Thematische Bibliographien / Flow of immiscible fluids

Inhaltsverzeichnis

  1. Zeitschriftenartikel
  2. Dissertationen
  3. Bücher
  4. Buchteile
  5. Konferenzberichte
  6. Berichte der Organisationen

Auswahl der wissenschaftlichen Literatur zum Thema „Flow of immiscible fluids“

Autor: Grafiati
Veröffentlicht am 28. Juni 2021
Zuletzt aktualisiert am 3. Februar 2022

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Zeitschriftenartikel zum Thema "Flow of immiscible fluids"

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Mateen, Abdul. „Transient Magnetohydrodynamic flow of two immiscible Fluids through a horizontal channel“. International Journal of Engineering Research 3, Nr. 1 (01.01.2014): 13–17. http://dx.doi.org/10.17950/ijer/v3s1/104.

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Deng, Yongbo, Zhenyu Liu und Yihui Wu. „Topology Optimization of Capillary, Two-Phase Flow Problems“. Communications in Computational Physics 22, Nr. 5 (31.10.2017): 1413–38. http://dx.doi.org/10.4208/cicp.oa-2017-0003.

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AbstractThis paper presents topology optimization of capillary, the typical two-phase flow with immiscible fluids, where the level set method and diffuse-interface model are combined to implement the proposed method. The two-phase flow is described by the diffuse-interface model with essential no slip condition imposed on the wall, where the singularity at the contact line is regularized by the molecular diffusion at the interface between two immiscible fluids. The level set method is utilized to express the fluid and solid phases in the flows and the wall energy at the implicit fluid-solid interface. Based on the variational procedure for the total free energy of two-phase flow, the Cahn-Hilliard equations for the diffuse-interface model are modified for the two-phase flow with implicit boundary expressed by the level set method. Then the topology optimization problem for the two-phase flow is constructed for the cost functional with general formulation. The sensitivity analysis is implemented by using the continuous adjoint method. The level set function is evolved by solving the Hamilton-Jacobian equation, and numerical test is carried out for capillary to demonstrate the robustness of the proposed topology optimization method. It is straightforward to extend this proposed method into the other two-phase flows with two immiscible fluids.
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Hasnain, A., E. Segura und K. Alba. „Buoyant displacement flow of immiscible fluids in inclined pipes“. Journal of Fluid Mechanics 824 (10.07.2017): 661–87. http://dx.doi.org/10.1017/jfm.2017.367.

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We experimentally study the iso-viscous displacement flow of two immiscible Newtonian fluids in an inclined pipe. The fluids have the same viscosity but different densities. The displacing fluid is denser than the displaced fluid and is placed above the displaced fluid (i.e. a density-unstable configuration) in a pipe with small diameter-to-length ratio ($\unicode[STIX]{x1D6FF}\ll 1$). In the limit considered, six dimensionless groups describe these flows: the pipe inclination angle, $\unicode[STIX]{x1D6FD}$, an Atwood number, $At$, a Reynolds number, $Re$, a densimetric Froude number, $Fr$, a capillary number, $Ca$, and the fluids static contact angle, $\unicode[STIX]{x1D703}$. Our experiments, carried out in an acrylic pipe using wetting salt-water solutions displacing non-wetting oils, cover a fairly broad range of these parameters. Completely different patterns than those of miscible flows have been observed, governed by distinct dynamics. The wetting properties of the displacing liquid and fluids immiscibility are found to significantly increase the efficiency of the displacement. During the early stage of the displacement, strong shearing is observed between the heavy and light layers, promoting Kelvin–Helmholtz instabilities. At later stages, the intensity of Kelvin–Helmholtz instabilities is reduced. However, surface-tension-driven Rayleigh-type instabilities will remain active causing droplet shedding (pearling) at displaced fluid receding contact lines. The speed of the advancing displacing front (inversely related to the displacement efficiency) is measured and characterized in dimensionless maps suggesting high values at low ranges of $Re$ and $Ca$. Depending on the degree of flow stability and droplet formation, three major flow regimes namely viscous, transitionary and dispersed are characterized and classified in dimensionless maps. In the absence of a mean imposed velocity (exchange flow), it is found that capillary blockage may occur hindering Rayleigh–Taylor instabilities.
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Yadav, Pramod Kumar, und Sneha Jaiswal. „Influence of an inclined magnetic field on the Poiseuille flow of immiscible micropolar–Newtonian fluids in a porous medium“. Canadian Journal of Physics 96, Nr. 9 (September 2018): 1016–28. http://dx.doi.org/10.1139/cjp-2017-0998.

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The present problem is concerned with two-phase fluid flow through a horizontal porous channel in the presence of uniform inclined magnetic field. The micropolar fluid or Eringen fluid and Newtonian viscous fluid are flowing in the upper and lower regions of the horizontal porous channel, respectively. In this paper, the permeability of each region of the horizontal porous channel has been taken to be different. The effects of various physical parameters like angles of inclination of magnetic field, viscosity ratio, micropolarity parameter, etc., on the velocities, micro-rotational velocity of two immiscible fluids in horizontal porous channel, wall-shear stress, and flow rate have been discussed. The result obtained for immiscible micropolar–Newtonian fluids are compared with the results of two immiscible Newtonian fluids. The obtained result may be used in production of oil from oil reservoirs, purification of contaminated ground water, etc.
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Salin, D., und L. Talon. „Revisiting the linear stability analysis and absolute–convective transition of two fluid core annular flow“. Journal of Fluid Mechanics 865 (26.02.2019): 743–61. http://dx.doi.org/10.1017/jfm.2019.71.

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Numerous experimental, numerical and theoretical studies have shown that core annular flows can be unstable. This instability can be convective or absolute in different situations: miscible fluids with matched density but different viscosities, creeping flow of two immiscible fluids or buoyant flow along a fibre. The analysis of the linear stability of the flow equation of two fluids injected in a co-current and concentric manner into a cylindrical tube leads to a rather complex eigenvalue problem. Until now, all analytical solution to this problem has involved strong assumptions (e.g. lack of inertia) or approximations (e.g. developments at long or short wavelengths) even for axisymmetric disturbances. However, in this latter case, following C. Pekeris, who obtained, almost seventy years ago, an elegant explicit solution for the dispersion relationship of the flow of a single fluid, we derive an explicit solution for the more general case of two immiscible fluids of different viscosity, density and inertia separated by a straight interface. This formulation is well adapted to commercial software. First, we review the creeping flow limit (zero Reynolds number) of two immiscible fluids as it is used in microfluidics. Secondly, we consider the case of two fluids of different viscosities but of the same density in the absence of surface tension and also without diffusion (i.e. miscible fluids with infinite Schmidt number). In both cases, we study the transition from convective to absolute instability according to the different control parameters.
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Abd Elmaboud, Y., Sara I. Abdelsalam, Kh S. Mekheimer und Kambiz Vafai. „Electromagnetic flow for two-layer immiscible fluids“. Engineering Science and Technology, an International Journal 22, Nr. 1 (Februar 2019): 237–48. http://dx.doi.org/10.1016/j.jestch.2018.07.018.

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Sahu, Kirti Chandra, und Rama Govindarajan. „Linear stability analysis and direct numerical simulation of two-layer channel flow“. Journal of Fluid Mechanics 798 (13.06.2016): 889–909. http://dx.doi.org/10.1017/jfm.2016.346.

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We study the stability of two-fluid flow through a plane channel at Reynolds numbers of 100–1000 in the linear and nonlinear regimes. The two fluids have the same density but different viscosities. The fluids, when miscible, are separated from each other by a mixed layer of small but finite thickness, across which the viscosity changes from that of one fluid to that of the other. When immiscible, the interface is sharp. Our study spans a range of Schmidt numbers, viscosity ratios and locations and thicknesses of the mixed layer. A region of instability distinct from that of the Tollmien–Schlichting mode is obtained at moderate Reynolds numbers. We show that the overlap of the layer of viscosity-stratification with the critical layer of the dominant disturbance provides a mechanism for this instability. At very low values of diffusivity, the miscible flow behaves exactly like the immiscible one in terms of stability characteristics. High levels of miscibility make the flow more stable. At intermediate levels of diffusivity however, in both linear and nonlinear regimes, miscible flow can be more unstable than the corresponding immiscible flow without surface tension. This difference is greater when the thickness of the mixed layer is decreased, since the thinner the layer of viscosity stratification, the more unstable the miscible flow. In direct numerical simulations, disturbance growth occurs at much earlier times in the miscible flow, and also the miscible flow breaks spanwise symmetry more readily to go into three-dimensionality. The following observations hold for both miscible and immiscible flows without surface tension. The stability of the flow is moderately sensitive to the location of the interface between the two fluids. The response is non-monotonic, with the least stable location of the layer being mid-way between the wall and the centreline. As expected, flow at higher Reynolds numbers is more unstable.
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Kozubková, Milada, Jana Jablonská, Marian Bojko, František Pochylý und Simona Fialová. „Multiphase Flow in the Gap Between Two Rotating Cylinders“. MATEC Web of Conferences 328 (2020): 02017. http://dx.doi.org/10.1051/matecconf/202032802017.

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The research of liquids composed of two (or more) mutually immiscible components is a new emerging area. These liquids represent new materials, which can be utilized as lubricants, liquid seals or as fluid media in biomechanical devices. The investigation of the problem of immiscible liquids started some years ago and soon it was evident that it will have a great application potential. Recently, there has been an effort to use ferromagnetic or magnetorheological fluids in the construction of dumpers or journal bearings. Their advantage is a significant change in dynamic viscosity depending on magnetic induction. In combination with immiscible liquids, qualitatively new liquids can be developed for future technologies. In our case, immiscible fluids increase the dynamic properties of the journal hydrodynamic bearing. The article focuses on the stability of single-phase and subsequently multiphase flow of liquids in the gap between two concentric cylinders, one of which rotates. The aim of the analysis was to study the effect of viscosity and density on the stability/instability of the flow, which is manifested by Taylor vortices. Methods of experimental and mathematical analysis were used for the analysis in order to verify mathematical models of laminar and turbulent flow of immiscible liquids.
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Lemenand, Thierry, Pascal Dupont, Dominique Della Valle und Hassan Peerhossaini. „Turbulent Mixing of Two Immiscible Fluids“. Journal of Fluids Engineering 127, Nr. 6 (10.06.2005): 1132–39. http://dx.doi.org/10.1115/1.2073247.

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The emulsification process in a static mixer HEV (high-efficiency vortex) in turbulent flow is investigated. This new type of mixer generates coherent large-scale structures, enhancing momentum transfer in the bulk flow and hence providing favorable conditions for phase dispersion. We present a study of the single-phase flow that details the flow structure, based on LDV measurements, giving access on the scales of turbulence. In addition, we discuss the liquid-liquid dispersion of oil in water obtained at the exit of the mixer/emulsifier. The generation of the dispersion is characterized by the Sauter diameter and described via a size-distribution function. We are interested in a local turbulence analysis, particularly the spatial structure of the turbulence and the turbulence spectra, which give information about the turbulent dissipation rate. Finally, we discuss the emulsifier efficiency and compare the HEV performance with existing devices.
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IWATSUKI, HIROKI, NAOTO GOHKO, HIROSHI KIMURA, YUICHI MASUBUCHI, JUN-ICHI TAKIMOTO und KIYOHITO KOYAMA. „MOLECULAR ORIENTATION AND ELECTROHYDRODYNAMIC FLOW IN HOMOGENEOUS ER FLUIDS“. International Journal of Modern Physics B 15, Nr. 06n07 (20.03.2001): 973–79. http://dx.doi.org/10.1142/s0217979201005490.

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Homogeneous ER fluid is an ER fluid which consists of a homogeneous fluid only; it is neither a suspension nor a blend of immiscible liquids. Various liquid crystals are typical examples of homogeneous ER fluids. Recently, we have found that urethane-modified polypropylene glycol (UPPG) is one of the very few examples of homogeneous ER fluids which show no liquid crystalline order. In order to clarify the mechanism of the ER effect in this fluid, we have studied, in this paper, electrohydrodynamic flow under shear and electric field.
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Dissertationen zum Thema "Flow of immiscible fluids"

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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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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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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 decay rate of the stable perturbation. In the case of the Rayeligh-Taylor problem, slip along the less dense fluid wall has a destabilizing effect. In the second scenario, fluid inertia is pertinent, and we find neutral stability criteria are not significantly affected with the presence of slip.
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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 order to solve for the pressure field, and on certain rules for the advancement of the interface. The series of simulations undertaken successfully predicts certain important phenomena such as: (a) monophasic flow in porous media, (b) the effects of capillary and viscous forces on the dynamic behaviour of the displacing fluid and on the oil recovery, (c) the island formation and the island size distribution as a result of the interplay of viscous and capillary forces, (d) the fractal behaviour of the displacing fluid, (e) the transition from one distinct behaviour of the displacing fluid to another, and (f) the effects of local anisotropy and heterogeneity of the porous medium on the dynamic behaviour of the displacing fluid. The validity of the algorithms is tested by comparing the numerical results with physical experiments available in the literature. Comparisons between the two approaches reveal that (a) the stochastic approach is more efficient in terms of execution time in the computer, (b) the deterministic approach better describes the physics of the problem, and (c) the deterministic approach has more potential to be extended to other problems. It is proposed that the present programs can be used to successfully predict two-fluid immiscible displacement flow in porous media for other relevant situations.
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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
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
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 modelagem 2D de reservatórios de petróleo. Inicialmente este trabalho propõe um modelo em duas dimensões, contribuindo com uma melhoria significativa no cálculo do Laplaciano, utilizando os métodos meshfree de Hermite e Kansa. Depois, o método é ampliado para três dimensões (3D) e para um meio poroso heterogêneo. O método proposto é testado com o problema de five spot e os resultados são comparados com os obtidos por sistemas bem conhecidos na indústria de petróleo.
This thesis proposes an adaptive meshfree advection method for two-phase flow problems of incompressible and immiscible fluids through three-dimensional heterogeneous porous media. This method is based mainly on a combination of adaptive semi-Lagrangian method with local meshfree interpolation using polyharmonic splines as radial basis functions. The proposed method is an improvement and extension of the adaptive meshfree advection scheme AMMoC proposed by Iske and Kaser (2005) for 2D oil reservoir modeling. Initially this work proposes a model in two dimensions, contributing to a significant improvement in the calculation of the Laplacian, using the meshfree methods of Hermite and Kansa. Then, the method is extended to three dimensions (3D) and a heterogeneous porous medium. The proposed method is tested with the five spot problem and the results are compared with those obtained by well-known systems in the oil industry.
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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, mixers, etc.), to oil extraction from porous rock formations. One of the significant characteristics of micro-scale flows is high surface to volume ratio, which significantly highlights the role of multi-phase interfaces in such dynamics. The presence of a fluid-fluid interface in an EOF necessitates the characterization of the parameters responsible for hydrodynamic instability of such systems. The present work focuses on the role of steady and time-dependent electric stress (Maxwell stress), capillary force and disjoining pressure on fluid-fluid interfacial instability. A linear stability analysis of interfacial perturbation was performed for a thin film of electrolyte under DC and AC electric fields. Through long wave asymptotic analysis of the Orr-Sommerfeld equations, parametric stability thresholds of a thin aqueous film explored. Further, a set of experiments were performed in order to characterize the EOF in a rectangular microchannel. With the help of a Particle Tracking Velocimetry analysis, velocity distributions were obtained which agreed well to the theoretical values. This was further used to estimate PDMS zeta potential, which was found to be within the reported values in the existing literature. Liquid-liquid interfacial deformation was also explored under a time-periodic EOF and a wide range of the magnitudes of capillary force, and diffusive and convective transport.
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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 and 2D pipeline. In the end these simulation were compared with experiment measurement and were critically evaluated.
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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 (single fracture) physics by a combined effort of numerical modeling analysis, laboratory experiments and model development. This thesis contributes to the improved understanding through several aspects. Firstly, the effect of aperture variability, as characterized by geostatistical parameters such as standard deviation and correlation length, on the DNAPL entrapment, dissolution and source-depletion behaviors in single fractures was revealed. Secondly, a novel, generalized approach (adaptive circle fitting approach) to account for the effect of in-plane curvature of fluid-fluid interfaces on immiscible fluid displacement was developed; the new approach has demonstrated good performance when applied to simulate previously published experimental data. Thirdly, the performance of a continuum-based two-phase flow model and an invasion percolation model was compared for modeling fluid displacement in a variable-aperture fracture and the dependence of fracture-scale capillary pressure – saturation relationships on aperture variability was studied. Lastly, through experimental studies and mechanistic numerical modeling of DNAPL dissolution, kinetic mass transfer characteristics of two different entrapment configurations (residual blobs and dead-end pools) were investigated. The obtained understanding from this thesis will be useful for predictive modeling of multiphase contaminant behavior at a larger (fracture network) scale.
Flerfasflöde och ämnestransport i sprickigt berg är av betydelse för många praktiska och tekniska problem. Tunga, svårlösliga organiska vätskor (engelska: dense non-aqueous phase liquids: DNAPLs; t.ex. klorerade lösningsmedel) kan orsaka långvarig förorening av vattenresurser, inklusive akviferer i sprickigt berg, och utgör ett viktigt miljöproblem inom grundvattenhydrologin. Denna studie behandlar två fundamentala processer för spridning av flerfasföroreningar i sprickiga medier – utbredning av den organiska vätskan och massöverföring mellan organisk vätska och vatten. Arbetet har fokuserat på att förbättra nuvarande kunskap om de fysikaliska processerna på liten skala (enskilda sprickor) genom en kombination av numerisk modellering, laboratorieexperiment och modellutveckling. Avhandlingen har bidragit till utökad processförståelse i flera avseenden. För det första har arbetet belyst effekterna av sprickaperturens variabilitet, uttryckt med geostatistiska parametrar som standardavvikelse och rumslig korrelationslängd, på fastläggning och lösning av organiska vätskor i enskilda sprickor, samt utmattningsbeteendet hos dessa källor till grundvattenförorening. För det andra har en ny, generell metod (adaptiva cirkelpassningsmetoden) för att ta hänsyn till effekten av krökningen av gränsytan mellan organisk vätska och vatten i sprickplanet utvecklats; denna metod har visats fungera väl i simuleringar av tidigare publicerade experimentella data. För det tredje, har en jämförelse gjorts mellan en kontinuumbaserad tvåfasflödesmodell och en invasions-perkolationsmodell med avseende på hur väl de kan simulera tvåfasflöde i en spricka med varierande apertur. Här studerades även hur relationen mellan kapillärtryck och mättnadsgrad på sprickplansskala beror av variabiliteten i sprickapertur. Till sist undersöktes lösning av den organiska vätskan i grundvatten för två fastläggningsscenarier (fastläggning i immobila droppar och ansamling i fällor – ”återvändssprickor”) både genom experiment och mekanistisk numerisk modellering. Kunskapen som tagits fram i denna avhandling bedöms vara användbar även för att modellera spridningen av flerfasföroreningar på större (spricknätverks-) skalor.
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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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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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Bücher zum Thema "Flow of immiscible fluids"

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Corey, A. T. Mechanics of immiscible fluids in porous media. 3. Aufl. Highlands Ranch, Colo: Water Resources Publications, 1994.

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Corey, A. T. Mechanics of immiscible fluids in porous media. 2. Aufl. Littleton, Colo., U.S.A: Water Resources Publications, 1986.

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G, Chen. An overview of instability and fingering during immiscible fluid flow in porous and fractured media. Washington, DC: Division of Regulatory Applications, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1995.

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International, Conference on Subsurface Contamination by Immiscible Fluids (1990 Calgary Alta ). Subsurface contamination by immiscible fluids: Proceedings of the International Conference on Subsurfacae Contamination by Immiscible Fluids, Calgary, Canada, 18-20 April 1990. Rotterdam, Netherlands: A.A. Balkema, 1992.

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Meier, G. E. A., und F. Obermeier, Hrsg. Flow of Real Fluids. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/3-540-15989-4.

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Suo-Anttila, Ahti J. The mixing of immiscible liquid layers by gas bubbling. Washington, DC: Division of Reactor System Safety, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1988.

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King, Michael J. Stability of two dimensional immiscible flow to viscous fingering. New York: Courant Institute of Mathematical Sciences, New York University, 1985.

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Jou, David. Thermodynamics of Fluids Under Flow. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001.

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Jou, David, José Casas-Vázquez und Manuel Criado-Sancho. Thermodynamics of Fluids Under Flow. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04414-8.

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Jou, David, José Casas-Vázquez und Manuel Criado-Sancho. Thermodynamics of Fluids Under Flow. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0199-1.

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Buchteile zum Thema "Flow of immiscible fluids"

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Spanos, T. J. T., und Norman Udey. „Immiscible Fluid Flow in Porous Media“. In The Physics of Composite and Porous Media, 93–132. Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781351228329-5.

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Raje, Ankush, und M. Devakar. „MHD Flow and Heat Transfer of Immiscible Micropolar and Newtonian Fluids Through a Pipe: A Numerical Approach“. In Numerical Heat Transfer and Fluid Flow, 55–64. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_8.

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DiBenedetto, E. „The Flow of Two Immiscible Fluids through a Porous Medium Regularity of the Saturation“. In Theory and Applications of Liquid Crystals, 123–41. New York, NY: Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4613-8743-5_7.

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Natsui, Shungo, Ryota Nashimoto, Tatsuya Kikuchi und Ryosuke O. Suzuki. „SPH Analysis of Interfacial Flow of the two Immiscible Melts“. In Advances in Molten Slags, Fluxes, and Salts, 589–96. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119333197.ch63.

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Raje, Ankush, und M. Devakar. „Unsteady Magnetohydrodynamic Flow of Two Immiscible Fluids Through a Pipe in Presence of Heat Transfer“. In Advances in Intelligent Systems and Computing, 287–97. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9953-8_25.

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Natsui, Shungo, Ryota Nashimoto, Tatsuya Kikuchi und Ryosuke O. Suzuki. „SPH Analysis of Interfacial Flow of the Two Immiscible Melts“. In Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016, 589–96. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48769-4_63.

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Scholle, Markus, Marcel Mellmann, Philip H. Gaskell, Lena Westerkamp und Florian Marner. „Multilayer Modelling of Lubricated Contacts: A New Approach Based on a Potential Field Description“. In Springer Tracts in Mechanical Engineering, 359–75. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60124-9_16.

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AbstractA first integral approach, derived in an analogous fashion to Maxwell’s use of potential fields, is employed to investigate the flow characteristics, with a view to minimising friction, of shear-driven fluid motion between rigid surfaces in parallel alignment as a model for a lubricated joint, whether naturally occurring or engineered replacement. For a viscous bilayer arrangement comprised of immiscible liquids, it is shown how the flow and the shear stress along the separating interface is influenced by the mean thickness of the layers and the ratio of their respective viscosities. Considered in addition, is how the method can be extended for application to the more challenging problem of when one, or both, of the layers is a viscoelastic material.
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Azuma, H., S. Yoshihara, M. Ohnishi und T. Doi. „Upper Layer Flow Phenomena in Two Immiscible Liquid Layers Subject to a Horizontal Temperature Gradient“. In Microgravity Fluid Mechanics, 205–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-50091-6_22.

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Laziz, Afiq Mohd, und Ku Zilati Ku Shaari. „Effect of Flow Regime on Total Interfacial Area of Two Immiscible Fluids in Microchannel Reactor Using VOF Model“. In Advances in Material Sciences and Engineering, 585–97. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8297-0_61.

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Sethi, Rajandrea, und Antonio Di Molfetta. „Transport of Immiscible Fluids“. In Groundwater Engineering, 249–62. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20516-4_14.

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Konferenzberichte zum Thema "Flow of immiscible fluids"

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Lee, Y.-H., J. Azaiez und I. D. Gates. „Dynamics of Immiscible Radial Flow Displacements of Dilatant Fluids in Porous Media“. In The 4th World Congress on Momentum, Heat and Mass Transfer. Avestia Publishing, 2019. http://dx.doi.org/10.11159/enfht19.136.

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Jibben, Z., J. Velechovsky, T. Masser und M. Francois. „Surface Tension Capability Within an Adaptively Refined Compressible Flow Code“. In ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69451.

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We present a method to simulate surface tension between immiscible materials within an inviscid compressible flow solver. The material interface is represented using the volume of fluid technique with piecewise-linear interface reconstruction. We employ the continuum surface force model for surface tension, implemented in the context of the MUSCL-Hancock finite volume method for the Euler equations on an adaptively refined Eulerian mesh. We show results for droplet verification test cases.
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Sherlock, Donald H., Jason McKenna und Brian J. Evans. „Seismic physical modelling of immiscible fluid flow“. In SEG Technical Program Expanded Abstracts 2000. Society of Exploration Geophysicists, 2000. http://dx.doi.org/10.1190/1.1815717.

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Bakhtiyarov, Sayavur I., und Dennis A. Siginer. „A NOTE ON THE LAMINAR CORE-ANNULAR FLOW OF TWO IMMISCIBLE FLUIDS IN A HORIZONTAL TUBE“. In International Symposium on Liquid-Liquid Two Phase Flow and Transport Phenomena. Connecticut: Begellhouse, 1997. http://dx.doi.org/10.1615/ichmt.1997.intsymliqtwophaseflowtranspphen.110.

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Crandall, Dustin, Goodarz Ahmadi und Duane H. Smith. „Modeling of Immiscible, Two-Phase Flows in a Natural Rock Fracture“. In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78138.

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One potential method of geologically sequestering carbon dioxide (CO2) is to inject the gas into brine-filled, subsurface formations. Within these low-permeability rocks, fractures exist that can act as natural fluid conduits. Understanding how a less viscous fluid moves when injected into an initially saturated rock fracture is important for the prediction of CO2 transport within fractured rocks. Our study examined experimentally and numerically the motion of immiscible fluids as they were transported through models of a fracture in Berea sandstone. The natural fracture geometry was initially scanned using micro-computerized tomography (CT) at a fine volume-pixel (voxel) resolution by Karpyn et al. [1]. This CT scanned fracture was converted into a numerical mesh for two-phase flow calculations using the finite-volume solver FLUENT® and the volume-of-fluid method. Additionally, a translucent experimental model was constructed using stereolithography. The numerical model was shown to agree well with experiments for the case of a constant rate injection of air into the initially water-saturated fracture. The invading air moved intermittently, quickly invading large-aperture regions of the fracture. Relative permeability curves were developed to describe the fluid motion. These permeability curves can be used in reservoir-scale discrete fracture models for predictions of fluid motion within fractured geological formations. The numerical model was then changed to better mimic the subsurface conditions at which CO2 will move into brine saturated fractures. The different fluid properties of the modeled subsurface fluids were shown to increase the amount of volume the less-viscous invading gas would occupy while traversing the fracture.
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HANYGA, A. „DYNAMICS OF IMMISCIBLE TWO-PHASE FLUID RESERVOIR FLOW“. In Theoretical and Computational Acoustics 2003 - The Sixth International Conference (ICTCA). WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812702609_0014.

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Sivakami, L., und A. Govindarajan. „Unsteady MHD flow of two immiscible fluids under chemical reaction in a horizontal channel“. In THE 11TH NATIONAL CONFERENCE ON MATHEMATICAL TECHNIQUES AND APPLICATIONS. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5112342.

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Dankovic, Tatjana, Gareth Hatch und Alan Feinerman. „Fabrication of Plastic Micro-Channels for Microfluidics Solvent Extraction“. In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53526.

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In this work plastic micro channel systems were investigated as a potential device for micro solvent extraction of rare earth elements. The proposed microfluidic structures are made by laser welding of three layers of inexpensive thermoplastic films which form separate paths (top and bottom channels) for each of the immiscible fluids. The middle layer is perforated in order to provide contact between two fluids and to enable the extraction process. Experiments were performed to show that two different immiscible fluids (water and 1-octanol) can flow through the fabricated device and exit at separate outlets without mixing even when those fluids get into close contact within the main channel. Experimental results for single devices show that immiscible fluids can be brought into intimate contact and then separated with compliant polymeric microfluidic devices. The transfer of a compound from one immiscible fluid to the other was verified by dye exchange between the immiscible fluids. The same fabrication method is a promising technique for fabrication of massively parallel systems with larger throughput.
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Smith, Duane, Goodarz Ahmadi, Chuang Ji, Grant Bromhal und Martin V. Ferer. „Experimental and Numerical Study of Gas-Liquid Displacements in Flow Cells, With Application to Carbon Dioxide Sequestration in Brine Fields“. In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31296.

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In this paper experimental and computational modeling methods for studying viscous fingering phenomena occurring during underground CO2 sequestration were developed. In the experiment, the displacement of two immiscible fluids in a lattice-like flow cell was studied. The flow pattern during the displacement was analyzed, and the residual saturation of the displaced fluid was measured. Numerical simulations of the experimental flow cell were performed. The numerical simulation results are compared with the experimental data good agreement was observed.
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Tanaka, M., T. Ohta und Y. Hagiwara. „Motion of a Thrombus in Blood Flow Through a Stenosed Vessel“. In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37391.

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A direct numerical simulation has been conducted for a laminar flow in a constricted tube with an immiscible droplet in order to investigate the phenomena which an viscoelastic object such as a thrombus causes when it passes through a stenosed vessel. An immersed-boundary method is used for simulating the flow inside the constricted tube, while the PLIC-VOF algorithm is used for tracking the droplet interface. We have focused on a neutrally buoyant droplet of a fixed size. It is found that the droplet shape strongly depends on the capillary number, while the droplet velocity mainly depends on the viscosity ratio between two phases. The drag force (or fluid resistance) associated with the flow inside the tube is found to increase due to the presence of the droplet at low capillary numbers and at high viscosity ratios. The drag fluctuates when the droplet passes through the constricted area. This is triggered by a relatively large fluctuation in the pressure drag.
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Berichte der Organisationen zum Thema "Flow of immiscible fluids"

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Ottino, J. M. Mixing of immiscible fluids in chaotic flows and related issues. Office of Scientific and Technical Information (OSTI), März 1993. http://dx.doi.org/10.2172/6782764.

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Chen, G., S. P. Neuman und M. Taniguchi. An overview of instability and fingering during immiscible fluid flow in porous and fractured media. Office of Scientific and Technical Information (OSTI), April 1995. http://dx.doi.org/10.2172/93758.

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Ottino, J. M. Mixing of immiscible fluids in chaotic flows and related issues. Progress report, June 1, 1992--May 31, 1993. Office of Scientific and Technical Information (OSTI), März 1993. http://dx.doi.org/10.2172/10146070.

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Tao, Rongjia. Electro-Rheology Fluids and Liquid Fuel Flow. Fort Belvoir, VA: Defense Technical Information Center, Juni 1992. http://dx.doi.org/10.21236/ada252950.

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Tao, Rongjia, Narendra K. Jaggi und Robert N. Zitter. Electro-Rheology Fluids and Liquid Fuel Flow. Fort Belvoir, VA: Defense Technical Information Center, Juni 1991. http://dx.doi.org/10.21236/ada238600.

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Torczynski, J. R., T. J. O`Hern, D. R. Adkins, N. B. Jackson und K. A. Shollenberger. Advanced tomographic flow diagnostics for opaque multiphase fluids. Office of Scientific and Technical Information (OSTI), Mai 1997. http://dx.doi.org/10.2172/481578.

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Campbell, Bryan T., und Roger L. Davis. Quasi-2D Unsteady Flow Procedure for Real Fluids (PREPRINT). Fort Belvoir, VA: Defense Technical Information Center, Mai 2006. http://dx.doi.org/10.21236/ada450906.

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Kraynik, A., A. Geller und J. Glick. Gelled propellant flow: Boundary layer theory for power-law fluids in a converging planar channel. Office of Scientific and Technical Information (OSTI), Oktober 1989. http://dx.doi.org/10.2172/5647885.

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Kadioglu, Samet Y., Ray Berry und Richard Martineau. A Well-Posed Two Phase Flow Model and its Numerical Solutions for Reactor Thermal-Fluids Analysis. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1313939.

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Hickmott, Donald Degarmo. SIMULTANEOUS REAL-TIME MEASUREMENT OF COMPOSITION, FLOW, ATTENUATION, DENSITY, AND PIPE-WALL THICKNESS IN MULTIPHASE FLUIDS. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1569567.

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