Results 31 to 40 of about 244,315 (370)
Jeffery orbits in shear-thinning fluids [PDF]
Physics of Fluids, 2019 We investigate the dynamics of a prolate spheroid in a shear flow of a shear-thinning Carreau fluid. The motion of a prolate particle is developed analytically for asymptotically weak shear thinning and then integrated numerically. We find that shear-thinning rheology does not lift the degeneracy of Jeffery orbits observed in Newtonian fluids, but the ...
S. Arman Abtahi, Gwynn J. Elfring
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Shear-Thinning Fluid Flow in Variable-Aperture Channels [PDF]
Water, 2020 Non-Newtonian fluid flow in a single fracture is a 3-D nonlinear phenomenon that is often averaged across the fracture aperture and described as 2-D. To capture the key interactions between fluid rheology and spatial heterogeneity, we adopt a simplified geometric model to describe the aperture variability, consisting of adjacent one-dimensional ...
Alessandro Lenci +2 more
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Physics of Rheologically-Enhanced Propulsion: Different Strokes in Generalized Stokes [PDF]
, 2013 Shear-thinning is an important rheological property of many biological fluids, such as mucus, whereby the apparent viscosity of the fluid decreases with shear.
Batchelor G. K. +6 more
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Helical propulsion in shear-thinning fluids [PDF]
Journal of Fluid Mechanics, 2016 Swimming micro-organisms often have to propel themselves in complex non-Newtonian fluids. We carry out experiments with self-propelling helical swimmers driven by an externally rotating magnetic field in shear-thinning inelastic fluids. Similarly to swimming in a Newtonian fluid, we obtain for each fluid a locomotion speed that scales linearly with the
Saúl Gómez +3 more
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Lubricants, 2023 The accurate prediction of friction in highly loaded concentrated contacts is one of the most challenging aspects of thermal elastohydrodynamic (TEHD) simulation.
Thomas Neupert, Dirk Bartel
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Thermal and concentration aspects in Carreau viscosity model via wedge
Case Studies in Thermal Engineering, 2018 The current pagination reports both the heat and mass transfer aspects subject to two dimensional steady flow over a moving wedge for the Carreau viscosity model with infinite shear rate viscosity. The results are reported for the both shear thinning and
Usman Ali +3 more
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Flow of Non-Newtonian Fluids in a Single-Cavity Microchannel
Micromachines, 2021 Having a basic understanding of non-Newtonian fluid flow through porous media, which usually consist of series of expansions and contractions, is of importance for enhanced oil recovery, groundwater remediation, microfluidic particle manipulation, etc ...
Mahmud Kamal Raihan +6 more
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Undulatory swimming in shear-thinning fluids: Experiments with C. elegans [PDF]
, 2014 The swimming behaviour of microorganisms can be strongly influenced by the rheology of their fluid environment. In this manuscript, we experimentally investigate the effects of shear-thinning viscosity on the swimming behaviour of an undulatory swimmer ...
Arratia, Paulo E. +2 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 +3 more
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Analysis of the Shear-Thinning Viscosity Behavior of the Johnson–Segalman Viscoelastic Fluids
Fluids, 2022 This paper presents a numerical comparison of viscoelastic shear-thinning fluid flow using a generalized Oldroyd-B model and Johnson–Segalman model under various settings. Results for the standard shear-thinning generalization of Oldroyd-B model are used
Tomáš Bodnár, Adélia Sequeira
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