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Journal articles on the topic 'Newtonian and Non-Newtonian fluids'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2023

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1

Martínez, Javier Andrés, Freddy Humberto Escobar, and José Humberto Cantillo. "Applying Tiab's direct synthesis technique to dilatant non-Newtonian/Newtonian fluids." Ingeniería e Investigación 31, no. 3 (September 1, 2011): 130–34. http://dx.doi.org/10.15446/ing.investig.v31n3.26404.

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Non-Newtonian fluids, such as polymer solutions, have been used by the oil industry for many years as fracturing agents and drilling mud. These solutions, which normally include thickened water and jelled fluids, are injected into the formation to enhanced oil recovery by improving sweep efficiency. It is worth noting that some heavy oils behave non-Newtonianly. Non-Newtonian fluids do not have direct proportionality between applied shear stress and shear rate and viscosity varies with shear rate depending on whether the fluid is either pseudoplastic or dilatant. Viscosity decreases as shear rate increases for the former whilst the reverse takes place for dilatants. Mathematical models of conventional fluids thus fail when applied to non-Newtonian fluids. The pressure derivative curve is introduced in this descriptive work for a dilatant fluid and its pattern was observed. Tiab's direct synthesis (TDS) methodology was used as a tool for interpreting pressure transient data to estimate effective permeability, skin factors and non-Newtonian bank radius. The methodology was successfully verified by its application to synthetic examples. Also, comparing it to pseudoplastic behavior, it was found that the radial flow regime in the Newtonian zone of dilatant fluids took longer to form regarding both the flow behavior index and consistency factor.

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2

McNeil, D. A., A. J. Addlesee, and A. Stuart. "Newtonian and non-Newtonian viscous flows in nozzles." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 214, no. 11 (November 1, 2000): 1425–36. http://dx.doi.org/10.1243/0954406001523399.

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A study of laminar, Newtonian and non-Newtonian fluids in nozzles has been undertaken. A theoretical model, previously deduced for Newtonian flows in expansions, was developed for Newtonian and non-Newtonian flows in nozzles. The model is based on a two-stream approach where the momentum and kinetic energy stored in the velocity profile of the fluid is altered by an area change of one stream relative to the other. The non-Newtonian liquids investigated were shear thinning. The model was used to investigate these non-Newtonian fluids and to justify the use of simpler, more approximate equations developed for the loss and flow coefficients. The model is compared favourably with data available in the open literature.

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3

Nabwey, Hossam A., Farhad Rahbar, Taher Armaghani, Ahmed M. Rashad, and Ali J. Chamkha. "A Comprehensive Review of Non-Newtonian Nanofluid Heat Transfer." Symmetry 15, no. 2 (January 29, 2023): 362. http://dx.doi.org/10.3390/sym15020362.

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Nanofluids behave like non-Newtonian fluids in many cases and, therefore, studying their symmetrical behavior is of paramount importance in nanofluid heat transfer modeling. This article attempts to provide are flection on symmetry via thorough description of a variety of non-Newtonian models and further provides a comprehensive review of articles on non-Newtonian models that have applied symmetrical flow modeling and nanofluid heat transfer. This study reviews articles from recent years and provides a comprehensive analysis of them. Furthermore, a thorough statistical symmetrical analysis regarding the commonality of nanoparticles, base fluids and numerical solutions to equations is provided. This article also investigates the history of nanofluid use as a non-Newtonian fluid; that is, the base fluid is considered to be non-Newtonian fluid or the base fluid is Newtonian, such as water. However, the nanofluid in question is regarded as non-Newtonian in modeling. Results show that 25% of articles considered nanofluids with Newtonian base fluid as a non-Newtonian model. In this article, the following questions are answered for the first time: Which non-Newtonian model has been used to model nanofluids? What are the most common non-Newtonian base fluids? Which numerical method is most used to solve non-Newtonian equations?

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4

Maritz, Riëtte, and Emile Franc Doungmo Goufo. "Newtonian and Non-Newtonian Fluids through Permeable Boundaries." Mathematical Problems in Engineering 2014 (2014): 1–14. http://dx.doi.org/10.1155/2014/146521.

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We considered the situation where a container with a permeable boundary is immersed in a larger body of fluid of the same kind. In this paper, we found mathematical expressions at the permeable interfaceΓof a domainΩ, whereΩ⊂R3.Γis defined as a smooth two-dimensional (at least classC2) manifold inΩ. The Sennet-Frenet formulas for curves without torsion were employed to find the expressions on the interfaceΓ. We modelled the flow of Newtonian as well as non-Newtonian fluids through permeable boundaries which results in nonhomogeneous dynamic and kinematic boundary conditions. The flow is assumed to flow through the boundary only in the direction of the outer normaln, where the tangential components are assumed to be zero. These conditions take into account certain assumptions made on the curvature of the boundary regarding the surface density and the shape ofΩ; namely, that the curvature is constrained in a certain way. Stability of the rest state and uniqueness are proved for a special case where a “shear flow” is assumed.

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5

Kawase, Y. "Particle-fluid heat/mass transfer: Newtonian and non-Newtonian fluids." Wärme- und Stoffübertragung 27, no. 2 (February 1992): 73–76. http://dx.doi.org/10.1007/bf01590121.

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6

Hossain, Md Sarowar, Barnana Pal, and P. K. Mukhopadhyay. "Ultrasonic Characterization of Newtonian and Non-newtonian Fluids." Universal Journal of Physics and Application 12, no. 3 (September 2018): 41–46. http://dx.doi.org/10.13189/ujpa.2018.120302.

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7

Zhu, Bo, Minjae Lee, Ed Quigley, and Ronald Fedkiw. "Codimensional non-Newtonian fluids." ACM Transactions on Graphics 34, no. 4 (July 27, 2015): 1–9. http://dx.doi.org/10.1145/2766981.

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8

Eichheimer, Philipp, Marcel Thielmann, Anton Popov, Gregor J. Golabek, Wakana Fujita, Maximilian O. Kottwitz, and Boris J. P. Kaus. "Pore-scale permeability prediction for Newtonian and non-Newtonian fluids." Solid Earth 10, no. 5 (October 23, 2019): 1717–31. http://dx.doi.org/10.5194/se-10-1717-2019.

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Abstract. The flow of fluids through porous media such as groundwater flow or magma migration is a key process in geological sciences. Flow is controlled by the permeability of the rock; thus, an accurate determination and prediction of its value is of crucial importance. For this reason, permeability has been measured across different scales. As laboratory measurements exhibit a range of limitations, the numerical prediction of permeability at conditions where laboratory experiments struggle has become an important method to complement laboratory approaches. At high resolutions, this prediction becomes computationally very expensive, which makes it crucial to develop methods that maximize accuracy. In recent years, the flow of non-Newtonian fluids through porous media has gained additional importance due to, e.g., the use of nanofluids for enhanced oil recovery. Numerical methods to predict fluid flow in these cases are therefore required. Here, we employ the open-source finite difference solver LaMEM (Lithosphere and Mantle Evolution Model) to numerically predict the permeability of porous media at low Reynolds numbers for both Newtonian and non-Newtonian fluids. We employ a stencil rescaling method to better describe the solid–fluid interface. The accuracy of the code is verified by comparing numerical solutions to analytical ones for a set of simplified model setups. Results show that stencil rescaling significantly increases the accuracy at no additional computational cost. Finally, we use our modeling framework to predict the permeability of a Fontainebleau sandstone and demonstrate numerical convergence. Results show very good agreement with experimental estimates as well as with previous studies. We also demonstrate the ability of the code to simulate the flow of power-law fluids through porous media. As in the Newtonian case, results show good agreement with analytical solutions.

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9

Whitelaw, D. S., Jim H. Whitelaw, and C. Arcoumanis. "BREAKUP OF DROPLETS OF NEWTONIAN AND NON-NEWTONIAN FLUIDS." Atomization and Sprays 6, no. 3 (1996): 245–56. http://dx.doi.org/10.1615/atomizspr.v6.i3.10.

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10

Wei, Y., E. Rame, L. M. Walker, and S. Garoff. "Dynamic wetting with viscous Newtonian and non-Newtonian fluids." Journal of Physics: Condensed Matter 21, no. 46 (October 29, 2009): 464126. http://dx.doi.org/10.1088/0953-8984/21/46/464126.

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11

Koplik, Joel, and Jayanth R. Banavar. "Reentrant corner flows of Newtonian and non-Newtonian fluids." Journal of Rheology 41, no. 3 (May 1997): 787–805. http://dx.doi.org/10.1122/1.550832.

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12

Jiang, Xiao F., Chunying Zhu, and Huai Z. Li. "Bubble pinch-off in Newtonian and non-Newtonian fluids." Chemical Engineering Science 170 (October 2017): 98–104. http://dx.doi.org/10.1016/j.ces.2016.12.057.

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13

Keslerová, Radka, and Karel Kozel. "Numerical Modelling of Newtonian and Non-Newtonian Fluids Flow." PAMM 8, no. 1 (December 2008): 10181–82. http://dx.doi.org/10.1002/pamm.200810181.

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14

Foucault, S., G. Ascanio, and P. A. Tanguy. "Coaxial Mixer Hydrodynamics with Newtonian and non-Newtonian Fluids." Chemical Engineering & Technology 27, no. 3 (March 5, 2004): 324–29. http://dx.doi.org/10.1002/ceat.200401996.

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15

Shaukat, Ayesha, Muhammad Mushtaq, Saadia Farid, Kanwal Jabeen, and Rana Muhammad Akram Muntazir. "A Study of Magnetic/Nonmagnetic Nanoparticles Fluid Flow under the Influence of Nonlinear Thermal Radiation." Mathematical Problems in Engineering 2021 (November 20, 2021): 1–15. http://dx.doi.org/10.1155/2021/2210414.

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The present research work scrutinizes numerical heat transfer in convective boundary layer flow having characteristics of magnetic ( Fe 3 O 4 ) and nonmagnetic ( Al 2 O 3 ) nanoparticles synthesized into two different kinds of Newtonian (water) and non-Newtonian (sodium alginate) convectional base fluids of casson nanofluid which integrates the captivating effects of nonlinear thermal radiation and magnetic field embedded in a porous medium. The characterization of electrically transmitted viscous incompressible fluid is taken into account within the Casson fluid model. The mathematical formulation of governing partial differential equations (PDEs) with highly nonlinearity is renovated into ordinary differential equations (ODEs) by utilizing the suitable similarity transform that constitutes nondimensional pertinent parameters. The transformed ODEs are tackled numerically by implementing b v p 4 c in MATLAB. A graphical illustration for the purpose of better numerical computations of flow regime is deliberated for the specified parameters corresponding to different profiles (velocity and temperature). To elaborate the behavior of Nusselt and skin friction factor, a tabular demonstration against the distinct specific parameters is analyzed. It is perceived that the velocity gradient of Newtonian fluids is much higher comparatively to non-newtonian fluids. On the contrary, the thermal gradient of non-Newtonian fluid becomes more condensed than that of Newtonian fluids. Graphical demonstration disclosed that the heat transfer analysis in non-Newtonian (sodium alginate)-based fluid is tremendously influenced comparatively to Newtonian (water)-based fluid, and radiation interacts with the highly denser temperature profile of non-Newtonian fluid in contrast to that of Newtonian fluid. Through such comparative analysis of magnetic or nonmagnetic nanoparticles synthesized into distinct base fluids, a considerable enhancement in thermal and heat transfer analysis is quite significant in many expanding engineering and industrial phenomenons.

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16

Shan, Jie, and Xiaojun Zhou. "The Effect of Bubbles on Particle Migration in Non-Newtonian Fluids." Separations 8, no. 4 (March 24, 2021): 36. http://dx.doi.org/10.3390/separations8040036.

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The movement of the gas–liquid interface caused by the movement of the bubble position will have an impact on the starting conditions for particle migration. This article quantifies the influence of moving bubbles on the starting conditions of particle migration in non-Newtonian fluids, and it aims to better understand the influence of bubbles moving in non-Newtonian fluids on particle migration to achieve more effective control. First, the forces and moments acting on the particles are analyzed; then, fluid dynamics, non-Newtonian fluid mechanics, extended DLVO (Derjaguin Landau Verwey Overbeek theory), surface tension, and friction are applied on the combined effects of particle migration. Then, we reasonably predict the influence of gas–liquid interface movement on particle migration in non-Newtonian fluids. The theoretical results show that the movement of the gas–liquid interface in non-Newtonian fluids will increase the separation force acting on the particles, which will lead to particle migration. Second, we carry out the particle migration experiment of moving bubbles in non-Newtonian fluid. Experiments show that when the solid–liquid two-phase flow is originally stable, particle migration occurs after the bubble movement is added. This phenomenon shows that the non-Newtonian fluid with bubble motion has stronger particle migration ability. Although there are some errors, the experimental results basically support the theoretical data.

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17

ALBAALBAKI, BASHAR, and ROGER E. KHAYAT. "Pattern selection in the thermal convection of non-Newtonian fluids." Journal of Fluid Mechanics 668 (January 5, 2011): 500–550. http://dx.doi.org/10.1017/s0022112010004775.

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The thermogravitational instability in a fluid layer of a non-Newtonian medium heated from below is investigated. Linear and weakly nonlinear analyses are successively presented. The fluid is assumed to obey the Carreau–Bird model. Although the critical threshold is the same as for a Newtonian fluid, it is found that non-Newtonian fluids can convect in the form of rolls, squares or hexagons, depending on the shear-thinning level. Similar to Newtonian fluids, shear-thickening fluids convect only in the form of rolls. The stability of the convective steady branches is carried out to determine under which specific conditions a pattern is preferred. The influence of the rheological and physical parameters is examined and discussed in detail.

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18

TOMITA, Yukio. "Flow of Non-Newtonian Fluids." Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan) 15, no. 4 (1987): 167–71. http://dx.doi.org/10.1678/rheology1973.15.4_167.

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19

Hao, Xiang, Zejian Leng, Hairong Wang, Feng Peng, and Qiang Yan. "CO2-switchable non-Newtonian fluids." Green Chemistry 22, no. 12 (2020): 3784–90. http://dx.doi.org/10.1039/d0gc00877j.

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20

Křen, Jiří, and Luděk Hynčík. "Modelling of non-Newtonian fluids." Mathematics and Computers in Simulation 76, no. 1-3 (October 2007): 116–23. http://dx.doi.org/10.1016/j.matcom.2007.01.006.

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21

Bloom, Frederick. "Attractors of non-Newtonian fluids." Journal of Dynamics and Differential Equations 7, no. 1 (January 1995): 109–40. http://dx.doi.org/10.1007/bf02218816.

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22

Charcosset, Catherine, and Lionel Choplin. "Ultrafiltration of non-newtonian fluids." Journal of Membrane Science 115, no. 2 (July 1996): 147–60. http://dx.doi.org/10.1016/0376-7388(96)00012-9.

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23

Jung, Jin M., Dong H. Lee, and Young I. Cho. "Non-Newtonian standard viscosity fluids." International Communications in Heat and Mass Transfer 49 (December 2013): 1–4. http://dx.doi.org/10.1016/j.icheatmasstransfer.2013.10.011.

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24

TOMITA, Yukio. "Flows of non-Newtonian fluids." JSME international journal 30, no. 270 (1987): 1877–84. http://dx.doi.org/10.1299/jsme1987.30.1877.

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25

Frehse, Jens, and Michael Růžička. "Non-homogeneous generalized Newtonian fluids." Mathematische Zeitschrift 260, no. 2 (November 21, 2007): 355–75. http://dx.doi.org/10.1007/s00209-007-0278-1.

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26

Bae, Hyeong-Ohk, and Bum Ja Jin. "Regularity of Non-Newtonian Fluids." Journal of Mathematical Fluid Mechanics 16, no. 2 (August 9, 2013): 225–41. http://dx.doi.org/10.1007/s00021-013-0149-y.

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27

Wan Daud, Wan Ramli. "Calendering of non-newtonian fluids." Journal of Applied Polymer Science 31, no. 8 (June 1986): 2457–65. http://dx.doi.org/10.1002/app.1986.070310806.

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28

Nag, Debabrata, and Amitava Datta. "Variation of the Recirculation Length of Newtonian and Non-Newtonian Power-Law Fluids in Laminar Flow Through a Suddenly Expanded Axisymmetric Geometry." Journal of Fluids Engineering 129, no. 2 (September 5, 2006): 245–50. http://dx.doi.org/10.1115/1.2409361.

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A numerical study has been carried out for the laminar flow of Newtonian and non-Newtonian power-law fluids through a suddenly expanded axisymmetric geometry. Mathematical correlations are proposed for the prediction of the length of the recirculating eddy in terms of Reynolds number, expansion ratio and rheological parameters. A wide range of expansion ratios (1.25⩽ER⩽8.0) has been covered for the Newtonian fluid and both the shear-thinning and shear-thickening flow characteristic fluids have been considered for the non-Newtonian fluids.

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29

El-Khatib, Noaman A. F. "Immiscible Displacement of Non-Newtonian Fluids in Communicating Stratified Reservoirs." SPE Reservoir Evaluation & Engineering 9, no. 04 (August 1, 2006): 356–65. http://dx.doi.org/10.2118/93394-pa.

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Summary The displacement of non-Newtonian power-law fluids in communicating stratified reservoirs with a log-normal permeability distribution is studied. Equations are derived for fractional oil recovery, water cut, injectivity ratio, and pseudorelative permeability functions, and the performance is compared with that for Newtonian fluids. Constant-injection-rate and constant-total-pressure-drop cases are studied. The effects of the following factors on performance are investigated: the flow-behavior indices, the apparent mobility ratio, the Dykstra-Parsons variation coefficient, and the flow rate. It was found that fractional oil recovery increases for nw > no and decreases for nw < no, as compared with Newtonian fluids. For the same ratio of nw /no, oil recovery increases as the apparent mobility ratio decreases. The effect of reservoir heterogeneity in decreasing oil recovery is more apparent for the case of nw > no . Increasing the total injection rate increases the recovery for nw > no, and the opposite is true for nw < no . It also was found that the fractional oil recovery for the displacement at constant total pressure drop is lower than that for the displacement at constant injection rate, with the effect being more significant when nw < no. Introduction Many of the fluids injected into the reservoir in enhanced-oil-recovery (EOR)/improved-oil-recovery (IOR) processes such as polymer, surfactant, and alkaline solutions may be non-Newtonian; in addition, some heavy oils exhibit non-Newtonian behavior. Flow of non-Newtonian fluids in porous media has been studied mainly for single-phase flow. Savins (1969) presented a comprehensive review of the rheological behavior of non-Newtonian fluids and their flow behavior through porous media. van Poollen and Jargon (1969) presented a finite-difference solution for transient-pressure behavior, while Odeh and Yang (1979) derived an approximate closed-form analytical solution of the problem. Chakrabarty et al. (1993) presented Laplace-space solutions for transient pressure in fractal reservoirs. For multiphase flow of non-Newtonian fluids in porous media, the problem was considered only for single-layer cases. Salman et al. (1990) presented the modifications for the Buckley-Leverett frontal-advance method and for the JBN relative permeability method for non-Newtonian power-law fluid displacing a Newtonian fluid. Wu et al. (1992) studied the displacement of a Bingham non-Newtonian fluid (oil) by a Newtonian fluid (water). Wu and Pruess (1998) introduced a numerical finite-difference solution for displacement of non-Newtonian fluids in linear systems and in a five-spot pattern. Yi (2004) developed a Buckley-Leverett model for displacement by a Newtonian fluid of a fracturing fluid having a Herschel-Bulkley rheological behavior. An iterative procedure was used to obtain a solution of the model. The methods available in the literature to predict linear waterflooding performance in stratified reservoirs are grouped into two categories depending on the assumption of communication or no communication between the different layers. In the case of noncommunicating systems, no vertical crossflow is permitted between the adjacent layers. The Dykstra-Parsons (1950) method is the basis for performance prediction in noncommunicating stratified reservoirs.

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30

Akbarzadeh, Pooria, Mahmood Norouzi, Reza Ghasemi, and Seyed Zia Daghighi. "Experimental study on the entry of solid spheres into Newtonian and non-Newtonian fluids." Physics of Fluids 34, no. 3 (March 2022): 033111. http://dx.doi.org/10.1063/5.0081002.

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This study experimentally investigates the entry of hydrophobic/hydrophilic spheres into Newtonian and Boger fluids. By considering solution of 82% glycerin and 18% water and solution of 80% glycerin, 20% water and 100 ppm polyacrylamide, Newtonian and Boger fluids are made, respectively. It has been tried that liquids' surface tension, density, and viscosity are almost the same. Thus, all dimensionless numbers are approximately the same at a similar impact velocity except for the elasticity number. A PcoDimaxS highspeed camera captures the spheres' trajectory from the impact to the end of the path. Regarding the range of released height ([Formula: see text]), the impact velocities are approximately in the range of [Formula: see text]. The role of fluid elasticity in combination with the sphere surface wettability on the air cavity formation/evolution/collapse is mainly studied. Also, the kinetics of the sphere motion (velocity, acceleration, and hydrodynamic force coefficient) is studied. The results show that air drawn due to the sphere's impact with the Newtonian liquid is more, and the pinch-off takes place later. Also, shedding bubbles are cusped-shaped in the Boger fluid, while in the Newtonian fluid, they are elliptical. In addition, the most significant impact of surface wettability is observed in the Newtonian fluid. Finally, the results reveal that the sphere in the Newtonian fluid can move faster and travel a longer distance in a specific time interval. The differences observed are closely related to the viscoelastic fluid's elasticity property and extensional viscosity.

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31

LINDNER, ANKE, DANIEL BONN, EUGENIA CORVERA POIRÉ, MARTINE BEN AMAR, and JACQUES MEUNIER. "Viscous fingering in non-Newtonian fluids." Journal of Fluid Mechanics 469 (October 15, 2002): 237–56. http://dx.doi.org/10.1017/s0022112002001714.

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We study the viscous fingering or Saffman–Taylor instability in two different dilute or semi-dilute polymer solutions. The different solutions exhibit only one non-Newtonian property, in the sense that other non-Newtonian effects can be neglected. The viscosity of solutions of stiff polymers has a strong shear rate dependence. Relative to Newtonian fluids, narrower fingers are found for rigid polymers. For solutions of flexible polymers, elastic effects such as normal stresses are dominant, whereas the shear viscosity is almost constant. Wider fingers are found in this case. We characterize the non-Newtonian flow properties of these polymer solutions completely, allowing for separate and quantitative investigation of the influence of the two most common non-Newtonian properties on the Saffman–Taylor instability. The effects of the non-Newtonian flow properties on the instability can in all cases be understood quantitatively by redefining the control parameter of the instability.

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32

Shetty, Mayank Udayakumar, and Dhananjay Vijay Kapse. "Fabrication and Validation of Rotational Viscometer." International Journal for Research in Applied Science and Engineering Technology 10, no. 7 (July 31, 2022): 728–31. http://dx.doi.org/10.22214/ijraset.2022.45341.

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Abstract: An efficient rotational viscometer capable of determining viscosity of Non-Newtonian fluids has been developed and the design of this viscometer is described in detail in this paper. The Equations to find the viscosity of fluids is described in this paper. Viscosity of a Non-Newtonian fluid (ketchup) is found. The instrument is calibrated using standard fluids and a correction coefficient is obtained. An efficient method to find the viscosity of Non-Newtonian fluids is introduce in this paper

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33

De Kee and, D., C. F. Chan Man Fong, and J. Yao. "Bubble Shape in Non-Newtonian Fluids." Journal of Applied Mechanics 69, no. 5 (August 16, 2002): 703–4. http://dx.doi.org/10.1115/1.1480822.

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The study of the behavior of bubbles in complex fluids is of industrial as well as of academic importance. Bubble velocity-volume relations, bubble shapes, as well as viscous, elastic, and surfactant effects play a role in bubble dynamics. In this note we extend the analysis of Richardson to a non-Newtonian fluid.

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34

Korobeinikov, A. "Numerical simulation of the oscillations of non-newtonian viscous fluids with a free surface." Journal of Applied Mathematics and Decision Sciences 4, no. 2 (January 1, 2000): 111–23. http://dx.doi.org/10.1155/s1173912600000080.

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Non-Newtonian fluids are increasingly being transported by a variety of vehicles. It has been observed that vehicles containing such fluids demonstrate behaviour which could be explained only by non-linearity characteristics of such fluids. In this paper small oscillations of non-Newtonian fluids in tanks are considered. A numerical method suitable for both Newtonian and non-Newtonian fluids is suggested. Examples of numerical simulations with emphasis on Bingham fluids are given to demonstrate effects of non-linear properties.

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35

Dolz, Manuel, Jesús Delegido, Alejandro Casanovas, and María-Jesús Hernández. "A Low-Cost Experiment on Newtonian and Non-Newtonian Fluids." Journal of Chemical Education 82, no. 3 (March 2005): 445. http://dx.doi.org/10.1021/ed082p445.

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36

Foucault, Stéphane, Gabriel Ascanio, and Philippe A. Tanguy. "Power Characteristics in Coaxial Mixing: Newtonian and Non-Newtonian Fluids." Industrial & Engineering Chemistry Research 44, no. 14 (July 2005): 5036–43. http://dx.doi.org/10.1021/ie049654x.

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37

Arcoumanis, C., L. Khezzar, D. S. Whitelaw, and B. C. H. Warren. "Breakup of Newtonian and non-Newtonian fluids in air jets." Experiments in Fluids 17, no. 6 (October 1994): 405–14. http://dx.doi.org/10.1007/bf01877043.

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38

Doludenko, A. N., S. V. Fortova, and E. E. Son. "The Rayleigh–Taylor instability of Newtonian and non-Newtonian fluids." Physica Scripta 91, no. 10 (September 21, 2016): 104006. http://dx.doi.org/10.1088/0031-8949/91/10/104006.

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39

Bouchendouka, Abdellah, Zine El Abiddine Fellah, Zakaria Larbi, Zineeddine Louna, Erick Ogam, Mohamed Fellah, and Claude Depollier. "Fractal Analysis of a Non-Newtonian Fluid Flow in a Rough-Walled Pipe." Materials 15, no. 10 (May 22, 2022): 3700. http://dx.doi.org/10.3390/ma15103700.

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The fully developed laminar flow of a viscous non-Newtonian fluid in a rough-walled pipe is considered. The fluid rheology is described by the power–law model (covering shear thinning, Newtonian, and shear thickening fluids). The rough surface of the pipe is considered to be fractal, and the surface roughness is measured using surface fractal dimensions. The main focus of this study lies in the theoretical investigation of the influence of the pipe surface roughness on the velocity profile and the Darcy friction factor of an incompressible non-Newtonian fluid. The plotted results demonstrate that shear thinning fluids are the most sensitive to the surface roughness compared with Newtonian and shear thickening fluids. For a particular value of the surface fractal dimension, there exists an intersection point where shear thinning, Newtonian, and shear thickening fluids behave the same way regarding the amplitude of the velocity profile and the friction factor. This approach has a variety of potential applications, for instance fluid dynamics in hydrology, blood flow in the cardiovascular system, and many industrial applications.

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40

Lin, Jaw Ren, and Shu Ting Hu. "Non-Newtonian Inertia Squeeze Film Characteristics in Rectangular Stepped Plates." Applied Mechanics and Materials 775 (July 2015): 73–77. http://dx.doi.org/10.4028/www.scientific.net/amm.775.73.

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A study of non-Newtonian inertia squeeze film in rectangular stepped plates has been presented in this paper. Applying the momentum integral method incorporating the micro-continuum theory of non-Newtonian fluids, a non-Newtonian inertia lubrication equation is derived. It is found that the fluid inertia effects yield in a higher normal load capacity as well as a longer squeeze film time as compared to the non-Newtonian stepped squeeze film in the absence of fluid inertia forces.

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41

Kaminsky, R. D. "Predicting Single-Phase and Two-Phase Non-Newtonian Flow Behavior in Pipes." Journal of Energy Resources Technology 120, no. 1 (March 1, 1998): 2–7. http://dx.doi.org/10.1115/1.2795006.

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Improved and novel prediction methods are described for single-phase and two-phase flow of non-Newtonian fluids in pipes. Good predictions are achieved for pressure drop, liquid holdup fraction, and two-phase flow regime. The methods are applicable to any visco-inelastic non-Newtonian fluid and include the effect of surface roughness. The methods utilize a reference fluid for which validated models exist. For single-phase flow, the use of Newtonian and power-law reference fluids are illustrated. For two-phase flow, a Newtonian reference fluid is used. Focus is given to shear-thinning fluids. The approach is theoretically based and is expected to be more accurate for large, high-pressure pipelines than present correlation methods, which are all primarily based on low-pressure, small-diameter pipe experimental data.

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Kwon, Kyung C., YoonKook Park, Tamara Floyd, Nader Vahdat, Erica Jackson, and Paul Jones. "Rheological Characterization of Shear-Thinning Fluids with a Novel Viscosity Equation of a Tank-Tube Viscometer." Applied Rheology 17, no. 5 (October 1, 2007): 51413–1. http://dx.doi.org/10.1515/arh-2007-0016.

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Abstract A tank-tube viscometer and its novel viscosity equation were developed to determine flow characteristics of non-Newtonian fluids. The objective of this research is to test capabilities of the tank-tube viscometer and its novel non-Newtonian viscosity equation by characterizing rheological behaviors of well-known polyethylene oxide (MW 8000000) aqueous solutions as non-Newtonian fluids with 60-w% sucrose aqueous solution as a reference calibration fluid. Non-Newtonian characteristics of 0.3 - 0.7 wt% polyethylene oxide aqueous solutions were extensively investigated with the tank-tube viscometer and its non-Newtonian viscosity equation over the 294 - 306 K temperature range, and 55 - 784 s-1 shear rate range. The 60-w% sucrose aqueous solution was used as a reference/calibration fluid for the tank-tube viscometer. Dynamic viscosity values of 60 w% sucrose aqueous solution were determined with the calibrated tank-tube viscometer and its Newtonian viscosity equation at 299.15 K, and compared with the literature values.

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Ewoldt, Randy H., and Chaimongkol Saengow. "Designing Complex Fluids." Annual Review of Fluid Mechanics 54, no. 1 (January 5, 2022): 413–41. http://dx.doi.org/10.1146/annurev-fluid-031821-104935.

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Taking a small step away from Newtonian fluid behavior creates an explosion in the range of possibilities. Non-Newtonian fluid properties can achieve diverse flow objectives, but the complexity introduces challenges. We survey useful rheological complexity along with organizing principles and design methods as we consider the following questions: How can non-Newtonian properties be useful? What properties are needed? How can we get those properties?

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Kozubková, Milada, Jana Jablonská, Marian Bojko, František Pochylý, and Simona Fialová. "Research of Flow Stability of Non-Newtonian Magnetorheological Fluid Flow in the Gap between Two Cylinders." Processes 9, no. 10 (October 15, 2021): 1832. http://dx.doi.org/10.3390/pr9101832.

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This paper deals with a mathematical modeling of flow stability of Newtonian and non-Newtonian fluids in the gap between two concentric cylinders, one of which rotates. A typical feature of the flow is the formation of a vortex flow, so-called Taylor vortices. Vortex structures are affected by the speed of the rotating cylinder and the physical properties of the fluids, i.e., viscosity and density. Analogy in terms of viscosity is assumed for non-Newtonian and magnetorheological fluids. Mathematical models of laminar, transient and turbulent flow with constant viscosity and viscosity as a function of the deformation gradient were formulated and numerically solved to analyze the stability of single-phase flow. To verify them, a physical experiment was performed for Newtonian fluids using visualizations of vortex structures—Taylor vortices. Based on the agreement of selected numerical and physical results, the experience was used for numerical simulations of non-Newtonian magnetorheological fluid flow.

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45

Onder, Ahmet, Rafet Yapici, and Omer Incebay. "An experimental performance comparison of Newtonian and non-Newtonian fluids on a centrifugal blood pump." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 236, no. 3 (January 11, 2022): 399–405. http://dx.doi.org/10.1177/09544119211057626.

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The use of substitute fluid with similar rheological properties instead of blood is important due to ethical concerns and high blood volume consumption in pump performance test before clinical applications. The performance of a centrifugal blood pump with hydrodynamic journal bearing is experimentally tested using Newtonian 40% aqueous glycerin solution (GS) and non-Newtonian aqueous xanthan gum solution of 600 ppm (XGS) as working fluids. Experiments are performed at four different rotational speeds which are 2700, 3000, 3300, and 3600 rpm; experiments using GS reach between 8.5% and 37.2% higher head curve than experiments using the XGS for every rotational speed. It was observed that as the rotational speed and flow rate increase, the head curve difference between GS and XGS decreases. This result can be attributed to the friction reduction effect when using XGS in experiments at high rotation speed and high flow rate. Moreover, due to different fluid viscosities, differences in hydraulic efficiency were observed for both fluids. This study reveals that the use of Newtonian fluids as working fluids is not sufficient to determine the actual performance of a blood pump, and the performance effects of non-Newtonian fluids are remarkably important in pump performance optimizations.

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46

Shi, Y., and G. H. Tang. "Lattice Boltzmann Simulation of Droplet Formation in Non-Newtonian Fluids." Communications in Computational Physics 17, no. 4 (April 2015): 1056–72. http://dx.doi.org/10.4208/cicp.2014.m333.

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AbstractNewtonian and non-Newtonian dispersed phase droplet formation in non-Newtonian continuous phase in T-junction and cross junction microchannels are investigated by the immiscible lattice BGK model. The effects of the non-Newtonian fluid power-law exponent, viscosity and interfacial tension on the generation of the droplet are studied. The final droplet size, droplet generation frequency, and detachment point of the droplet change with the power-law exponent. The results reveal that it is necessary to take into account the non-Newtonian rheology instead of simple Newtonian fluid assumption in numerical simulations. The present analysis also demonstrates that the lattice Boltzmann method is of potential to investigate the non-Newtonian droplet generation in multiphase flow.

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Dzierka, M., and P. Jurczak. "Review Of Applied Mathematical Models For Describing The Behaviour Of Aqueous Humor In Eye Structures." International Journal of Applied Mechanics and Engineering 20, no. 4 (December 1, 2015): 757–72. http://dx.doi.org/10.1515/ijame-2015-0049.

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Abstract In the paper, currently used methods for modeling the flow of the aqueous humor through eye structures are presented. Then a computational model based on rheological models of Newtonian and non-Newtonian fluids is proposed. The proposed model may be used for modeling the flow of the aqueous humor through the trabecular meshwork. The trabecular meshwork is modeled as an array of rectilinear parallel capillary tubes. The flow of Newtonian and non-Newtonian fluids is considered. As a results of discussion mathematical equations of permeability of porous media and velocity of fluid flow through porous media have been received.

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48

Ioannou, Nikolaos, Haihu Liu, Mónica Oliveira, and Yonghao Zhang. "Droplet Dynamics of Newtonian and Inelastic Non-Newtonian Fluids in Conﬁnement." Micromachines 8, no. 2 (February 15, 2017): 57. http://dx.doi.org/10.3390/mi8020057.

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Safouane, M., A. Saint-Jalmes, V. Bergeron, and D. Langevin. "Viscosity effects in foam drainage: Newtonian and non-newtonian foaming fluids." European Physical Journal E 19, no. 2 (February 2006): 195–202. http://dx.doi.org/10.1140/epje/e2006-00025-4.

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Jia, Wenpeng, Lei Shan, Wenling Zhang, Yonggang Meng, and Yu Tian. "Scaling magneto-rheology based on Newtonian and non-Newtonian host fluids." Smart Materials and Structures 27, no. 10 (September 14, 2018): 105019. http://dx.doi.org/10.1088/1361-665x/aaddbf.

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