Results 11 to 20 of about 8,156,149 (340)
Determination of the Effective Viscosity of Non-newtonian Fluids Flowing Through Porous Media
Frontiers in Physics, 2019 When non-Newtonian fluids flow through porous media, the topology of the pore space leads to a broad range of flow velocities and shear rates. Consequently, the local viscosity of the fluid also varies in space with a non-linear dependence on the Darcy ...
Ursin Eberhard +7 more
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Physical mechanisms for droplet size and effective viscosity asymmetries in turbulent emulsions [PDF]
Journal of Fluid Mechanics, 2022 By varying the oil volume fraction, the microscopic droplet size and the macroscopic rheology of emulsions are investigated in a Taylor–Couette turbulent shear flow.
Lei Yi +6 more
semanticscholar +1 more source
Bridging the connection between effective viscosity and electrical conductivity through water content in the upper mantle. [PDF]
Sci Rep, 2018 Upper mantle viscosity plays a key role in understanding plate tectonics and is usually extrapolated from laboratory-based creep measurements of upper mantle conditions or constrained by modeling geodetic and post-seismic observations.
Xu Y +6 more
europepmc +2 more sources
On the correction to Einstein’s formula for the effective viscosity [PDF]
Annales de l'Institut Henri Poincare. Analyse non linéar, 2020 This paper is a follow-up of article [6], on the derivation of accurate effective models for viscous dilute suspensions. The goal is to identify an effective Stokes equation providing a $o(\lambda^2)$ approximation of the exact fluid-particle system ...
David G'erard-Varet, A. Mecherbet
semanticscholar +1 more source
Geochemistry Geophysics Geosystems, 2021 Deformations of the colder regions of the lithosphere mainly occur in the frictional regime. In geodynamic models, frictional plastic deformations are often highly localized (shear bands) and are used as proxies for faults.
T. Duretz, R. Borst, P. Yamato
semanticscholar +1 more source
Convective turbulent viscosity acting on equilibrium tidal flows: new frequency scaling of the effective viscosity [PDF]
Monthly notices of the Royal Astronomical Society, 2020 Turbulent convection is thought to act as an effective viscosity (νE) in damping tidal flows in stars and giant planets. However, the efficiency of this mechanism has long been debated, particularly in the regime of fast tides, when the tidal frequency
C. Duguid, A. Barker, Chris A. Jones
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Mild assumptions for the derivation of Einstein’s effective viscosity formula [PDF]
, 2020 We provide a rigorous derivation of Einstein’s formula for the effective viscosity of dilute suspensions of n rigid balls, set in a volume of size 1. So far, most justifications were carried under a strong assumption on the minimal distance between the ...
D. Gérard-Varet, Richard M. Höfer
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Effective viscosity of random suspensions without uniform separation [PDF]
Annales de l'Institut Henri Poincare. Analyse non linéar, 2020 This work is devoted to the definition and the analysis of the effective viscosity associated with a random suspension of small rigid particles in a steady Stokes fluid. While previous works on the topic have been conveniently assuming that particles are
Mitia Duerinckx
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A Local Version of Einstein's Formula for the Effective Viscosity of Suspensions [PDF]
SIAM Journal on Mathematical Analysis, 2019 We prove a local variant of Einstein's formula for the effective viscosity of dilute suspensions, that is $\mu^\prime=\mu (1+\frac 5 2\phi+o(\phi))$, where $\phi$ is the volume fraction of the suspended particles.
B. Niethammer, R. Schubert
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Journal of Fluid Science and Technology, 2021 Einstein’s viscosity formula is sometimes strongly limited for viscosity estimation of suspensions; that is, it is only applicable for low-concentration suspensions in which hydrodynamic interactions are sufficiently negligible.
Naoki OKAMURA +3 more
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