Academic literature on the topic 'STOKES LAW'

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Journal articles on the topic "STOKES LAW"

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Cartwright, Julyan H. E. "Stokes' law, viscometry, and the Stokes falling sphere clock." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2179 (August 3, 2020): 20200214. http://dx.doi.org/10.1098/rsta.2020.0214.

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Clocks run through the history of physics. Galileo conceived of using the pendulum as a timing device on watching a hanging lamp swing in Pisa cathedral; Huygens invented the pendulum clock; and Einstein thought about clock synchronization in his Gedankenexperiment that led to relativity. Stokes derived his law in the course of investigations to determine the effect of a fluid medium on the swing of a pendulum. I sketch the work that has come out of this, Stokes drag, one of his most famous results. And to celebrate the 200th anniversary of George Gabriel Stokes’ birth I propose using the time of fall of a sphere through a fluid for a sculptural clock—a public kinetic artwork that will tell the time. This article is part of the theme issue ‘Stokes at 200 (part 2)’.
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Auerbach, David. "Some limits to Stokes’ law." American Journal of Physics 56, no. 9 (September 1988): 850–51. http://dx.doi.org/10.1119/1.15442.

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Nasyrov, V. V., and M. G. Nasyrova. "About the Stokes law applicability." Mathematical Structures and Modeling, no. 2 (54) (October 5, 2020): 40–48. http://dx.doi.org/10.24147/2222-8772.2020.2.40-48.

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We find the correction coefficient for the Stokes law that permit to use this formula in case of a spherical body in a tube with the glycerol. An interpolation formula for the correction coefficient for a motion with low-Reynolds-number is obtained.
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Nabarro, F. R. N. "Cottrell-stokes law and activation theory." Acta Metallurgica et Materialia 38, no. 2 (February 1990): 161–64. http://dx.doi.org/10.1016/0956-7151(90)90044-h.

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Schiller, Robert. "The Stokes-Einstein law by macroscopic arguments." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 37, no. 3 (1991): 549–50. http://dx.doi.org/10.1016/1359-0197(91)90033-x.

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Greenwood, Margaret Stautberg, Frances Fazio, Marie Russotto, and Aaron Wilkosz. "Using the Atwood machine to study Stokes’ law." American Journal of Physics 54, no. 10 (October 1986): 904–6. http://dx.doi.org/10.1119/1.14786.

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Marušić-Paloka, E. "On the Stokes Paradox for Power-Law Fluids." ZAMM 81, no. 1 (January 2001): 31–36. http://dx.doi.org/10.1002/1521-4001(200101)81:1<31::aid-zamm31>3.0.co;2-g.

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Barton, I. E. "Exponential-Lagrangian Tracking Schemes Applied to Stokes Law." Journal of Fluids Engineering 118, no. 1 (March 1, 1996): 85–89. http://dx.doi.org/10.1115/1.2817520.

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The exponential-Lagrangian tracking scheme applied to Stokes Law is developed by introducing a predictor-corrector formulation. The new predictor-corrector schemes are more accurate than the original scheme and are estimated to give a better performance taking into account the increased computational effort. The schemes are tested on two simple problems and the results are compared with the analytical solutions.
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Hu, Yuxi, and Reinhard Racke. "Compressible Navier–Stokes Equations with Revised Maxwell’s Law." Journal of Mathematical Fluid Mechanics 19, no. 1 (May 21, 2016): 77–90. http://dx.doi.org/10.1007/s00021-016-0266-5.

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Hong, Sun Ig, and Campbell Laird. "Deviations from Cottrell-Stokes law in cyclic deformation." Scripta Metallurgica et Materialia 26, no. 7 (April 1992): 1113–18. http://dx.doi.org/10.1016/0956-716x(92)90239-b.

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Dissertations / Theses on the topic "STOKES LAW"

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Erdmann, Robert Gerald. "Image-Based Numerical Simulation of Stokes Flow in Porous Media." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/195724.

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Numerical models for the simulation of longitudinal and transverse Stokes flow in cylindrical periodic porous media are presented. The models, which are based on a finite-volume formulation in primitive variables, utilize digital image representations of the geometries to simulate, making them particularly well-suited for the rapid automated analysis of creeping flow in porous media with complex morphologies. Complete details of the model formulations are given, including extensive treatment of the pressure boundary conditions at the solid-liquid interface needed to guarantee convergence with all possible geometries. The convergence behavior of both models is tested, and the models are shown to be second-order accurate.The models are used to simulate flow over the whole range of volume fractions of liquid in several regular geometries. The longitudinal model is used to simulate flow in square arrays of circular and square ducts, and both models are used to simulate flow in square and hexagonal arrays of circular cylinders and square arrays of square cylinders rotated by varying amounts. For each of the geometries, accurate empirical expressions for the Darcy permeability as a function of volume fraction solid are presented. Where applicable, model predictions of permeability are compared to existing analytical results.Subsequently, the models are used to simulate Stokes flow in random domains over a wide range of fractions liquid. The sequential random packing algorithm is used to generate 1,000 random packings of circular cylinders at each of 14 fractions of liquid, and longitudinal and transverse flow simulations are performed for each geometry. Histograms and summary statistics are computed for the permeability for each fraction liquid, and empirical expressions for mean permeability as a function of fraction liquid are given. The autocorrelation structure of the geometry and of the fluid velocity is analyzed, and an analysis of the scaling of longitudinal permeability variance is presented. In transverse flow at high packing densities, it is found that lightning-like patterns emerge in the fluid velocity. It is also found that the details of flows in such geometries are strongly sensitive to the placement of individual solid obstacles.
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Arimoto, Shinichi. "Numerical method for coupled analysis of Navier-Stokes and Darcy flows." Kyoto University, 2018. http://hdl.handle.net/2433/232352.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第21151号
農博第2277号
新制||農||1059(附属図書館)
学位論文||H30||N5125(農学部図書室)
京都大学大学院農学研究科地域環境科学専攻
(主査)教授 村上 章, 教授 川島 茂人, 教授 藤原 正幸
学位規則第4条第1項該当
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Franks, Susan J. "Mathematical modelling of tumour growth and stability." Thesis, Nottingham Trent University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366363.

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Hendrick, Angus Greer. "Effects of domain size on transverse permeability through random arrays of cylinders." Thesis, The University of Arizona, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3592730.

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Researchers using Darcy's law to model flow in porous media must satisfy the requirement for sufficient scale separation between the pore scale and the model scale. This requirement is analogous to that for any continuum model, where application is restricted to scales larger than the underlying discrete structure. In the case of Darcy's law when the model scale becomes too small, the measurement of the permeability—the material property required to close the relationship—becomes polluted by the boundary conditions, either physical or numerical. The requirements for adequate scale separation to obtain permeability measurements (also known as satisfying the conditions for a representative elementary volume, or REV, for permeability) have not been previously reported. Likewise, the behavior of Darcy models when applied at sub-REV length scales has not been reported.

Here, the results of Stokes simulations of transverse flow in 90,000 sequential random packings of monodisperse cylinders at a variety of liquid fractions and averaging-volume sizes show that approximately 200 cylinders must be present in an averaging volume before the effects of periodic boundary conditions on the Stokes simulations (the conventional choice for permeability measurements using Stokes flow) are no longer evident in the measured permeability. Direct comparisons between flow predictions from a two-dimensional, tensor-based Darcy model and a Stokes model for additional 10,000 domains show that the Darcy model is an unbiased predictor of the flow distribution in the system, even when the permeability is expected to contain boundary-condition artifacts. Though unbiased, the Darcy models do show considerable reduction in accuracy as the model scale shrinks toward the pore scale, with significant declines observed after the side length of a square averaging volume reaches 10 times the cylinder diameter. Finally, a novel approach for visualizing flows using the linear properties of the Stokes equations shows how the periodic boundary conditions affect the flow, and motivates the development of a generalized approach for obtaining permeability that does not require periodic boundary conditions. Modest improvements in the Darcy model relative to the actual Stokes flow result when the new approach is used to obtain permeability at small averaging volumes.

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Boussetouan, Imane. "Etudes théorique et numérique de quelques problèmes d'écoulements et de chaleur hyperbolique." Thesis, Saint-Etienne, 2012. http://www.theses.fr/2012STET4024.

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Ce travail de thèse a pour but d'étudier des écoulements non stationnaires de fluides incompressibles Newtoniens et non isothermes. Le problème est décrit par les lois de conservation de la masse, de la quantité de mouvement et de l'énergie. Nous nous intéressons au couplage entre le système de Navier-Stokes et l’équation de la chaleur hyperbolique (le résultat de la combinaison entre la loi de conservation d'énergie et la loi de Cattaneo). Cette dernière est une modification de la loi de Fourier utilisée habituellement, elle permet de surmonter « le paradoxe de la chaleur » et d'obtenir une description plus précise de la propagation de la chaleur. Le système couplé est un problème hyperbolique-parabolique dont la viscosité dépend de la température, alors que la capacité thermique et le terme de dissipation dépendent de la vitesse. Afin d’obtenir un résultat d'existence de solutions du problème couplé, nous démontrons d'abord l'existence et l'unicité de la solution du problème hyperbolique puis nous introduisons une discrétisation en temps et nous étudions la convergence des solutions approchées vers celles du problème original. Dans un deuxième temps nous étudions l'existence et l'unicité de la solution du système de Navier-Stokes muni des conditions aux limites de type Tresca puis de type Coulomb en dimension 2 et 3. Dans le chapitre 3, nous proposons une discrétisation en temps du problème d'écoulement dans le cas de la condition au limite de type Tresca et nous établissons la convergence des solutions approchées. Le dernier chapitre de ce mémoire est consacré à l'étude du problème couplé dans le cas de conditions aux limites de type Tresca. L'existence d'une solution est obtenue par un argument théorique de point fixe en dimension 2 et également par une méthode de discrétisation en temps qui conduit à résoudre sur chaque sous intervalle de temps un problème découplé pour la vitesse et la pression d'une part et la température d'autre part
The main objective of this thesis is to study nonstationary flows of incompressible Newtonian and non isothermal fluids. The problem is described by the laws of conservation of mass, momentum and energy. We consider the coupling between the Navier-Stokes system and the hyperbolic heat equation (the result of combination between the law of conservation of energy and the Cattaneo’s law). This one is a modification of the commonly used Fourier's law, it overcomes "the heat paradox" and gives a more accurate description of heat propagation. The coupled system is an hyperbolic-parabolic problem where the viscosity depends on the temperature but the thermal capacity and the dissipative term depend on the velocity. To obtain an existence result for the coupled system, we first prove the existence and uniqueness of the solution of the hyperbolic problem then we introduce a time discretization and we study the convergence of the approximate solutions to those of the original problem. In the second chapter, we study the existence and uniqueness of the solution of Navier-Stokes system with Tresca or Coulomb boundary conditions in dimension 2 and 3. In the third chapter, we propose a time discretization of the flow problem in the case of Tresca boundary conditions and we establish the convergence of the approximate solutions. The last chapter is devoted to the study of the coupled problem in the case of Tresca free boundary conditions. The existence of a solution is obtained by a theoretical argument (fixed-point theorem) in dimension 2 and also by a method of time discretization leading, on each time subinterval, to a decoupled problem for the velocity and pressure of a hand and the temperature of the other hand
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Polavieja, Gonzalo Garcia de. "Geometric phase and angle for noncyclic adiabatic change, revivals and measures of quantal instability." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325986.

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Debbiche, Hanene. "Sur des problèmes de lubrification stationnaires et instationnaires non isothermes." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSES027/document.

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L’objectif de ce travail de thèse est d’étudier quelques problèmes elliptiques et paraboliques d’écoulement de fluides non Newtoniens incompressibles et non isothermes gouvernés par l’équation aux dérivées partielles de Stokes avec la condition de Tresca sur une partie du bord quand la viscosité dépend à la fois de la température, de la vitesse et du module du tenseur des taux de déformations. Dans le premier chapitre, on a fait une introduction générale. Dans le deuxième chapitre, nous nous intéressons au couplage entre le système de Stokes et l’équation de la chaleur en régime stationnaire. On montre l’existence de la solution de l’inéquation variationnelle décrivant le système de Stokes pour une température donnée quand la viscosité dépend à la fois de la température, de la vitesse et du module du tenseur des taux de déformations en utilisant la méthode de monotonie pour la vitesse et le théorème de De Rham pour la pression. Dans un deuxième temps, on étudie l’existence et l’unicité de la température solution de l’équation de la chaleur avec un terme L1(Ω) au second membre quand la viscosité dépend à la fois de la température, de la vitesse et du module du tenseur des taux de déformations. On montre ensuite l’existence de la solution du problème variationnel couplé avec la viscosité dépend de la température et du module du tenseur des taux de déformations, en utilisant le théorème de point fixe de Schauder. Dans le troisième et le quatrième chapitre, on traite l’existence et l’unicité de la solution du système de Stokes en régime instationnaire quand la viscosité dépend de la température et du module du tenseur des taux de déformations dans les cas p = 2, p > 2 et 6 5 < p < 2 en utilisant la notion des semi-groupes et la méthode de monotonie pour la vitesse et le théorème de De Rham pour la pression. Par contre, lorsque la viscosité dépend de plus de la vitesse on obtient seulement l’existence par le théorème de point fixe de Schauder
The objective of this thesis is to study some elliptic and parabolic problems of the non-Newtonian flow of an incompressible and non isothermal fluid governed by partial differential equation of Stokes with Tresca’s condition on a part of the boundary when the fluid viscosity depends on temperature and also on the modulus of strain rate tensor and the velocity of the fluid. In the first chapter, we did a general introduction. In the second chapter, we consider the coupling between the Stokes systemand the heat equation in steady state. We prove the existence of a solution of the variational inequality describing the Stokes system when the fluid viscosity depends on temperature and also on the modulus of strain rate tensor and the velocity of the fluid of a given temperature by using the monotony methods for the velocity and De Rham’s theorem for the pressure. We study the existence and uniqueness of the temperature solution of the heat equation with L1 (Ω) term to the second member when the fluid viscosity depends on temperature and also on the modulus of strain rate tensor and the velocity of the fluid. We show the existence of a solution of the coupled variational problem when the fluid viscosity depends on temperature and also on the modulus of strain rate tensor by using Schauder fixed point theorem. In the third and the fourth chapter, we treate the existence and uniqueness of a solution of the Stokes system in unsteady state when the fluid viscosity depends only on temperature and on the modulus of strain rate tensor in the cases p = 2, p > 2 and 6 5 < p < 2 by using the notion of semigroup and monotony methods for the velocity and De Rham’s theorem for the pressure. However, when the fluid viscosity depends also on the velocity of the fluid we obtain only the existence by Schauder fixed point theorem
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Itami, Masato. "Non-equilibrium Statistical Theory for Singular Fluid Stresses." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215285.

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Sita, Ram Rao K. V. "Wall Effects In Packed Beds." Thesis, Indian Institute of Science, 1994. http://hdl.handle.net/2005/126.

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Packed beds find extensive application in a wide variety of industries. The objective of the present work is to analyze and evaluate the effects of the wall on structural characteristics, hydrodynamics and heat transfer in packed beds of spheres. As a first attempt, spheres of uniform size are considered. The cylindrical wall of the bed confines the location of the particles thus leading to significant radial variations in void fraction and specific lateral surface area. The two characteristics at any given radial position r* are estimated by defining a concentric cylindrical channel (CCC) of an arbitrary thickness such that its boundaries are equidistant from the cylindrical surface passing through r* and accounting for the solid volumes or lateral surface areas of the segments of spheres (cap, slice, rod and annular ring) contained in the CCC and with centers lying within a distance of a particle radius from r*.The curved boundaries of the sphere segments are rigorously accounted for. The low aspect ratio beds (aspect ratio less than or equal to 2) show three distinct types of behavior. In beds of aspect ratio 2, the void fraction starts from a value of unity at the wall and decreases to a minimum and then increases to unity at the center of the bed. In beds with aspect ratio between l\/¯3/2, there is a continuous decrease in void fraction from unity at the wall to a fairly low value towards the axis and then a slight increase followed by another decrease. The profiles for aspect ratio less than l\/¯3/2 show a continuous decrease from a value of unity at the wall to zero towards the axis. In contrast, beds of high aspect ratio show heavily damped oscillations in the void fraction up to about five particle diameters from the wall and then a constant value. The lateral surface area variations in low aspect ratio beds show a steep fall from a very high value near the wall, and in high aspect ratio beds an oscillatory nature, though not as strong as in the corresponding void fraction profiles. The distribution of flow in packed beds for steady flow of an incompressible Newtonian fluid under isothermal conditions is modeled by using Ergun equation with Brinkman-type correction to account for the viscous effects in the region close to the wall. The confining effect of the wall is incorporated through the radial variations in void fraction and specific lateral surface area. The hydraulic radius in the region next to the wall is modified to take into account the resistance of the wall surface to flow. The resulting model equations with appropriate boundary conditions are solved numerically by collocation technique. The influence of aspect ratio in the range 1.25 to 20.3 and Reynolds number from 0.1 to 1000, the two most important factors affecting the flow behavior, is evaluated. The velocity profiles show a peak in the region close to the wall thus indicating severe channeling effect in this region. The magnitude and location of the peak depend on aspect ratio and Reynolds number. The model predictions agree remarkably with reported experimental data on velocity profiles in a bed of aspect ratio 10.7, and on the effect of Reynolds number on friction factors in beds of low aspect ratio. The radial variations in void fraction, velocity and effective thermal conductivity are incorporated in the two-dimensional pseudo-homogeneous steady-state model to analyze the wall effects on heat transfer in packed beds. Both constant wall temperature and constant wall flux boundary conditions are adopted. The equations are solved numerically using finite difference technique. The radial temperature profiles are seen to be fairly uniform in beds of low aspect ratio thus showing that the often made assumption of complete radial thermal mixing in low aspect ratio beds is valid. Beds of high aspect ratio show strong radial gradients. For constant heat flux condition the slope of the temperature profile remains constant after a small distance from the Inlet thus leading to thermally fully-developed flow. For this condition the heat transfer equations are solved analytically to obtain expressions for Nusselt number and the radial temperature profiles. There is a significant difference in the temperature profiles evaluated in the presence and absence of wall effects. Good agreement is found between the Nusselt numbers obtained from the model and reported experimental data.
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Marusic-Paloka, Eduard. "Modélisation par homogénéisation des écoulements en milieux poreux fissurés." Saint-Etienne, 1995. http://www.theses.fr/1995STET4008.

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Dans cette thèse nous présentons plusieurs résultats qui concernent l'homogénéisation appliquée à la modélisation des milieux poreux. Elle est composée de quatre chapitres indépendants. Dans les premier et deuxième chapitres nous étudions le comportement effectif des solutions de l'équation de Laplace et du système de Stokes dans un milieu poreux, contenant une fissure mince. Suivant la relation entre la taille caractéristique des pores et l'épaisseur de la fissure nous trouvons trois modèles différents. Le troisième chapitre présente un résultat qui concerne les estimations d'erreur pour les correcteurs dans l'homogénéisation du système de Stokes et de Navier-Stokes, pour un milieu poreux. Dans le dernier chapitre nous étudions les effets inertiels pour un écoulement visqueux, rapide dans une couche ondulée. Nous trouvons une loi globale non linéaire
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Books on the topic "STOKES LAW"

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United States. Congress. House. Committee on Energy and Commerce. Melanie Blocker-Stokes Postpartum Depression Research and Care Act: Report (to accompany H.R. 20) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2007.

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United States. Congress. House. Committee on Energy and Commerce. Melanie Blocker-Stokes Postpartum Depression Research and Care Act: Report (to accompany H.R. 20) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2007.

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United States. Congress. House. Committee on Energy and Commerce. Melanie Blocker-Stokes Postpartum Depression Research and Care Act: Report (to accompany H.R. 20) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2007.

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United States. Congress. House. Committee on Energy and Commerce. Melanie Blocker-Stokes Postpartum Depression Research and Care Act: Report (to accompany H.R. 20) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2007.

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Melanie Blocker-Stokes Postpartum Depression Research and Care Act: Report (to accompany H.R. 20) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2007.

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The Melanie Blocker-Stokes Postpartum Depression Research and Health Care Act: Hearing before the Subcommittee on Health of the Committee on Energy and Commerce, House of Representatives, One Hundred Tenth Congress, first session, on H.R. 20, May 1, 2007. Washington: U.S. G.P.O., 2007.

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Green, Robert D. Preliminary results of a microgravity investigation to measure net charge on granular materials. Cleveland, Ohio: National Aeronautics and Space Administration, Glenn Research Center, 2003.

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Green, Robert D. Preliminary results of a microgravity investigation to measure net charge on granular materials. Cleveland, Ohio: National Aeronautics and Space Administration, Glenn Research Center, 2003.

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Stones left unturned: Law and transitional justice in Burundi. Antwerp: Intersentia, 2010.

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Lao Kang hui lai. Shanghai: Shanghai wen yi chu ban she, 2015.

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Book chapters on the topic "STOKES LAW"

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Gooch, Jan W. "Stokes’ Law." In Encyclopedic Dictionary of Polymers, 702. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11245.

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Zimmerman, Robert W., and In-Wook Yeo. "Fluid flow in rock fractures: From the Navier-Stokes equations to the cubic law." In Dynamics of Fluids in Fractured Rock, 213–24. Washington, D. C.: American Geophysical Union, 2000. http://dx.doi.org/10.1029/gm122p0213.

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Cebeci, Tuncer, Max Platzer, Hsun Chen, Kuo-Cheng Chang, and Jian P. Shao. "Navier-Stokes Methods." In Analysis of Low-Speed Unsteady Airfoil Flows, 153–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-27361-1_8.

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Foucault, A. P., E. Camacho Frias, C. G. Bordier, and F. Le Goffic. "Model Based on Stokes' Law as a Simple Way To Describe the Flow Pattern of the Mobile Phase in Centrifugal Partition Chromatography." In ACS Symposium Series, 62–75. Washington, DC: American Chemical Society, 1995. http://dx.doi.org/10.1021/bk-1995-0593.ch005.

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Sorlin, Sandrine. "Chapter 10. The Rolling Stones promoting Monty Python." In The Pragmatics of Irony and Banter, 195–20. Amsterdam: John Benjamins Publishing Company, 2018. http://dx.doi.org/10.1075/lal.30.10sor.

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Cebeci, Tuncer, Max Platzer, Hsun Chen, Kuo-Cheng Chang, and Jian P. Shao. "Applications of Navier-Stokes Methods." In Analysis of Low-Speed Unsteady Airfoil Flows, 191–210. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-27361-1_9.

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Meyer-Ohle, Hendrik. "Retail Policy: A Law for Large Stores." In Innovation and Dynamics in Japanese Retailing, 41–55. London: Palgrave Macmillan UK, 2003. http://dx.doi.org/10.1057/9780230510654_3.

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Lax, Peter D., and Maria Shea Terrell. "Divergence and Stokes’ Theorems and conservation laws." In Multivariable Calculus with Applications, 333–85. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-74073-7_8.

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Gusyatnikova, V. N., and V. A. Yumaguzhin. "Symmetries and Conservation Laws of Navier—Stokes Equations." In Symmetries of Partial Differential Equations, 65–81. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1948-8_3.

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Stolk, Sofia, and Renske Vos. "Once Upon a Time in International Law…" In International Law's Collected Stories, 1–16. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58835-9_1.

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Conference papers on the topic "STOKES LAW"

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Rodrigue, Denis. "Do Small Bubbles Follow Stokes Law?" In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31139.

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The motion of gas bubbles in a liquid medium is known to be affected by the presence of surface active molecules which modify the hydrodynamic conditions prevailing at the gas-liquid interface. In the past, gas bubbles rising in aqueous solutions have been said to follow Stokes law (rigid interface). In this work, we present some theoretical calculations and experimental data on the influence of surfactants for the motion of air bubbles rising in non-Newtonian solutions. It is shown that the rheology of the system introduces a complex balance of forces acting on the bubble.
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Dawson, Thomas H. "Rayleigh Law and Stokes Correction for High Waves in Heavy Seas." In Fourth International Symposium on Ocean Wave Measurement and Analysis. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40604(273)50.

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Dormidonov, A. E., V. P. Kandidov, V. O. Kompanets, and S. V. Chekalin. "General Law of Anti-Stokes Wing Formation in the Spectrum of Femtosecond Light Bullet." In 2018 International Conference Laser Optics (ICLO). IEEE, 2018. http://dx.doi.org/10.1109/lo.2018.8435246.

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Ulerich, Rhys, Kemelli C. Estacio-Hiroms, Nicholas Malaya, and Robert D. Moser. "A TRANSIENT MANUFACTURED SOLUTION FOR THE COMPRESSIBLE NAVIER-STOKES EQUATIONS WITH A POWER LAW VISCOSITY." In 10th World Congress on Computational Mechanics. Editora Edgard Blücher, 2014. http://dx.doi.org/10.5151/meceng-wccm2012-16661.

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Semipyatny, V. K., S. A. Khurshudyan, and A. B. Irazikhanov. "RESEARCH OF THE EXPONENTIAL RATE EQUATION TERM OF DROWNING PARTICLES ACCORDING TO THE STOKES LAW." In Aktualnye voprosy industrii napitkov. Izdatelstvo i tipografiya "Kniga-memuar", 2018. http://dx.doi.org/10.21323/978-5-6041190-3-7-2018-2-159-161.

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Sengupta, Dibyendu, and Alison L. Marsden. "A Computational Investigation of Murray’s Law Using 3-D Navier Stokes Solutions and Derivative-Free Optimization." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206879.

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Murray’s law has been the subject of continual investigation since its derivation in 1926. In his original work Murray solved a simple analytical optimization problem to minimize power requirements, balancing flow rate and metabolic function to find the optimal relationship between the radius of a parent and daughter vessel in a bifurcation along with the bifurcation angle. The cost function used in his work was the sum of a pressure loss term and a metabolic cost term. Minimizing this cost function, Murray derived the following relationship between parent and daughter vessels, rpα=rd1α+rd2α and an angle between the branches of 37.5°.
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Gavrilov, Andrey, Yaroslav Ignatenko, Oleg Bocharov, and Roger Aragall. "Turbulent Flow Simulation of Power-Law Fluid in Annular Channel." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-19108.

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Abstract Transient three-dimensional flow simulations of power–law fluid in a long axisymmetric annular channel considering 0.5 diameter ratio were performed. An in–house CFD code considering URANS (Unsteady Reynolds Averaged Navier–Stokes), 2D RANS (steady-state axially uniform 2D RANS) and LES (Large Eddy Simulation) approaches were compared to perform the simulations. Flow structure was analyzed. Numerical experiments showed that rotation of the inner cylinder (drill pipe) leads to two effects: decrease of apparent viscosity in the region close to the rotating cylinder, thus decreasing viscous shear stresses; development of secondary vorticity structures increasing energy loss. First mechanism decreases pressure losses and dominates when Re &lt; 300. At Re ∼ 300 the mechanisms compete with each other and pressure losses depends on power–law index n. At Re &gt; 300 mechanism of second vortex structured dominates and increases pressure loss with rotation. Pressure losses for two-dimensional steady-state and three-dimensional transient problems were compared. Pressure losses using a two-dimensional approach can be underestimated by up to 30%.
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Rezaeimoghaddam, Mohammad, Rasool Elahi, M. R. Modarres Razavi, and Mohammad B. Ayani. "Modeling of Non-Newtonian Fluid Flow Within Simplex Atomizers." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25266.

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In this paper the Volume-of-Fluid (VOF) method is used to simulate Newtonian and non-Newtonian fluid flow within simplex (pressure-swirl) atomizers. The two-dimensional axisymmetric swirl Navier-Stokes equations coupled with the VOF method is employed for accounting the formation mechanism of the liquid film inside the swirl chamber and the orifice hole of the pressure swirl atomizer. For verification of the code, the numerical results were compared with experimental data for large scale prototype injector with water (Newtonian fluid) as injection fluid in various constant inlet mass flow rate. By using power-law equation to calculate shear stress terms in the Navier-Stokes equations, the code is extended to compute Newtonian and non-Newtonian fluid flow inside the atomizer. The time-independent purely viscous power-law fluids flow in pressure-swirl atomizers is simulated. The effects of shear-thinning fluids (0.5 &lt; n &lt;1), viscous Newtonian (n = 1) fluids and shear thickening fluids (1&lt; n &lt; 1.5) on atomizers performance (discharge coefficient and spray cone angle) were investigated. Results were shown that with increasing the power-law index the spray cone angle decreases and the discharge coefficient increases.
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Najmon, Joel C., Tong Wu, and Andres Tovar. "A Parametric Study on the Effects of Reynolds Number on the Topology Optimization of Navier-Stokes Flows." In ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22690.

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Abstract Fluid-flow topology optimization (FTO) allows the generation of innovative flow-channel layouts with minimal pressure drop (power dissipation) between inlet and outlet ports in a given design domain. FTO was first explored using Stokes flow with the material in the design domain modeled as a porous medium governed by Darcy’s law. More recently, Navier-Stokes flow has been implemented to consider higher Reynolds numbers. The objective of this work is to demonstrate the effect of the Reynolds number on the FTO results and generate a set of design rules. To this end, a density-based FTO algorithm and an in-house finite element analysis code for incompressible Navier-Stokes flow are developed. The optimization process is updated using the method of moving asymptotes so that the flow’s potential power is maximized. The nonlinear Navier-Stokes equations are solved using a trust region Newton’s method. Sensitivity analysis is carried out using the adjoint method. A parametric study of the underlying parameters of the Reynolds number in two numerical examples shows the effect of the fluid’s dynamic viscosity and velocity on the optimized flow channels. The results show that fluids with the same Reynolds number, but with different dynamic viscosity or velocity values, can generate significantly different flow channels.
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Ihmoudah, Abdalsalam, M. A. Rahman, and Stephen D. Butt. "CFD and Experimental Studies of Yield Power-Law Fluids in Turbulent Pipe Flow." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77996.

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The transport of Non-Newtonian fluids through pipelines and mud circulation in wellbores often occur in turbulent flow regimes. In this study, experiments and computational fluid dynamics (CFD) models are used to examine the influence of yield power law (YPL) fluid rheological properties on pressure loss in the flow loop in turbulent flow. Three Non-Newtonian fluids at different concentrations of Xanthan gum solutions (0.05%, 0.10% and 0.15%, by weight) are studied at flow rates ranging between 400 and 800 L/min. A fully instrumented flow loop system was used, consisting of three main sections of different inclinations: 5 m long horizontal, 5 m vertical, and 3 m inclined 45° test section. Additionally, CFD codes of ANSYS CFX 17.2 are examined and compared to experimental results. These models are based on the Reynolds Averaged Navier-Stokes (RANS) equations. The comparison is done with the results of these investigations, based on vertical and horizontal pipe frictional pressure drops. The results show that the gap between experimental and CFD models has been increased in comparison with increase concentration Xanthan gum solution at the same density of fluids. Specifically, pressure loss rises with rises in the consistency index, k and flow behaviour index, However, rises in yield stress τ0 showed less impacts on frictional pressure losses. Given these simulation outcomes, it is clear that pressure drop in the Non-Newtonian fluid in one phase flow can be more accurately predicted by used the Reynolds-Stress Models (RSM) more than Eddy-viscosity models.
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Reports on the topic "STOKES LAW"

1

Hall, Wiley A., Robert L. Gladhill, Jeffrey Horlick, and Harvey W. Berger. Stove LAP handbook :. Gaithersburg, MD: National Bureau of Standards, 1985. http://dx.doi.org/10.6028/nbs.ir.85-3185.

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2

Serne, R. Jeffrey, David C. Lanigan, Joseph H. Westsik, Benjamin D. Williams, H. B. Jung, and Guohui Wang. Extended Leach Testing of Simulated LAW Cast Stone Monoliths. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1365453.

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Serne, R. Jeffrey, Joseph H. Westsik, Benjamin D. Williams, H. B. Jung, and Guohui Wang. Extended Leach Testing of Simulated LAW Cast Stone Monoliths. Office of Scientific and Technical Information (OSTI), July 2015. http://dx.doi.org/10.2172/1208783.

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Russell, Renee L., Joseph H. Westsik, David J. Swanberg, Russell E. Eibling, Alex Cozzi, Michael J. Lindberg, Gary B. Josephson, and Donald E. Rinehart. Letter Report: LAW Simulant Development for Cast Stone Screening Test. Office of Scientific and Technical Information (OSTI), March 2013. http://dx.doi.org/10.2172/1096128.

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5

Feizollahi, F., B. Teheranian, and W. J. Quapp. Alpha low-level stored waste systems design study. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/6914021.

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6

Feizollahi, F., B. Teheranian, and W. J. Quapp. Alpha low-level stored waste systems design study. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/10186100.

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7

Setiawan, Ken M. P., Bronwyn A. Beech Jones, Rachael Diprose, and Amalinda Savirani, eds. Women’s Journeys in Driving Change: Women’s Collective Action and Village Law Implementation in Indonesia. University of Melbourne with Universitas Gadjah Mada and MAMPU, 2020. http://dx.doi.org/10.46580/124331.

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This volume shares the life journeys of 21 women from rural villages from Sumatra, to Java, to Kalimantan, Sulawesi and East and West Nusa Tenggara (for ethical reasons, all names have been anonymised). In each of these villages, CSOs introduced and/or strengthened interventions to support gender inclusion, women’s collective action and empowerment. The stories of these village women offer unique insights into women’s aspirations, the challenges they have encountered and their achievements across multiple scales and domains, illustrating the lived complexities of women in rural Indonesia, particularly those from vulnerable groups. The stories shared highlight women’s own pathways of change and their resilience and determination often in the face of resistance from their families and communities, to ultimately reduce rural gender inequities and bolster gender inclusiveness. The stories also illustrate the important role CSOs—those that are focused on gender inclusion and facilitating grassroots women’s agency and empowerment—can play in supporting women’s voice and agency as they undertake this journey.
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Setiawan, Ken M. P., Bronwyn A. Beech Jones, Rachael Diprose, and Amalinda Savirani, eds. Women’s Journeys in Driving Change: Women’s Collective Action and Village Law Implementation in Indonesia. University of Melbourne with Universitas Gadjah Mada and MAMPU, 2020. http://dx.doi.org/10.46580/124331.

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This volume shares the life journeys of 21 women from rural villages from Sumatra, to Java, to Kalimantan, Sulawesi and East and West Nusa Tenggara (for ethical reasons, all names have been anonymised). In each of these villages, CSOs introduced and/or strengthened interventions to support gender inclusion, women’s collective action and empowerment. The stories of these village women offer unique insights into women’s aspirations, the challenges they have encountered and their achievements across multiple scales and domains, illustrating the lived complexities of women in rural Indonesia, particularly those from vulnerable groups. The stories shared highlight women’s own pathways of change and their resilience and determination often in the face of resistance from their families and communities, to ultimately reduce rural gender inequities and bolster gender inclusiveness. The stories also illustrate the important role CSOs—those that are focused on gender inclusion and facilitating grassroots women’s agency and empowerment—can play in supporting women’s voice and agency as they undertake this journey.
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9

Kim, Young. Hanford's Simulated Low Activity Waste Cast Stone Processing. Office of Scientific and Technical Information (OSTI), August 2013. http://dx.doi.org/10.2172/1090764.

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10

Chaplin, R. L., H. R. Kerchner, C. E. Klabunde, R. R. Coltman, Oak Ridge National Lab., TN (USA), and Coltman (R.R.), Knoxville, TN (USA)). Stored energy in fusion magnet materials irradiated at low temperatures. Office of Scientific and Technical Information (OSTI), August 1989. http://dx.doi.org/10.2172/5590862.

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