   +3 more
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Taylor-vortex flow in shear-thinning fluids [PDF]

Physical Review E, 2019
This paper deals with the Taylor-Couette flow of shear-thinning fluids. It focuses on the first principles understanding of the influence of the viscosity stratification and the nonlinear variation of the effective viscosity μ with the shear rate γ[over ̇] on the flow structure in the Taylor-vortex flow regime.
Topayev, S, Nouar, C., Bernardin, D, Neveu, A., Bahrani, S   +4 more
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Elasto-Inertial Focusing Mechanisms of Particles in Shear-Thinning Viscoelastic Fluid in Rectangular Microchannels

Micromachines, 2022
Growth of the microfluidics field has triggered numerous advances in focusing and separating microparticles, with such systems rapidly finding applications in biomedical, chemical, and environmental fields.
Mohammad Moein Naderi, Ludovica Barilla, Jian Zhou, Ian Papautsky, Zhangli Peng   +4 more
doaj   +1 more source