Results 21 to 30 of about 35,623 (166)
Viscoelastic Capillary Flow Cytometry
Advanced NanoBiomed Research, 2023 A compact microfluidic flow cytometer is demonstrated, comprising viscoelastic flow focusing in fused silica capillaries and a fiber optical interface.
Murat Serhatlioglu +10 more
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Viscoelastic Flow by the Presence of Radiation
ZAMM, 1998 Summary: We present an analysis of steady flow of a viscoelastic fluid past an infinite porous plate in the presence of radiation. Analytical solutions for the temperature field are derived, and the effect of radiation parameter on the temperature field is discussed.
Raptis, A., Perdikis, C.
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Viscoelastic instabilities in micro-scale flows [PDF]
Experimental Thermal and Fluid Science, 2014 Many artificial and natural fluids contain macromolecules, particles or droplets that impart complex flow behavior to the fluid. This complex behavior results in a non-linear relationship between stress and deformation standing in between Newton’s law of viscosity for an ideal viscous liquid and Hooke’s law for an ideal elastic material.
Galindo-Rosales, Francisco J. +6 more
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Response of Viscoelastic Turbulent Pipeflow Past Square Bar Roughness: The Effect on Mean Flow
Computation, 2021 The influence of viscoelastic polymer additives on response and recovery of turbulent pipeflow over square bar roughness elements was examined using Direct Numerical Simulations at a Reynolds number of 5×103.
Shubham Goswami, Arman Hemmati
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Infrastructures, 2023 The generalized Maxwell (GM) constitutive model has been widely applied to characterize the viscoelastic properties of asphalt mixtures. The parameters (Prony series) of the GM are usually obtained via interconversion between a dynamic modulus and ...
Jinxi Zhang +3 more
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Disorder Suppresses Chaos in Viscoelastic Flows
Physical Review Letters, 2020 Viscoelastic flows transition from steady to time-dependent, chaotic dynamics under critical flow conditions, but the implications of geometric disorder for flow stability in these systems are unknown. Utilizing microfluidics, we flow a viscoelastic fluid through arrays of cylindrical pillars, which are perturbed from a hexagonal lattice with various ...
Derek M. Walkama +2 more
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Virtual and Physical Prototyping, 2022 This paper presents a novel Computational Fluid Dynamics (CFD) model that simulates the non-isothermal flow of a viscoelastic fluid through the hot-end in filament-based Material Extrusion Additive Manufacturing (MEX). The hot-end is an essential part of
Marcin P. Serdeczny +4 more
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On numerical Simulations of Polymer Extrusion Instabilities
Applied Rheology, 2002 The objective of this study is mainly to review recent work concerning the numerical modeling of the stick-slip and gross melt fracture polymer extrusion instabilities. Three different mechanisms of instability are discussed: (a) combination of nonlinear
Achilleos Evdokia +2 more
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An Elongational and Shear Evaluation of Polymer Viscoelasticity during Flow in Porous Media
Applied Sciences, 2020 This paper uses a combination of approaches to evaluate the viscoelastic phenomenon in high-molecular-weight polymers (24–28 M Daltons) used for enhanced oil recovery (EOR) applications.
Muhammad Tahir +2 more
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Viscoelasticity-Induced Instability in Plane Couette Flow at Very Low Reynolds Number
Fluids, 2022 Elasto-inertial turbulence (EIT), a new turbulent state found in polymer solutions with viscoelastic properties, is associated with drag-reduced turbulence.
Tomohiro Nimura, Takahiro Tsukahara
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