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Thematische Bibliographien / Flow of immiscible fluids / Dissertationen

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Dissertationen zum Thema „Flow of immiscible fluids“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

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1

Kalejaiye, Bolarinwa Olumuyiwa. "The flow of miscible and immiscible fluids in the Earth's subsurface." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619654.

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2

Eastwood, Craig D. "The break-up of immiscible fluids in turbulent flows /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3044776.

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3

Fisher, Charles Edward. "The Effects of a Navier-Slip Boundary Condition on the Flow of Two Immiscible Fluids in a Microchannel." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/294.

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We consider the flow of two immiscible fluids in a thin inclined channel subject to gravity and a change in pressure. In particular, we focus on the effects of Navier slip along the channel walls on the long-wave linear stability. Of interest are two different physical scenarios. The first corresponds to two incompressible fluid layers separated by a sharp interface, while the second focuses on a more dense fluid below a compressible gas. From a lubrication analysis, we find in the first scenario that the system is stable in the zero-Reynolds number limit with the slip effects modifying the de

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4

Kiriakidis, Dionissios Georgios. "Computer simulations of two-fluid immiscible displacement flow in porous media." Thesis, University of Ottawa (Canada), 1991. http://hdl.handle.net/10393/7914.

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Two general-purpose computer programs have been developed for modelling the displacement of a wetting fluid by a non-wetting one in porous media. A microscopic approach is applied for the solution of the governing equations at the pore level. The porous medium is represented by a two-dimensional network of interconnected capillaries. One program makes use of a stochastic approach based on the aspects of random walks, invasion percolation and on the notion of the phase diagram for immiscible displacement. The other program makes use of a deterministic approach based on a relaxation technique in

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5

PIMENTEL, ISMAEL ANDRADE. "AN ADAPTIVE MESHFREE ADVECTION METHOD FOR TWO-PHASE FLOW PROBLEMS OF INCOMPRESSIBLE AND IMMISCIBLE FLUIDS THROUGH THREEDIMENSIONAL HETEROGENEOUS POROUS MEDIA." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33594@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Esta tese propõe um método meshfree adaptativo de advecção para problemas de fluxo bifásico de fluidos incompressíveis e imiscíveis em meios porosos heterogêneos tridimensionais. Este método se baseia principalmente na combinação do método Semi-Lagrangeano adaptativo com interpolação local meshfree usando splines poliharmônicas como funções de base radial. O método proposto é uma melhoria e uma extensão do método adaptativo meshfree AMMoC proposto por Iske e Kaser (2005) para

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6

Mayur, Manik. "Study of interface evolution between two immiscible fluids due to a time periodic electric field in a microfluidic channel." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00983473.

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Since the past decade, use of electro-osmotic flow (EOF) as an alternative flow mechanism in microdevices is becoming more popular due to its less bulky and low maintenance system design. However, one of the biggest shortcomings for its usage in mainstream applications is that it requires the concerned liquid to be electrically conductive. One idea can be to use the flow of conductive fluids to transport non-conductive liquids passively via interfacial shear transfer. Such an idea can has numerous applications in a wide range of fields like bio-chemical processing (e.g. lab-on-a-chip reactors,

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7

Lunda, Filip. "Studium proudění na rozhraní nemísitelných kapalin." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444285.

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This theses deals with flow of two immisible fluid in horizontal pipeline. First part teoretically describes immisible flow. What follows is experimental measurement in wich experimental track was adjusted for inlet of oil from the top. Water and corn germ oil were used as fluids. There were observed many modes of flow on the track. After that PIV was described and measured. PIV was done for measurement of values of velocity vectors. Simulation of one chosen mode was developed in the last chapter. This simulation was done in Ansys Fluent with help of VOF method. Simulation was done both in 3D

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8

Yang, Zhibing. "Multiphase Contamination in Rock Fractures : Fluid Displacement and Interphase Mass Transfer." Doctoral thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-183720.

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Multiphase flow and transport in fractured rock is of importance to many practical and engineering applications. In the field of groundwater hydrology an issue of significant environmental concern is the release of dense non-aqueous phase liquids (DNAPLs) which can cause long-term groundwater contamination in fractured aquifers. This study deals with two fundamental processes – fluid displacement and interphase mass transfer – concerning the behavior of the multiphase contaminants in fractured media. The focus of this work has been placed on improving the current understanding of small-scale (

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9

Xi, Shi Tong. "Transient turbulent jets of miscible and immiscible fluids." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38198.

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10

Schechter, David S. "Immiscible flow behaviour in porous media." Thesis, University of Bristol, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234777.

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11

Sheng, Jopan. "Multiphase immiscible flow through porous media." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/53630.

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A finite element model is developed for multiphase flow through soil involving three immiscible fluids: namely air, water, and an organic fluid. A variational method is employed for the finite element formulation corresponding to the coupled differential equations governing the flow of the three fluid phase porous medium system with constant air phase pressure. Constitutive relationships for fluid conductivities and saturations as functions of fluid pressures which may be calibrated from two-phase laboratory measurements, are employed in the finite element program. The solution procedure uses

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12

Pan, Xuefeng. "Immiscible two-phase flow in a fracture." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0025/NQ47907.pdf.

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13

Caruana, Albert. "Immiscible flow behaviour within heterogeneous porous media." Thesis, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285232.

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14

Pi, Haohong. "Analyse expérimentale-numérique de l'écoulement diphasique dans des modèles de milieu poreux sur puce microfluidique." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0126.

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Les expériences de déplacement en milieu poreux sont la méthode habituellement utilisée pour étudier l'écoulement biphasique immiscible. Cependant, malgré les aspects de reproductibilité, un inconvénient majeur est que ces expériences de type "boîte noire" ne permettent pas d'observer et de capturer les phénomènes clés à l'échelle des pores, y compris les interactions interfaciales et les détails sur la mobilisation de l'huile piégée (par exemple, la taille et la distribution des ganglions résiduels). C'est pourquoi les dispositifs micromodèles microfluidiques sont désormais largement utilisés

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15

Wang, Jin. "A numerical approach for the interfacial motion between two immiscible incompressible fluids." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092675815.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xiii, 152 p.; also includes graphics. Includes bibliographical references (p. 147-152).

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16

Rannou, Guillaume. "Lattice-Boltzmann method and immiscible two-phase flow." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26560.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Cyrus K. Aidun; Committee Member: Marc K. Smith; Committee Member: S. Mostafa Ghiaasiaan. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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17

McCarvill, John. "The dynamics of a moving boundary between immiscible fluids in a porous medium /." Online version of thesis, 1991. http://hdl.handle.net/1850/11003.

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18

Jofre, Cruanyes Lluís. "Numerical simulation of multiphase immiscible flow on unstructured meshes." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/277545.

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The present thesis aims at developing a basis for the numerical simulation of multiphase flows of immiscible fluids. This approach, although limited by the computational power of the present computers, is potentially very important, since most of the physical phenomena of these flows often happen on space and time scales where experimental techniques are impossible to be utilized in practice. In particular, this research is focused on developing numerical discretizations suitable for three-dimensional (3-D) unstructured meshes. In detail, the first chapter delimits the considered multiphase f

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19

Kéchavarzi, Cédric. "Physical modelling of immiscible multiphase flow in porous media." Thesis, University of Cambridge, 2001. https://www.repository.cam.ac.uk/handle/1810/251766.

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20

Bristow, Robert Philip. "Micromodels of immiscible two-phase flow in porous media." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235763.

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The research is a study on the microscopic scale of the immiscible displacement of oil by water in a porous medium such as sandstone. Of particular interest (with application to the oil industry) are the residual saturation of oil, the permeability to water at residual oil saturation and the maximum trapped blob size. Initially the effects of gravity, surface tension and distribution of pore sizes were studied in a computer simulation of a buoyancy driven, quasi-static invasion. The rock was modelled as a three-dimensional lattice of spherical pores connected by narrow cylindrical throats. Wit

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21

Thompson, Matthew S. "Extensional Flow Blending of Immiscible Polymers with Nanoparticle Stabilization." Thesis, West Virginia University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10247747.

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<p> Polymer blending facilitates the combination of the attractive attributes of two or more polymers while compensating for the unfavorable ones. Most polymers are thermodynamically incompatible with one another, and their blending yields a two-phase microstructure. This morphology generally determines the mechanical and rheological properties of the blend system which then determine its applications. Morphology development typically involves deformation of the dispersed phase followed by drop breakup. However, drop coalescence competes with this process, and ultimately a balance must be

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22

Stokes, Jason R. "Swirling flow of viscoelastic fluids /." Connect to thesis, 1998. http://eprints.unimelb.edu.au/archive/00000686.

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23

Cordy, S. E. "Extensional flow of complex fluids." Thesis, Swansea University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636294.

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The work reported in this Thesis involves studies of the extensional deformation of complex fluids. Complex fluids are so-called in terms of their composition, microstructure and rheology. Of particular interest in the work reported herein is the extensional viscosity of mobile (low shear viscosity) fluids in uniaxial extensional (or elongational flows) as this form of fluid determination is of wide concern within the process industries and is an important part of efforts in rheometry (the science of rheological measurement) to develop appropriate techniques for the measurement of extensional

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24

Agg, D. A. "The flow of polymeric fluids." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233667.

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The thesis is concerned with the flow of polymeric fluids and their response to deformations. The current state of research into the rheology of polymers is reviewed and an introduction to non-Newtonian fluid mechanics is given. A novel numerical algorithm for simulating the flow of non-Newtonian fluids is presented, in which the fluid is represented by a set of Lagrangian particles embedded in it. Each particle carries a velocity and a stress with it as it moves through the flow geometry. The velocity gradient tensor and the divergence of the stress tensor are calculated for each particle by

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25

Nourdeen, Hasan. "Upscaling immiscible capillary-controlled two-phase flow in porous media." Thesis, Imperial College London, 2018. http://hdl.handle.net/10044/1/61482.

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This thesis focuses primary on two-phase displacements under capillary-controlled flow conditions at relatively large scales, considering solution techniques that capture the dynamics of two-phase displacements for homogeneous flow domains, and deriving representative averages for heterogeneous systems with strong spacial variations in two-phase properties. First, we review main flow mechanisms encountered at large scales when capillary forces dominate the displacement process, where we present main solution techniques for homogeneous flow domains and introduce analytical treatments for other

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26

Schmid, Karen Sophie. "Mathematical analysis, scaling and simulation of flow and transport during immiscible two-phase flow." Thesis, Heriot-Watt University, 2012. http://hdl.handle.net/10399/2547.

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Fluid flow and transport in fractured geological formations is of fundamental socio-economic importance, with applications ranging from oil recovery from the largest remaining hydrocarbon reserves to bioremediation techniques. Two mechanisms are particularly relevant for flow and transport, namely spontaneous imbibition (SI) and hydrodynamic dispersion. This thesis investigates the influence of SI and dispersion on flow and transport during immiscible two-phase flow. We make four main contributions. Firstly, we derive general, exact analytic solutions for SI that are valid for arbitrary petrop

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27

Miller, Joel C. "Shear flow instabilities in viscoelastic fluids." Thesis, University of Cambridge, 2006. https://www.repository.cam.ac.uk/handle/1810/245318.

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This dissertation is concerned with the theoretical study of the stability of viscoelastic shear flows. It is divided into two parts: part I studies inertialess coextrusion flows at large Weissenberg number where the instabilities are due to discontinuities in the elastic properties, and part II studies the effect of elasticity on the well-known inertial instabilities of inviscid flows with inflection points. We begin part I with a previously known short-wave instability of Upper Convected Maxwell and Oldroyd–B fluids at zero Reynolds number in Couette flow. We show that if the Weissenberg num

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28

Karimfazli, Ida. "Buoyancy-driven flow of viscoplastic fluids." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54981.

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We study natural convection of viscoplastic fluids in 2D domains. A sufficiently large yield stress introduces a static solution to the Navier–Stokes equations that may not otherwise exist. We find conditions that guarantee such motionless regimes and investigate flow development between static and advective states. Considering three problems, we explore the various ways in which the yield stress modifies the hydrodynamics of steady and transient natural convection. We start by analyzing natural convection in an infinitely long rectangular cavity. Flow is driven by a constant horizontal temper

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29

Ducharme, Réjean 1970. "Capillary flow of non-Newtonian fluids." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23392.

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The flow of a two-dimensional incompressible non-Newtonian fluid, showing a viscoelastic behavior, has been studied using the White-Metzner model with a phenomenological law for the viscosity, the Spriggs' truncated power-law model. Our goal was to determine if these models could generate the oscillating instabilities appearing in such fluids at very high driving force. We studied the effect of various quantities on the time-dependent numerical simulations and noticed that the mesh length was not very important for the accuracy of the results. However, the time constant modulus appearing in th

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30

Al-Sharify, Zainab Talib Abidzaid. "Flow and mixing of complex fluids." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7673/.

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The mixing of complex fluids in stirred reactors is widly used in many industries. Mechanically agitated vessels are widely used in these industries such as wastewater treatment, pharmaceuticals, nuclear and food processing. Complex fluids are frequently encountered in these industries. There is growing interest in developing and studying these fluids, especially for those of shear thickening (ST) behaviour, due to the importance of their industrial applications such as flexible body armor and force damping applications which can protect a person from danger or risk and ultimately saveone’s li

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31

Wilson, Helen Jane. "Shear flow instabilities in viscoelastic fluids." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.625082.

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The dissertation is concerned with the stability of channel flows of viscoelastic fluids. The content is primarily theoretical. The dissertation begins with a review of instabilities observed in experiments and then attempts to elucidate possible mechanisms using linear stability theory. The first section considers a previously known interfacial instability in coextrusion flows, whose mechanism is purely elastic. This instability is investigated in different parameter régimes for an Oldroyd-B fluid. The next section generalises the study to a continuously stratified fluid, and finds that a cl

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32

Elgibaly, Ahmed Ahmed Mohamed. "The simultaneous flow of two immiscible liquids through a porous medium." Thesis, University of Salford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239994.

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33

Chi, Bo Kyung Leal L. Gary. "The motion of immiscible drops and the stability of annular flow /." Diss., Pasadena, Calif. : California Institute of Technology, 1986. http://resolver.caltech.edu/CaltechETD:etd-10102005-095730.

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34

Kristensen, Aleksander. "Flow properties of water-based drilling fluids." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23107.

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The objective of this master thesis was to investigate the flow properties of water based drilling fluids, utilizing measurements in both the micro and macro scale. The research was performed on two realistic drilling fluids by the use of a viscometer, a rheometer and a realistic flow loop, where the latter represents the macro scale. The research outcome could possibly improve the understanding of flow behavior in wellbores, and remove uncertainties associated with annular friction. The two fluids utilized in the research was made up with the goal of having equal rheological qualities, when

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35

Ahilan, R. V. "Flow of cohesionless grains in oscillatory fluids." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304431.

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36

Jupp, Laurence. "Dynamic modeling of complex fluids under flow." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288304.

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37

Tshehla, Maashutha Samuel. "Two dimensional flow of variable viscosity fluids." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/4936.

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38

Boukany, Pouyan E. "Nonlinear Flow Behavior of Entangled DNA Fluids." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1226681246.

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39

Lenci, Alessandro <1989&gt. "Flow of Complex Fluids in Geological Fractures." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amsdottorato.unibo.it/10124/1/Lenci2022.pdf.

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In this study, the lubrication theory is used to model flow in geological fractures and analyse the compound effect of medium heterogeneity and complex fluid rheology. Such studies are warranted as the Newtonian rheology is adopted in most numerical models because of its ease of use, despite non-Newtonian fluids being ubiquitous in subsurface applications. Past studies on Newtonian and non-Newtonian flow in single rock fractures are summarized in Chapter 1. Chapter 2 presents analytical and semi-analytical conceptual models for flow of a shear-thinning fluid in rock fractures having a simplifi

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40

Topayev, Sultan. "Taylor-Couette flow for shear-thinning fluids." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0301.

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On s’intéresse aux instabilités secondaires dans un écoulement de Taylor-Couette en grand entrefer pour un fluide rhéofluidifiant. Des études théorique, expérimentale et numérique ont été mises en œuvre. D’un point de vue théorique, une analyse faiblement non linéaire a été développée en régime dit TVF (Taylor Vortex Flow) pour rendre compte des premiers effets de la non linéarité de la loi de comportement sur la structure de l’écoulement. Le comportement rhéologique du fluide est décrit par le modèle de Carreau. Des effets significatifs du caractère rhéofluidifiant ont été mis en évidence : L

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41

Chilakamarri, Kiran Babu. "Rotating and stratified fluids /." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487584612163036.

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42

Chilcott, Mark David. "Mechanics of non-Newtonian fluids." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329946.

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43

Lee, Peter D. "Organometallic synthesis in supercritical fluids." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336862.

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44

González, Segredo Nélido Jesús. "Lattice-Boltzmann and lattice-gas simulations of binary immiscible and ternary amphiphilic fluids in two and three dimensions." Doctoral thesis, Universitat Autònoma de Barcelona, 2004. http://hdl.handle.net/10803/3368.

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45

Aloku, Gabriel Olayinka. "Dynamics of Foam Growth in Polymeric Fluids Flow." Thesis, University of Manchester, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.532207.

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46

Alaei, Kakhki Hossein. "Flow of shear-thinning fluids in geological media." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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As the primary conduits for water, oil, and geothermal resources, fractures and fracture flow are important in a wide range of applications, including water reservoir development, subsurface contamination, and petroleum and geothermal reservoir exploitation. Fracture flow estimations are subject to significant uncertainty and the role of rheology when the fluid is non-Newtonian makes the task considerably more difficult. In such a complex phenomenon, simple models allow us to qualitatively assess the effect of rheological and geometric characteristics on the flow. This study aims to investigat

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47

Haldenwang, Rainer. "Flow of non-newtonian fluids in open channels." Thesis, Cape Technikon, 2003. http://hdl.handle.net/20.500.11838/1042.

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Dissertation (DTech (Civil Engineering))--Cape Technikon, Cape Town, 2003<br>Flume design for homogeneous non-Newtonian fluids is problematic and not much research has been conducted in this field. This application is industrially important in mining where slurries have to be transported to processing or disposal sites at higher concentrations because water is becoming a scarce and expensive commodity. This thesis addresses the problem of flume design and develops predictive models for the laminar, transitional and turbulent flow behaviour of non-Newtonian fluids in rectangular open chann

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48

Sande, Hilde. "The Cauchy problem for a model of immiscible gas flow with large data." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for matematiske fag, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-5163.

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49

Boukili, Hamza. "Schémas de simulation d'un modèle à trois phases immiscibles pour application à l'explosion vapeur." Thesis, Aix-Marseille, 2020. http://www.theses.fr/2020AIXM0077.

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Dans ce travail, on étudie la modélisation d'écoulement à trois phases non miscibles. L'application visée est l'explosion vapeur, qui risque de se produire lorsqu'un constituant liquide (S) (métal liquide à haute température) rentre en contact avec un constituant relativement froid, qui est en général de l'eau présente sous forme liquide (L) et vapeur (V). Les principaux transferts ayant lieu sont de type dynamique (vitesse-pression) et thermodynamique (échanges de chaleur et de masse). Plus précisément, les transferts de chaleur apparaissent entre les phases S, L et V, tandis que le transfert

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Alba, Kamran. "Displacement flow of complex fluids in an inclined duct." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44642.

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This thesis studies buoyant displacement flows with two miscible fluids in pipes and 2D channels that are inclined at an angle β measured from vertical changing from 0° to 90°. The focus is on inclination angles away from nearly horizontal since these flows are previously studied in full details in the literature. Detailed experimental, analytical and computational approaches are employed in an integrated fashion. Both density stable (light fluid displacing heavy one) and density unstable (heavy fluid displacing light fluid) displacements are studied. For density stable flows the study is pur

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