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Relevant bibliographies by topics / Viscoelastic fluids

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Journal articles

Academic literature on the topic 'Viscoelastic fluids'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 June 2024

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Journal articles on the topic "Viscoelastic fluids"

1

Guillopé, Colette, and Jean-Claude Saut. "Existence and stability of steady flows of weakly viscoelastic fluids." Proceedings of the Royal Society of Edinburgh: Section A Mathematics 119, no. 1-2 (1991): 137–58. http://dx.doi.org/10.1017/s0308210500028377.

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SynopsisWe consider steady flows of viscoelastic fluids for which the extrastress tensor is given by a differential constitutive equation and is such that the retardation time is large (weakly viscoelastic fluids).We show the existence of a unique viscoelastic steady flow close to a given Newtonian flow and investigate its linear stability.As an example, we consider the Bénard problem for viscoelastic fluids and we prove that there exists a nontrivial linearly stable flow of a weakly viscoelastic fluid in a container heated from below.

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2

Song, Jinhyeuk, Jaekyeong Jang, Taehoon Kim, and Younghak Cho. "Particle Separation in a Microchannel with a T-Shaped Cross-Section Using Co-Flow of Newtonian and Viscoelastic Fluids." Micromachines 14, no. 10 (2023): 1863. http://dx.doi.org/10.3390/mi14101863.

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In this study, we investigated the particle separation phenomenon in a microchannel with a T-shaped cross-section, a unique design detailed in our previous study. Utilizing a co-flow system within this T-shaped microchannel, we examined two types of flow configuration: one where a Newtonian fluid served as the inner fluid and a viscoelastic fluid as the outer fluid (Newtonian/viscoelastic), and another where both the inner and outer fluids were Newtonian fluids (Newtonian/Newtonian). We introduced a mixture of three differently sized particles into the microchannel through the outer fluid and

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3

Li, Chuanbin, Boyang Qin, Arvind Gopinath, Paulo E. Arratia, Becca Thomases, and Robert D. Guy. "Flagellar swimming in viscoelastic fluids: role of fluid elastic stress revealed by simulations based on experimental data." Journal of The Royal Society Interface 14, no. 135 (2017): 20170289. http://dx.doi.org/10.1098/rsif.2017.0289.

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Many important biological functions depend on microorganisms' ability to move in viscoelastic fluids such as mucus and wet soil. The effects of fluid elasticity on motility remain poorly understood, partly because the swimmer strokes depend on the properties of the fluid medium, which obfuscates the mechanisms responsible for observed behavioural changes. In this study, we use experimental data on the gaits of Chlamydomonas reinhardtii swimming in Newtonian and viscoelastic fluids as inputs to numerical simulations that decouple the swimmer gait and fluid type in order to isolate the effect of

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4

Peiffer, D. G. "Polymerizable viscoelastic fluids." Journal of Polymer Science Part A: Polymer Chemistry 28, no. 3 (1990): 619–27. http://dx.doi.org/10.1002/pola.1990.080280313.

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5

Niedziela, D., A. Latz, and O. Iliev. "Simulations of Viscoelastic Polymer Solution Flows." NAFEMS International Journal of CFD Case Studies 6 (March 2007): 15–25. http://dx.doi.org/10.59972/d8hd7bkp.

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Many natural and synthetic fluids are viscoelastic materials i.e. the stress at a certain fluid particle depends upon the history of the deformation experienced by that particle. Polymer melts and most polymer solutions are examples of such liquids. Simulation of the flow of these fluids is therefore of great interest for the plastic industry. Viscoelastic fluids are examples of non - Newtonian fluids. While the Newtonian fluids are characterised by a constant viscosity (i.e., constant ratio between shear stress and the rate of strain), the non-Newtonian fluids require more complicated constit

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6

Bizhani, M., and E. Kuru. "Particle Removal From Sandbed Deposits in Horizontal Annuli Using Viscoelastic Fluids." SPE Journal 23, no. 02 (2017): 256–73. http://dx.doi.org/10.2118/189443-pa.

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Summary This paper presents results of an experimental study on how fluid viscoelastic properties would influence the particle removal from the sandbed deposited in horizontal annuli. Water and two different viscoelastic fluids were used for bed-erosion experiments. The particle-image-velocimetry (PIV) technique was used to measure the local fluid velocity at the fluid/sandbed interface, allowing for accurate estimation of the fluid-drag forces and the turbulence stresses. It was found that polymer fluids needed to exert higher level drag forces (than those of water) on the sandbed to start mo

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7

Makarynska, Dina, Boris Gurevich, Jyoti Behura, and Mike Batzle. "Fluid substitution in rocks saturated with viscoelastic fluids." GEOPHYSICS 75, no. 2 (2010): E115—E122. http://dx.doi.org/10.1190/1.3360313.

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Heavy oils have high densities and extremely high viscosities, and they exhibit viscoelastic behavior. Traditional rock physics based on Gassmann theory does not apply to materials saturated with viscoelastic fluids. We use an effective-medium approach known as coherent potential approximation (CPA) as an alternative fluid-substitution scheme for rocks saturated with viscoelastic fluids. Such rocks are modeled as solids with elliptical fluid inclusions when fluid concentration is small and as suspensions of solid particles in the fluid when the solid concentration is small. This approach is co

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8

Xu, Zhengming, Xianzhi Song, and Zhaopeng Zhu. "Development of Elastic Drag Coefficient Model and Explicit Terminal Settling Velocity Equation for Particles in Viscoelastic Fluids." SPE Journal 25, no. 06 (2020): 2962–83. http://dx.doi.org/10.2118/201194-pa.

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Summary Viscoelastic fluids are frequently used as drilling or fracturing fluids to enhance cuttings or proppant transport efficiency. The solid transport performance of these fluids largely depends on the settling behaviors of suspended particles. Different from viscoinelastic fluids, the elastic and viscous characteristics of viscoelastic fluids both affect particle settling behaviors. In this study, to separately quantify the contribution degrees of the shear viscosity and fluid elasticity on the terminal settling velocity, we decompose the total drag force into a viscous drag force and an

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9

Yasappan, Justine, Ángela Jiménez-Casas, and Mario Castro. "Asymptotic Behavior of a Viscoelastic Fluid in a Closed Loop Thermosyphon: Physical Derivation, Asymptotic Analysis, and Numerical Experiments." Abstract and Applied Analysis 2013 (2013): 1–20. http://dx.doi.org/10.1155/2013/748683.

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Fluids subject to thermal gradients produce complex behaviors that arise from the competition with gravitational effects. Although such sort of systems have been widely studied in the literature for simple (Newtonian) fluids, the behavior of viscoelastic fluids has not been explored thus far. We present a theoretical study of the dynamics of a Maxwell viscoelastic fluid in a closed-loop thermosyphon. This sort of fluid presents elastic-like behavior and memory effects. We study the asymptotic properties of the fluid inside the thermosyphon and the exact equations of motion in the inertial mani

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10

Cho, Mira, Sun Ok Hong, Seung Hak Lee, Kyu Hyun, and Ju Min Kim. "Effects of Ionic Strength on Lateral Particle Migration in Shear-Thinning Xanthan Gum Solutions." Micromachines 10, no. 8 (2019): 535. http://dx.doi.org/10.3390/mi10080535.

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Viscoelastic fluids, including particulate systems, are found in various biological and industrial systems including blood flow, food, cosmetics, and electronic materials. Particles suspended in viscoelastic fluids such as polymer solutions migrate laterally, forming spatially segregated streams in pressure-driven flow. Viscoelastic particle migration was recently applied to microfluidic technologies including particle counting and sorting and the micromechanical measurement of living cells. Understanding the effects on equilibrium particle positions of rheological properties of suspending vis

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