Results 21 to 30 of about 2,116,709 (334)

Newtonian and Non-Newtonian Pulsatile Flows through an Artery with Stenosis

open access: yesThe Journal of Engineering Research, 2017
The current study presents three-dimensional modeling and analysis of blood flow through artery stenosis under several variants of pulsatile flow to mimic the atherosclerosis artery disease.
Abdus Samad   +3 more
doaj   +1 more source

Numerical Computation of Extrusion and Draw-extrusion Cable-coating Flows with Polymer Melts

open access: yesApplied Rheology, 2014
This paper is concerned with the numerical solution of polymer melt flows of both extrudate-swell and tube-tooling die-extrusion coatings, using a hybrid finite element/finite volume discretisation fe/fv.
Webster M. F.   +2 more
doaj   +1 more source

Computational Predictions for Boger Fluids and Circular Contraction Flow under Various Aspect Ratios

open access: yesFluids, 2020
This work puts forward a modeling study contrasted against experimental, with focus on abrupt circular contraction flow of two highly-elastic constant shear-viscosity Boger fluids, i.e., a polyacrylamide dissolved in corn-syrup PAA/CS (Fluid-1) and a ...
J. Esteban López-Aguilar   +1 more
doaj   +1 more source

Impact of pseudoplastic and dilatants behavior of Reiner-Philippoff nanofluid on peristaltic motion with heat and mass transfer analysis in a tapered channel

open access: yesAIMS Mathematics, 2023
The main goal of this article is to investigate the effects of pseudoplastic, and dilatants behavior of non-Newtonian based nanofluid on peristaltic motion in an asymmetric tapered channel.
Muhammad Tahir , Yasir Khan, Adeel Ahmad
doaj   +1 more source

Non-Newtonian Effects of Blood Flow on Hemodynamics in Pulmonary Stenosis: Numerical Simulation

open access: yesApplied Bionics and Biomechanics, 2023
This paper aims to explore the construction of an individualized pulmonary artery stenosis model based on computed tomography (CT) images. The stenosis model is simulated using a porous medium, and the numerical simulation is carried out by computational
Fan He, Xinyu Wang, Lu Hua, Tingting Guo
doaj   +1 more source

Numerical Analysis of Newtonian Heating Convective Flow by Way of Two Different Surfaces

open access: yesApplied Sciences, 2022
In this paper, we offer a numerical study on heated non-Newtonian fluid with a Newtonian heating effect towards thermally stable stretching surfaces. A comparative analysis for two stretched surfaces, namely, plate and cylinder, is offered.
Khalil Ur Rehman   +3 more
doaj   +1 more source

Particle Focusing in a Straight Microchannel with Non-Rectangular Cross-Section

open access: yesMicromachines, 2022
Recently, studies on particle behavior under Newtonian and non-Newtonian fluids in microchannel have attracted considerable attention because particles and cells of interest can be manipulated and separated from biological samples without any external ...
Uihwan Kim   +3 more
doaj   +1 more source

The Newtonian Limit for Perfect Fluids [PDF]

open access: yesCommunications in Mathematical Physics, 2007
We prove that there exists a class of non-stationary solutions to the Einstein-Euler equations which have a Newtonian limit. The proof of this result is based on a symmetric hyperbolic formulation of the Einstein-Euler equations which contains a singular parameter $\ep = v_T/c$ where $v_T$ is a characteristic velocity scale associated with the fluid ...
openaire   +4 more sources

Investigation of Non-Newtonian Characteristics of Water Flow in Micro-/Nanochannels and Tight Reservoirs

open access: yesGeofluids, 2022
The characteristic scale of pore flow in tight reservoirs is generally in the range of 0.1 μm to 1 μm, which shows the obvious micro- and nanoscale effect.
Heying Ding   +4 more
doaj   +1 more source

Drop Formation in Non-Newtonian Fluids [PDF]

open access: yesPhysical Review Letters, 2013
We study the pinch-off dynamics of droplets of yield stress and shear thinning fluids. To separate the two non-Newtonian effects, we use a yield stress material for which the yield stress can be tuned without changing the shear thinning behavior, and a shear thinning system (without a yield stress) for which the shear thinning can be controlled over a ...
Aytouna, Mounir   +7 more
openaire   +6 more sources

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