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Relevant bibliographies by topics / Viscosity forces

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Academic literature on the topic 'Viscosity forces'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Viscosity forces"

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Joel, Bigley Ed.D*. "CHANGE VISCOSITY." Global Journal of Engineering Science and Research Management 6, no. 7 (2019): 41–56. https://doi.org/10.5281/zenodo.3345121.

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Every organization faces the need for change, but only some will thrive in an environment that requires a disruption. Competitive advantage, or even surviving with a defensible posture, will require that change is both controlled and suitably accelerated using a dispersed leadership cultural attribute. Some organizations spend significant capital to reinvent themselves, execute pre-emptive transformations, or conduct recalibrations. Even though most of these efforts fail to meet expectations, the assumption of a sure position in a market is naïve and fraught with risk. As business success

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Mao, Hongfei, Yanli He, Guanglin Wu, Jinbo Lin, and Ran Ji. "Study of Liquid Viscosity Effects on Hydrodynamic Forces on an Oscillating Circular Cylinder Underwater Using OpenFOAM®." Symmetry 13, no. 10 (2021): 1806. http://dx.doi.org/10.3390/sym13101806.

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By neglecting the viscosity of fluid and rotation in flow, the theory of potential flow cannot accurately predict the hydrodynamic forces on the structures under significant viscous effects. In this study, the effects of liquid viscosity on the hydrodynamic forces on a horizontal circular cylinder underwater with a large-amplitude forced oscillation were investigated. The study used a two-dimensional two-phase flow wave tank model based on the viscous fluid theory using the OpenFOAM® package. The numerical calculations were carried out under different types of liquid (i.e., liquid with differe

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Andersen, Pål Østebø, Liva Salomonsen, and Dagfinn Søndenaa Sleveland. "Characteristic Forced and Spontaneous Imbibition Behavior in Strongly Water-Wet Sandstones Based on Experiments and Simulation." Energies 15, no. 10 (2022): 3531. http://dx.doi.org/10.3390/en15103531.

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Forced and spontaneous imbibition of water is performed to displace oil from strongly water-wet Gray Berea (~130 mD) and Bentheimer (~1900 mD) sandstone core plugs. Two nonpolar oils (n-heptane and Marcol-82) were used as a non-wetting phase, with viscosities between 0.4 and 32 cP and brine (1 M NaCl) for the wetting phase with viscosity 1.1 cP. Recovery was measured for both imbibition modes, and pressure drop was measured during forced imbibition. Five forced imbibition tests were performed using low or high injection rates, using low or high oil viscosity. Seventeen spontaneous imbibition e

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Byers, John, Denis Cohen, and Neal R. Iverson. "Subglacial clast/bed contact forces." Journal of Glaciology 58, no. 207 (2012): 89–98. http://dx.doi.org/10.3189/2012jog11j126.

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AbstractA laboratory device was built to measure the forces that ice exerts on a 0.05 m diameter rigid plastic sphere in two different configurations: in contact with a flat bed or isolated from the bed. Measurements indicated that bed-normal contact forces were 1.8 times larger than drag forces due to creeping flow past a slippery sphere isolated from the bed. Measurements of forces as a function of the bed-normal ice velocity, estimations of the ice viscosity parameter and observations of markers in the ice indicate ice is Newtonian with a viscosity of ~1.3x 1011 Pas. Newtonian behavior is e

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SHABANOV, Vsevolod Aleksandrovich. "MOTION OF VARIABLE VISCOSITY LIQUIDS IN POROUS MEDIA." Urban construction and architecture 4, no. 3 (2014): 73–76. http://dx.doi.org/10.17673/vestnik.2014.03.13.

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Motion of variable viscosity water drop in perfect soil model is viewed. Resistance forces are presented as amount sum of mass forces and forces depending on water drop speed and liquid viscosity. Resistance forces are ranged in accordance with coordinate and time. Three terms in each range are holded - quadratic terms are presented. It was shown that in this case the equation of the motion has the form of the Riccati equation. The equation factors have been defi ned experimentally. Mathematic model proves that in defi nes conditions water drop is stopped forming a slug.

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Bohiniková, Alžbeta, Iveta Jančigová, and Ivan Cimrák. "Modeling Red Blood Cell Viscosity Contrast Using Inner Soft Particle Suspension." Micromachines 12, no. 8 (2021): 974. http://dx.doi.org/10.3390/mi12080974.

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The inner viscosity of a biological red blood cell is about five times larger than the viscosity of the blood plasma. In this work, we use dissipative particles to enable the proper viscosity contrast in a mesh-based red blood cell model. Each soft particle represents a coarse-grained virtual cluster of hemoglobin proteins contained in the cytosol of the red blood cell. The particle interactions are governed by conservative and dissipative forces. The conservative forces have purely repulsive character, whereas the dissipative forces depend on the relative velocity between the particles. We de

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WIERZCHOLSKI, Krzysztof, and Andrzej MISZCZAK. "IMPACT OF ADHESION AND VISCOSITY FORCES ON FRICTION VARIATIONS IN BIO-TRIBOLOGICAL SYSTEMS." Tribologia 278, no. 2 (2018): 139–51. http://dx.doi.org/10.5604/01.3001.0012.6987.

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The classical theory of lubrication holds that the lubricant dynamic viscosity increments cause the increments of hydrodynamic pressure, as well as friction forces and wear. In the case of high values of hydrodynamic pressure, it very often has a significant impact on the friction coefficient. New achievements in the field of micro-and nano-tribology provide for new hypotheses on the decrements and increments of the friction coefficient in the case of the lubricant viscosity increments. Experimental investigations have shown that, even in the case of decrements of the friction coefficient with

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Idrees, Shenwar A., Lawand L. Mustafa, and Sabah S. Saleem. "Improvement Viscosity Index of Lubricating Engine Oil Using Low Molecular Weight Compounds." Science Journal of University of Zakho 7, no. 1 (2019): 14–17. http://dx.doi.org/10.25271/sjuoz.2019.7.1.572.

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the effect of polarity of solvent on the viscosity and viscosity index of lubricating engine oil has been studied using ethanol as an example of polar solvent and toluene as an example of non-polar solvent at different solvent ratios and ambient temperature and additionally other experiments have been done at five different temperatures including 100 oC. So that, the activation energy of viscous flow (Ea) was calculated, and for this purpose Arrhenius viscosity-temperature dependence has been applied and the results were 42.128, 29.256 and 35.417KJ/mole for lubricating engine oil mixed with et

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Huang, Felix C., James L. Patton, and Ferdinando A. Mussa-Ivaldi. "Manual Skill Generalization Enhanced by Negative Viscosity." Journal of Neurophysiology 104, no. 4 (2010): 2008–19. http://dx.doi.org/10.1152/jn.00433.2009.

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Recent human-machine interaction studies have suggested that movement augmented with negative viscosity can enhance performance and can even promote better motor learning. To test this, we investigated how negative viscosity influences motor adaptation to an environment where forces acted only in one axis of motion. Using a force-feedback device, subjects performed free exploratory movements with a purely inertia generating forces proportional to hand acceleration, negative viscosity generating destabilizing forces proportional to hand velocity, or a combination of the acceleration and velocit

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Merriman, T. L., and J. W. Kannel. "Apparatus for Extensional Viscosity Measurements." Journal of Tribology 119, no. 4 (1997): 700–703. http://dx.doi.org/10.1115/1.2833872.

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Although most analyses in tribology deal with the behavior of fluids in shear, many fluids, such as greases or printing inks, can develop significant forces when subjected to pure extension. These forces can impact performance, especially in the exit region of tribological interfaces. The resistance of a fluid to an imposed shear rate is a measure of the fluid’s shear viscosity (usually just referred to as its viscosity). The resistance of a fluid to an imposed extensional strain rate is a measure of the fluid’s extensional viscosity. In this paper, two techniques for the measurement of extens

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Dissertations / Theses on the topic "Viscosity forces"

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Bicep, Judith Anne. "Net motion of ocean plates via tidal forces and non-linear viscosity." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ61533.pdf.

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Manjooran, Navin Jose. "Van Der Waals Interactions Based Rheological Analysis for Electrosterically Stabilized Nano-Sized Alpha Silicon Carbide-Lactobacillus Gg Dispersions." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/26079.

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Although enormous potential benefits are envisioned with the application of nanotechnology in conjunction with biological systems, interactions of nano particulate materials with biological materials is not well understood. The focus of this dissertation is to determine the mathematical relationships of the forces between nanoparticles and biological agents. The systems under investigation are the alpha-SiC/H2O/LGG polar based systems. The mathematical analysis for the surface forces, based on the attractive van der Waals forces for the alpha-SiC/H2O/alpha-SiC and alpha-SiC/H2O/LGG polar sol

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Boritchev, Alexandre. "Equation de Burgers généralisée à force aléatoire et à viscosité petite." Palaiseau, Ecole polytechnique, 2012. https://pastel.hal.science/docs/00/73/97/91/PDF/ThA_se_fichier_principal.pdf.

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Cette thèse traite du comportement des solutions u de l'équation de Burgers généralisée sur le cercle: u_t+f'(u)u_x=\nu u_{xx}+\eta,\ x \in S^1=\R/\Z. Ici, f est lisse, fortement convexe et satisfait certaines conditions de croissance. La constante 0<\nu << 1 correspond à un coefficient de viscosité. Nous considérons le cas où \eta=0, ainsi que le cas où \eta est une force aléatoire, lisse en x et peu régulière (de type "kick" ou bruit blanc) en t. Nous obtenons des estimations sur les normes de Sobolev de u moyennées en temps et en probabilité de la forme C \nu^{-\delta}, \delta >

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Darwiche, Ahmad. "Microrhéomètre sur puce pour l'étude de l'écoulement d'un liquide proche d'une surface liquide." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2012. http://tel.archives-ouvertes.fr/tel-00738427.

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Ce travail porte sur l'étude du comportement rhéologique de fluide en milieu confiné. Pour cela le levier d'un microscope à force atomique (AFM) est utilisé pour sonder les propriétés rhéologiques d'un fluide confiné entre deux surfaces : la surface d'une sphère collée à l'extrémité du levier et une surface plane sur lequel le fluide est déposé. Le dispositif expérimental est constitué du système de mesure d'un AFM et d'un piézoélectrique permettant d'approcher ou d'éloigner de la sphère la surface plane. Un modèle analytique permet d'extraire les propriétés rhéologiques du fluide confiné à pa

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Voisin, Philippe. "Effet des forces de cisaillement sur l'activation des plaquettes sanguines : étude in vitro." Vandoeuvre-les-Nancy, INPL, 1987. http://www.theses.fr/1987NAN10323.

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Pasquignon, Denis. "Approximation de propagation de fronts avec ou sans termes locaux : application à la squelettisation de formes." Paris 9, 1999. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1999PA090027.

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L’objet de cette thèse est d’étudier la convergence de schémas d’approximation de propagations de fronts avec ou sans termes non locaux. Plus précisément, chaque point du front T, se déplace dans la direction normale avec une vitesse V = h(t. , x, ilt, ux. A)uT où h est une loi d’évolution dépendant de (f,x), de la normale extérieure ux de F, en x G T,, de la courbure A de F/ en x et de l’ensemble fb défini par r*. L’exemple le plus connu de ce type d’évolution est le mouvement par courbure moyenne: V = Ki/X. Dans la première partie, nous étudions dans IR' les propagations de fronts sans terme

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Syrén, Felicia. "Study on the suitability of a new method for in-situ viscosity measurement in industrial practice." Thesis, KTH, Materialvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147882.

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In this work cold model experiments in combination with Comsol modeling have been carried out to investigate the possibilities of a new method for industrial inline measurements of slag viscosities. The method aims at measuring the mass of the drag force as a sphere is dragged upwards in a liquid. The sphere was connected to a balance that was elevated at constant velocity. The liquids used were silicon oils of two different viscosities; 0.1 Pa*s and 0.5 Pa*s. A computer logged the mass from which the viscosity was calculated. Comsol modeling was used to show approximately at which time the dr

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Miller, Jeri L. "The influence of volume and viscosity on the distribution of anterior lingual force during the oral stage of swallowing /." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68222.

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The influence of bolus volume and viscosity on the distribution of anterior lingual force during the oral stage of swallowing was investigated using a new force transducer technology. The maximum force amplitudes from five normal adults were measured at anterior, right and left lateral tongue margins during ten volitional swallows of 5-, 10-, and 20-ml volumes of water, applesauce, and pudding. Results indicated significant increases in peak force amplitude as viscosity increased. Volume did not significantly influence maximum lingual force amplitudes. Individual subjects demonstrated consiste

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Boritchev, Alexandre. "Equation de Burgers g en eralis ée a force al éatoire et a viscosit é petite." Phd thesis, Ecole Polytechnique X, 2012. http://pastel.archives-ouvertes.fr/pastel-00739791.

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Cette thèse traite du comportement des solutions u de l'équation de Burgers généralisée sur le cercle: u_t+f'(u)u_x=\nu u_{xx}+\eta,\ x \in S^1=\R/\Z. Ici, f est lisse, fortement convexe et satisfait certaines conditions de croissance. La constante 0<\nu << 1 correspond à un coefficient de viscosité. Nous considérons le cas où \eta=0, ainsi que le cas où \eta est une force aléatoire, lisse en x et peu régulière (de type "kick" ou bruit blanc) en t. Nous obtenons des estimations sur les normes de Sobolev de u moyennées en temps et en probabilité de la forme C \nu^{-\delta}, \delta >= 0, avec le

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Baiti, Risa Nurin. "Characterization of nano-mechanical properties of biological lipid membranes with circular mode atomic force microscopy." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2403/document.

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Les membranes cellulaires sont impliquées dans de nombreux processus cellulaires : la diffusion des médicaments et des ions, la transduction des signaux, la génération d'énergie, le développement cellulaire (fusion et fission). Les bicouches phospholipides sont les principaux composants des membranes cellulaires, elles constituent une barrière dynamique protégeant les réactions biochimiques cellulaires. La détermination des propriétés biochimiques et mécaniques des bicouches lipidiques et leur évolution avec les conditions environnementales est nécessaire pour étudier la nature des processus c

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Books on the topic "Viscosity forces"

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Chou, Ru Ling. Derivation of revised formulae for eddy viscous forces used in the ocean general circulation model. Goddard Institute for Space Studies, 1988.

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Chou, Ru Ling. Derivation of revised formulae for eddy viscous forces used in the ocean general circulation model. National Aeronautics and Space Administration, Scientific and Technical Information Division, 1989.

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Darrigol, Olivier. The Probabilistic Turn (1876–1884). Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198816171.003.0005.

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This chapter deals with writings in which Boltzmann expressed the statistical nature of the entropy law and temporarily made the relation between entropy and combinatorial probability a basic constructive tool of his theory. In 1881, he discovered that this relation derived from what we now call the microcanonical distribution, and he approved Maxwell’s recent foundation of the equilibrium problem on the microcanonical ensemble. Boltzmann also kept working on problems he had tackled in earlier years. He proposed a new solution to the problem of specific heats, and he performed enormous calcula

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Escudier, Marcel. Introduction to Engineering Fluid Mechanics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.001.0001.

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Turbojet and turbofan engines, rocket motors, road vehicles, aircraft, pumps, compressors, and turbines are examples of machines which require a knowledge of fluid mechanics for their design. The aim of this undergraduate-level textbook is to introduce the physical concepts and conservation laws which underlie the subject of fluid mechanics and show how they can be applied to practical engineering problems. The first ten chapters are concerned with fluid properties, dimensional analysis, the pressure variation in a fluid at rest (hydrostatics) and the associated forces on submerged surfaces, t

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Li Bassi, Gianluigi, and J. D. Marti. Chest physiotherapy and tracheobronchial suction in the ICU. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0121.

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The airway lining fluid is a biphasic layer covering the respiratory tract epithelium. It has antimicrobial and immunomodulatory properties, and it is formed by a gel-phase (mucus), and a low-viscosity inner layer (sol-phase) that provides lubrication for ciliary beating. Mucus is continuously cleared from the airways through the ciliated epithelium and via the two-phase gas–liquid flow mechanism (i.e. coughing). Mucus production in healthy subjects is approximately 10–100 mL/day. Whereas, mucociliary clearance rates range between 4 and 20 mm/min. Critically-ill, mechanically-ventilated patien

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Abhishek, Abhishek, and Michael Doherty. Investigations of calcium pyrophosphate deposition. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199668847.003.0051.

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Joint aspiration and microscopic examination of the aspirated synovial fluid remains the gold standard for the diagnosis of calcium pyrophosphate crystal deposition (CPPD). If synovial fluid aspiration is not feasible, plain radiography and/or ultrasound scanning may be used to detect chondrocalcinosis (CC) which predominantly occurs due to calcium pyrophosphate (CPP) crystals, and this can be used as a diagnostic surrogate for CPPD as suggested by the EULAR Task Force. Acute CPP crystal arthritis often associates with a brisk acute phase response (elevated C-reactive protein (CRP) and/or eryt

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Book chapters on the topic "Viscosity forces"

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Decher, Reiner. "Drag, a Nightmare and a Challenge." In The Vortex and The Jet. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8028-1_4.

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AbstractMotion through a fluid is accompanied by a resistive force. Overcoming that is the price one has to pay to move. Drag is associated with the pressure forces on a structure as well as the shear forces experienced by virtue of the finite air viscosity and the tendency of air to be dragged along by the moving surface. Both kinds of forces are always present to varying degrees and they influence one another. Fortunately, the shear forces are small, though not negligibly small, compared to the dynamic forces associated with changing speed and they involved complicated physics in a small por

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Decher, Reiner. "Frictionless Air Cannot Provide Lift: A Paradox." In The Vortex and The Jet. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8028-1_3.

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AbstractEstablishinga vortex-like flow about an airfoil or wing requires the air to experience forces where adjacent elements of air share information about what the surfaces try to impose on the flow. The mechanism is shear and the finite viscosity of the air is a measure of the phenomena involved. The reality of viscous shear is what must distinguish the shapes of a wing’s leading and trailing edges.

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Uhlmann, Eckart, Robert Bolz, Mitchel Polte, and Luiz Schweitzer. "Reducing Waste in Liquid Silicone Rubber Process Chains by New Injection Mould Process Chain." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-93891-7_47.

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Abstract The number of components made of liquid silicon rubber (LSR) is following a global increasing trend. Due to the low viscosity, the different LSR types are suitable for injection moulding, as they can reproduce even the most complex structures. However, the low viscosity of LSR results in challenges regarding the manufacturing of the injection moulds. LSR injection mould manufacturers operate with highest effort to produce perfectly fitting mould inserts. In case of a perfect sealing, a venting of the cavities is limited, leading to defects in the moulded parts and consequently to an i

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Fan, Runlin, Junsheng Zheng, and Zize Zhan. "Penetration Behavior Analysis of Resin During the Impregnation Progress of Expanded Graphite Plates." In Proceedings of the 10th Hydrogen Technology Convention, Volume 1. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8631-6_29.

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AbstractResin impregnation is an important process in the manufacture of composite graphite bipolar plates to reduce their porosity and improve their air tightness as well as flexural strength. In order to improve the filling efficiency of resin into expanded graphite plates and to investigate the factors influencing the resin penetration process, we compare the penetration rate and the upper limit of absorption of epoxy resin, acrylic resin and water in graphite plates. It was found that capillary force is part of the driving forces for resin penetration into the graphite plates, while the bo

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Hager, Bradford H. "Mantle Viscosity: A Comparison of Models from Postglacial Rebound and from the Geoid, Plate Driving Forces, and Advected Heat Flux." In Glacial Isostasy, Sea-Level and Mantle Rheology. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3374-6_23.

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Hallström, M., and P. Dejmek. "The Viscosity of Whole Milk Concentrates." In MILK the vital force. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-3733-8_118.

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Sharma, Dinesh K., and D. N. Prasad. "Prediction of Shelf Life of UHT-Processed Milk through Viscosity Change." In MILK the vital force. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-3733-8_141.

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Rudyak, V. Ya, A. A. Belkin, E. A. Tomilina, and V. V. Egorov. "Nanoparticle Friction Force and Effective Viscosity of Nanosuspensions." In Diffusion in Solids and Liquids III. Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-51-5.566.

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Cornet, R., and M. Colombini. "La Viscosite Comme Evaluation de la Texture du Yaourt Brasse." In MILK the vital force. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-3733-8_160.

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Kundt, W. "Magnetic Viscosity as the Dominant Shear Force in Accretion Disks." In Galactic and Intergalactic Magnetic Fields. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0569-6_42.

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Conference papers on the topic "Viscosity forces"

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He, Rui Yang, and Chun Jiang. "Experiment and Data Analysis of Spheres Falling in Bounded System." In 12th Annual International Conference on Material Science and Engineering. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-kmd8tg.

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In an open or unbounded system, when a solid sphere freely falls into a liquid, it accelerates until it reaches a terminal velocity. At this point, the gravitational force, buoyant force, and viscous drag acting on the sphere are balanced. Stokes' law describes that in a laminar flow state, the viscous drag on the sphere is proportional to its radius, velocity, and viscosity coefficient. In this paper, an experimental system was constructed and the vertical and horizontal positions of spheres were measured with different sizes and densities in liquids of different diameters and viscosities, an

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Wolek, Sarah, Michael E. O'Brien, and Jeff Janos. "Polyols for Improved Durability of Pipeline Coatings." In Coatings+ 2020. SSPC, 2020. https://doi.org/10.5006/s2020-00076.

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Abstract The durability of a coating can be described in a simplified manner as how well it adheres to the substrate and how well it performs over time once exposed to the environment. Oil and gas pipeline coatings need to withstand exposure to both mechanical and chemical forces for long periods of time to extend the life of the pipeline. A new class of 100% solids polyester polyols have been developed which can offer improved performance in urethane coating applications compared to other common protective systems such as epoxies, aspartics and solventborne polyesters. Coatings made with the

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Jones, Lynette A. "Motor Strategies and Perceptual Resolution." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2417.

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Abstract The focus of this research is on the motor strategies used by subjects to perceive force and viscosity and to determine the relation between these strategies and perceptual performance. In the present experiments the forces and movements made by subjects were recorded as they judged the viscosity of an electro-mechanical system by moving their forearm. Computer-controlled viscous forces were presented to subjects and differential thresholds were measured using an adaptive two-alternative forced-choice psychophysical technique. The threshold averaged 19% across subjects and ranged from

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Padron, Simon, Dumitru I. Caruntu, and Karen Lozano. "Influence of Viscosity on Forcespinning™ Dynamics." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-85964.

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Forcespinning™ is a novel method that makes use of centrifugal forces to produce nanofibers rapidly and at high yields. A 2D computational Forcespinning™ viscous fluid dynamics model is developed, that improves on previous models. The fluid dynamics equations are solved using themethod of multiple scales along with the finite difference method, and including slender-jet theory assumptions. The effects that the Reynolds (Re) number has on the resulting fiber trajectory, radius, and tangential velocity are presented.

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Fontes, Adriana, Selma Giorgio, Archimedes de Castro, Jr., et al. "Determination of fluid viscosity and femto Newton forces of Leishmania amazonensis using optical tweezers." In Optics & Photonics 2005, edited by Kishan Dholakia and Gabriel C. Spalding. SPIE, 2005. http://dx.doi.org/10.1117/12.620745.

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Adler, C. L., and N. M. Lawandy. "Picoliter viscosity measurements using nondegenerate two-wave mixing." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.mtt6.

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Nondegenerate two-wave mixing (NDTWM) has been previously used to measure the relaxation time of solid-state systems. In an artificial Kerr medium, the relaxation time is the time for a particle to diffuse a portion of the index grating induced by radiation-pressure forces. This time is proportional to the viscosity of the medium. Our work demonstrates the use of NDTWM as a viscometer for picoliter volumes. Experiments were performed to measure the viscosity of suspensions of 0.090 µm diameter polystyrene microspheres titrated with known quantities of water and glycerol. Good quantitative agre

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Fontes, Adriana, Selma Giorgio, Archimedes B. de Castro, Jr., et al. "Determination of femto Newton forces and fluid viscosity using optical tweezers: application to Leishmania amazonensis." In Biomedical Optics 2005, edited by Dan V. Nicolau, Joerg Enderlein, Robert C. Leif, Daniel L. Farkas, and Ramesh Raghavachari. SPIE, 2005. http://dx.doi.org/10.1117/12.586427.

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Sommer, J. H., T. M. Nordlund, M. McGuire, and G. McLendon. "Picosecond Time-Resolved Fluorescence Spectra of Ethidium Bromide: Evidence for a non-activated reaction." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/up.1986.mf9.

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Considerable interest centers around the relationship between isomerization rates and solvent viscosity. These isomerizations are viewed as activated processes which proceed across a barrier. This barrier differs from the classical barrier of transition-state theory by possessing both an activation (potential) energy and friction. The viscosity determines the friction at the barrier. Both excessively low and excessively high viscosities tend to hinder the isomerization; high viscosities decelerate the rate of crossing at the top of the barrier, while low viscosities provide insufficient therma

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O’Rourke, Bryan, Donald Radford, and Rudolf Stanglmaier. "Tri-Axial Force Measurements on the Cylinder of a Motored SI Engine Operated on Lubricants of Differing Viscosity." In ASME 2009 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/ices2009-76037.

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Friction is a determining factor in the efficiency and performance of internal combustion engines. Losses in the form of friction work typically account for 10–20% of an engine’s output. Improvements in the friction characteristics of the power cylinder assembly are essential for reducing total engine friction and improving the mechanical efficiency of internal combustion engines. This paper describes the development and implementation of a new concept of the ‘floating liner’ engine at Colorado State University that allows 0.5 crank angle degree resolved measurement of the forces on the cylind

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Greci, Stephen, Michael Fripp, Ryan McChesney, and Ibrahim El Mallawany. "Novel Density-Based Autonomous Inflow Control Device Using Artificial Gravity." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205914-ms.

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Abstract A new class of Autonomous Inflow Control Devices, AICDs, has been developed which balances production flow and restricts unwanted production fluids, even when there is no viscosity difference in the produced fluids. This novel AICD senses the density difference between oil and water and uses artificial gravity to amplify the buoyancy forces while eliminating the need for downhole orientation in the completion. AICDs have effectively reduced water production and increased oil recovery since their introduction in the early 2010s. During initial production, AICDs balance the flow across

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Reports on the topic "Viscosity forces"

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Li, Zhilin, Kuzufumi Ito, and Ming-Chih Lai. An Augmented Approach for Stokes Equations With Discontinuous Viscosity and Singular Forces. Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada446726.

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Klammler, Harald. Introduction to the Mechanics of Flow and Transport for Groundwater Scientists. The Groundwater Project, 2023. http://dx.doi.org/10.21083/gxat7083.

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Starting from Newton’s laws of motion and viscosity, this book is an introduction to fundamental aspects of fluid dynamics that are most relevant to groundwater scientists. Based on a perspective of driving versus resisting forces that govern the motion of a fluid, the author derives Darcy’s law for flow through porous media by drawing an analogy to Bernoulli’s law for fluid with negligible viscosity. By combining the effects of gravity and pressure, the author identifies hydraulic head as a convenient numerical quantity to represent the force driving groundwater flow. In contrast to the physi

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Zhao, Bei, James Laszlo, and Heather Kaminsky. PR-461-14602-R02 Sample Mixing and Centrifugal Forces on Density and Sediment-Water Results. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011492.

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The crude oil being transported by pipeline varies widely in density, viscosity, sulfur content, and other fluid properties. In a custody transfer, both parties are concerned with the quantity and the quality of the crude oil since this determines the monetary value of the transaction. The objective of this project is to investigate various factors that can impact accurate determination of the density, sediment and water content of crude. The findings will be critical to improve current procedures, including proper sample mixing and handling, analytical methodologies, and operation parameters,

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Chatagny, Laurent. PR-471-16206-R02 Suction Piping Effect on Pump Performance CFD. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011562.

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CFD simulations of pump suction piping coupled to a double suction volute pump were performed with oil at a viscosity of ~90 cSt. Two variants of the suction piping were modeled in order to investigate their effect on the pump performance. Measurement data obtained during PRCI project CPR-15A were used to validate the CFD setup. The CFD results were mostly in line with the measurements, in particular performance and pressure tap values in the suction piping. The pump rotor forces predicted by CFD however showed significant differences to the measured values. The CFD setup presented in this rep

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Goldak, J. L51647 Welding on Fluid Filled and Pressurized Pipelines-Transient 3D Analysis. Pipeline Research Council International, Inc. (PRCI), 2000. http://dx.doi.org/10.55274/r0011356.

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The objective of this project was to determine if research in Computational Weld Mechanics had matured to the stage where it could simulate the process of welding on a pressurized pipeline and provide useful estimates of the risk of burn-through. To achieve that objective we have compared the results of our FEM analyzes of several welds with the experimental data reported in "http://www.prci.com/publications/L51763.htm" PR-185-9515, Repair of Pipelines by Direct Deposition of Weld Metal: Further Studies. The temperature and deformation predicted by our FEM analysis agrees quite well with the e

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Luc, Brunet. Systematic Equations Handbook : Book 1-Energy. R&D Médiation, 2015. http://dx.doi.org/10.17601/rd_mediation2015:1.

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The energy equation handbook is the complete collection of physically coherent expression of energy computed using from 2 to 7 physical units among: density(ML-3) energy (ML2T-2) time (T) force (MLT-2) power (ML2T-3) current (I) temperature (Th) quantity (N) mass (M) length (L) candela (J) surface (L2) volume (L3) concentration (ML-3) frequency (T-1) acceleration (LT- 2) speed (LT-1) pressure (ML-1T-2) viscosity (ML-1T-1) luminance (L- 2J) MolarMass (MN-1) MassicEnergy (L2T-2) resistance (ML2T-3I-2) voltage (ML2T-3I-1) Farad (M-1L-2T4I2) Thermal- Conductivity (MLT-3Th-1) SpecificHeat (L2T-2Th-

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Feng, Z., H. Gao, F. Perez-Cardenas, and I. Pegg. Summary and Recommendations on Viscosity and Electrical Conductivity Model Forms to Support LAW Vitrification, VSL-03L4480-2. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1971249.

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