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Artículos de revistas sobre el tema "Multiphase flow"

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Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 28 de julio de 2024

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1

Ronen, R., R. Gloukhovski y M. E. Suss. "Single-flow multiphase flow batteries: Experiments". Journal of Power Sources 540 (agosto de 2022): 231567. http://dx.doi.org/10.1016/j.jpowsour.2022.231567.

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2

Ronen, R., A. D. Gat, M. Z. Bazant y M. E. Suss. "Single-flow multiphase flow batteries: Theory". Electrochimica Acta 389 (septiembre de 2021): 138554. http://dx.doi.org/10.1016/j.electacta.2021.138554.

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3

Brill, James P. "Multiphase Flow in Wells". Journal of Petroleum Technology 39, n.º 01 (1 de enero de 1987): 15–21. http://dx.doi.org/10.2118/16242-pa.

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4

FUJII, Terushige. "Multiphase Flow in Space." JAPANESE JOURNAL OF MULTIPHASE FLOW 10, n.º 4 (1996): 351–55. http://dx.doi.org/10.3811/jjmf.10.351.

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5

KODAMA, Yoshiaki. "Ships and Multiphase Flow." JAPANESE JOURNAL OF MULTIPHASE FLOW 11, n.º 1 (1997): 19–22. http://dx.doi.org/10.3811/jjmf.11.19.

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6

Georgiadis, John G. "Multiphase Flow Quantitative Visualization". Applied Mechanics Reviews 47, n.º 6S (1 de junio de 1994): S315—S319. http://dx.doi.org/10.1115/1.3124433.

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Full-field quantitative visualization of multiphase flows requires the introduction of high resolution noninvasive methods. Two such methods are presented: Scanning Confocal Microscopy (SCM), and Magnetic Resonance Imaging (MRI). SCM has higher resolution, contrast, and depth discrimination than conventional light microscopy. A modern SCM system operating in reflection mode performs optical sectioning of 3D surfaces with submicron resolution at video rates, and this suggests its use in reconstructing evolving interfaces. MRI is a versatile tool for mapping the distribution of liquids (primarily water) in 3D space and for performing multicomponent velocity measurements. MRI is the only practical solution in systems that are strongly refracting or opaque to visible light. SCM is employed (for the first time) to image frost growing under ambient conditions, and MRI is used to visualize phase change and to measure local velocity in natural convection in water-saturated porous media. These problems reflect the research interests of the author but also serve to show the potential of the techniques in probing multiphase flows containing complex interfaces.

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7

Roco, M. C. "Multiphase flow: Summary paper". Powder Technology 88, n.º 3 (septiembre de 1996): 275–84. http://dx.doi.org/10.1016/s0032-5910(96)03131-2.

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8

Sætre, C., G. A. Johansen y S. A. Tjugum. "Tomographic multiphase flow measurement". Applied Radiation and Isotopes 70, n.º 7 (julio de 2012): 1080–84. http://dx.doi.org/10.1016/j.apradiso.2012.01.022.

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9

Balachandar, S. y John K. Eaton. "Turbulent Dispersed Multiphase Flow". Annual Review of Fluid Mechanics 42, n.º 1 (enero de 2010): 111–33. http://dx.doi.org/10.1146/annurev.fluid.010908.165243.

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10

Roach, G. J., M. J. Millen y T. S. Whitaker. "DUET MULTIPHASE FLOW METER". APPEA Journal 40, n.º 1 (2000): 492. http://dx.doi.org/10.1071/aj99029.

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CSIRO Minerals has developed a Multiphase Flow Meter (MFM) for measuring oil, water and gas flow rates in offshore topside and sub-sea oil production pipelines. In 1997 Kvaerner Oilfield Products (KOP) signed an exclusive licence agreement with CSIRO Minerals for production and further development of the dual energy gamma-ray transmission (DUET) MFM. This new technology has the potential to save the oil industry many millions of dollars in capital, operating and maintenance costs. Essentially, the MFM consists of two specialised gamma-ray transmission gauges, pressure and temperature sensors, which are mounted on a pipe spool carrying the full flow of the well stream, and processing electronics. Measurements of the intensities of transmitted gamma rays are made to infer the proportions of oil, water and gas, and flow velocities are determined from cross-correlation of gamma-ray signals.Prototype MFM's have completed several Australian and overseas trials, including an extended four-year trial (1994–1998) on Esso's West Kingfish platform in Bass Strait and Texaco's test loop facility in Humble, Texas. During these and other trials the MFM has determined water cut to accuracies of 2–4%, and liquid and gas flow to accuracies of 5–10%, up to a gas volume fraction (G VF) of 95%. Full production versions of the MFM are presently under construction by KOP, and the first installation is due to take place early in 2000 at Texaco's Captain oilfield in the North Sea. CSIRO Minerals is presently consulting with the Australian oil industry to assess interest in the development of a wet gas MFM, capable of operating at GVF's in excess of 95%

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11

Besnard, D. C. y F. H. Harlow. "Turbulence in multiphase flow". International Journal of Multiphase Flow 14, n.º 6 (noviembre de 1988): 679–99. http://dx.doi.org/10.1016/0301-9322(88)90068-7.

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12

HASEGAWA, Koji y Shimpei SAITO. "Visualization of Multiphase Flow". Journal of the Visualization Society of Japan 42, n.º 163 (2022): 2. http://dx.doi.org/10.3154/jvs.42.163_2.

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13

Lemonnier, H. "Multiphase instrumentation: The keystone of multidimensional multiphase flow modeling". Experimental Thermal and Fluid Science 15, n.º 3 (octubre de 1997): 154–62. http://dx.doi.org/10.1016/s0894-1777(97)00023-x.

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14

Meerakaviyad, Deepak, Tony Keville, Atma Prakash, Abdullah Sajid y Faik Hamad. "Recent progress in multiphase flow simulation through multiphase pumps". Heat Transfer 49, n.º 5 (25 de abril de 2020): 2849–67. http://dx.doi.org/10.1002/htj.21749.

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15

Aliseda, Alberto y Theodore J. Heindel. "X-Ray Flow Visualization in Multiphase Flows". Annual Review of Fluid Mechanics 53, n.º 1 (5 de enero de 2021): 543–67. http://dx.doi.org/10.1146/annurev-fluid-010719-060201.

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The use of X-ray flow visualization has brought a powerful new tool to the study of multiphase flows. Penetrating radiation can probe the spatial concentration of the different phases without the refraction, diffraction, or multiple scattering that usually produce image artifacts or reduce the signal-to-noise ratio below reliable values in optical visualization of multiphase flows; hence, X-ray visualization enables research into the three-dimensional (3D) structure of multiphase flows characterized by complex interfaces. With the commoditization of X-ray laboratory sources and wider access to synchrotron beam time for fluid mechanics, this novel imaging technique has shed light onto many multiphase flows of industrial and environmental interest under realistic 3D configurations and at realistic operating conditions (high Reynolds numbers and high volume fractions) that had defied study for decades. We present a broad survey of the most commonly studied multiphase flows (e.g., sprays, fluidized beds, bubble columns) in order to highlight the progress X-ray imaging has made in understanding the internal structure and multiphase coupling of these flows, and we discuss the potential of advanced tomography and time-resolved and particle tracking radiography for further study of multiphase flows.

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16

Chen, Tong, Xudong Liu, Biao Si, Yong Feng, Huifeng Zhang, Bing Jia y Shengzhang Wang. "Comparison between Single-Phase Flow Simulation and Multiphase Flow Simulation of Patient-Specific Total Cavopulmonary Connection Structures Assisted by a Rotationally Symmetric Blood Pump". Symmetry 13, n.º 5 (20 de mayo de 2021): 912. http://dx.doi.org/10.3390/sym13050912.

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To accurately assess the hemolysis risk of the ventricular assist device, this paper proposed a cell destruction model and the corresponding evaluation parameters based on multiphase flow. The single-phase flow and multiphase flow in two patient-specific total cavopulmonary connection structures assisted by a rotationally symmetric blood pump (pump-TCPC) were simulated. Then, single-phase and multiphase cell destruction models were used to evaluate the hemolysis risk. The results of both cell destruction models indicated that the hemolysis risk in the straight pump-TCPC model was lower than that in the curved pump-TCPC model. However, the average and maximum values of the multiphase flow blood damage index (mBDI) were smaller than those of the single-phase flow blood damage index (BDI), but the average and maximum values of the multiphase flow particle residence time (mPRT) were larger than those of the single-phase flow particle residence time (PRT). This study proved that the multiphase flow method can be used to simulate the mechanical behavior of red blood cells (RBCs) and white blood cells (WBCs) in a complex flow field and the multiphase flow cell destruction model had smaller estimates of the impact shear stress.

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17

Ekpotu, Wilson F., Joseph Akintola, Martins C. Obialor, Udom Philemon y Imo-Obong E. Utoh. "Multiphase Flow in Hydrogen Generation". Journal of Sustainable Development 17, n.º 1 (11 de diciembre de 2023): 82. http://dx.doi.org/10.5539/jsd.v17n1p82.

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This study examined the laminar-multiphase characteristics in hydrogen production processes by utilizing the simulation software, “COMSOL 5.3 multiphysics simulation software”. The study's objective enhanced the evaluation of the multiphase flow operations involved in hydrogen generation, and determined the key contributors to the multiphase flow in the production of hydrogen. The methodology of the study also involved the design and simulation of the multiphase flow operations involved in hydrogen production and showed the analysis of the flow properties, including pressure profile, velocity profile, concentration profile, and shear rate profile, thereby insights into the multiphase flow interactions. Additionally, the research results enabled an improved understanding of the multiphase flow interactions in hydrogen production and led to an improvement in the process operational conditions for the system. The inference of the study was based on the quantifiable results obtained from the simulation which provided a comprehensive analysis of the multiphase flow characteristics in hydrogen production. More importantly, the shear stress for water-hydrogen system and hydrogen were shown with the shear rate describing the gradient in velocity and the pressure profile, shear rate profile, and velocity profile were calculated for a 2D profile versus the arc length for each of these variables. Thereafter, the results of this research simulation demonstrated that high velocity profile for hydrogen flow was observed within the reactor; with the highest velocity observed in the reactor within the length of (0.5 – 6.5)m, hence indicating optimum length of the water-split reactor for maximum velocity flow. The results further indicated that the profile of water-hydrogen and hydrogen pressure becomes uniform at a distance of 1mm from the entrance and the maximum pressure flow for water-hydrogen and hydrogen fluids pressure are 17.8Pa and 238.27Pa which shows a sufficiently higher pressure of hydrogen.

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18

Kolev, Nikolay Ivanov. "ICONE15-10031 HOW SPACER GRIDS INFLUENCE MULTIPHASE FLOW PROCESSES?" Proceedings of the International Conference on Nuclear Engineering (ICONE) 2007.15 (2007): _ICONE1510. http://dx.doi.org/10.1299/jsmeicone.2007.15._icone1510_12.

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19

Ode, Kosuke, Toshihiro Ohmae, Kenji Yoshida y Isao Kataoka. "STUDY OF FLOW STRUCTURE IN THE AERATION TANK INDUCED BY TWO PHASE JET FLOW(Multiphase Flow)". Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2005 (2005): 229–34. http://dx.doi.org/10.1299/jsmeicjwsf.2005.229.

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20

Nakamura, Hirokazu y Toshihiko Shakouchi. "Flow and Heat Transfer Characteristics of High Temperature Gas-Particle Air Jet Flow(Multiphase Flow 2)". Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2005 (2005): 319–24. http://dx.doi.org/10.1299/jsmeicjwsf.2005.319.

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21

Ivanov, E. A., A. S. Klyuyev, A. A. Zharkovskii y I. O. Borshchev. "Numerical Simulation of Multiphase Flow Structures in Openfoam Software Package". E3S Web of Conferences 320 (2021): 04016. http://dx.doi.org/10.1051/e3sconf/202132004016.

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Numerical simulation of various structures of multiphase flow in the pipe was performed using the OpenFOAM software package. A visual comparison of multiphase flow design structures for separated stratified-wave, plug and annular flow modes with experimental data is presented. For multiphase flow modelling the solver compressibleInterFoam was used. From the results of numerical modelling, it follows that the OpenFOAM software package allows correct prediction of multiphase flow modes in the pipe depending on Reynolds numbers for gas and liquid phases of the flow.

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22

Tromp, Rutger R. y Lucas M. C. Cerioni. "Multiphase Flow Regime Characterization and Liquid Flow Measurement Using Low-Field Magnetic Resonance Imaging". Molecules 26, n.º 11 (2 de junio de 2021): 3349. http://dx.doi.org/10.3390/molecules26113349.

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Multiphase flow metering with operationally robust, low-cost real-time systems that provide accuracy across a broad range of produced volumes and fluid properties, is a requirement across a range of process industries, particularly those concerning petroleum. Especially the wide variety of multiphase flow profiles that can be encountered in the field provides challenges in terms of metering accuracy. Recently, low-field magnetic resonance (MR) measurement technology has been introduced as a feasible solution for the petroleum industry. In this work, we study two phase air-water horizontal flows using MR technology. We show that low-field MR technology applied to multiphase flow has the capability to measure the instantaneous liquid holdup and liquid flow velocity using a constant gradient low flip angle CPMG (LFA-CPMG) pulse sequence. LFA-CPMG allows representative sampling of the correlations between liquid holdup and liquid flow velocity, which allows multiphase flow profiles to be characterized. Flow measurements based on this method allow liquid flow rate determination with an accuracy that is independent of the multiphase flow profile observed in horizontal pipe flow for a wide dynamic range in terms of the average gas and liquid flow rates.

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23

Li, Huichuang, Wenwu Zhang, Liwei Hu, Baoshan Zhu y Fujun Wang. "Studies on Flow Characteristics of Gas–Liquid Multiphase Pumps Applied in Petroleum Transportation Engineering—A Review". Energies 16, n.º 17 (29 de agosto de 2023): 6292. http://dx.doi.org/10.3390/en16176292.

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Flow and phase separation in gas–liquid multiphase pumps is easy to occur, which deteriorates their performance and mixed transportability. Many research achievements have been made in the experiment, CFD simulation and performance improvement of multiphase pumps. However, there are many challenges for the test technology, accurate numerical model development and gas–liquid flow control. This paper is mainly aimed at critically reviewing various technologies for experimental observation, flow calculation and analysis, and the optimization design of gas–liquid multiphase pumps. In this regard, the experimental results including the energy performance, flow pattern and bubble movement in the multiphase pump are presented in detail. Discussions on the turbulence model, multiphase flow model and bubble balance model are carried out for the flow prediction in such pumps. Various numerical results are presented, including energy performance, bubble distribution, vorticity, phase interaction and pressure fluctuation. Moreover, the flow control and optimization strategy are briefly introduced. Having carried out an extensive literature review of flow characteristics in multiphase pumps, the deficiencies of relevant fields and suggestions for future research direction are given.

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24

Wulff, Wolfgang. "COMPUTATIONAL METHODS FOR MULTIPHASE FLOW". Multiphase Science and Technology 5, n.º 1-4 (1990): 85–238. http://dx.doi.org/10.1615/multscientechn.v5.i1-4.30.

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25

BAN, Takahiko, Ryuta X. SUZUKI y Yuichiro NAGATSU. "Multiphase Flow of Active Fluid". JAPANESE JOURNAL OF MULTIPHASE FLOW 36, n.º 3 (15 de septiembre de 2022): 336–43. http://dx.doi.org/10.3811/jjmf.2022.t012.

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26

Kawahara, Akimaro. "PREFACE: EXPERIMENTAL MULTIPHASE FLOW DYNAMICS". Multiphase Science and Technology 33, n.º 3 (2021): v. http://dx.doi.org/10.1615/multscientechn.2021040585.

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27

Kawahara, Akimaro. "PREFACE: EXPERIMENTAL MULTIPHASE FLOW DYNAMICS". Multiphase Science and Technology 33, n.º 4 (2021): v. http://dx.doi.org/10.1615/multscientechn.v33.i4.10.

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28

Brill, James P. "Modeling Multiphase Flow in Pipes". Way Ahead 06, n.º 02 (1 de junio de 2010): 16–17. http://dx.doi.org/10.2118/0210-016-twa.

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29

Denney, Dennis. "Flow Assurance in Multiphase Environments". Journal of Petroleum Technology 50, n.º 03 (1 de marzo de 1998): 81–83. http://dx.doi.org/10.2118/0398-0081-jpt.

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30

IWAGAKI, Yuichi. "Multiphase Flow in Civil Engineering". JAPANESE JOURNAL OF MULTIPHASE FLOW 2, n.º 1 (1988): 2–14. http://dx.doi.org/10.3811/jjmf.2.2.

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31

MISHIMA, Kaichiro. "Multiphase Flow and Nuclear Safety". JAPANESE JOURNAL OF MULTIPHASE FLOW 31, n.º 2 (2017): 109–16. http://dx.doi.org/10.3811/jjmf.31.109.

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32

OZAWA, Mamoru. "Nonlinear Dynamics in Multiphase Flow". JAPANESE JOURNAL OF MULTIPHASE FLOW 8, n.º 4 (1994): 277–79. http://dx.doi.org/10.3811/jjmf.8.277.

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33

Okuzono, Tohru, Hirohisa Shibuya y Masao Doi. "Hierarchical model in multiphase flow". Physical Review E 61, n.º 4 (1 de abril de 2000): 4100–4106. http://dx.doi.org/10.1103/physreve.61.4100.

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34

Plesset, Milton S. "Transient Phenomena in Multiphase Flow". Nuclear Technology 92, n.º 1 (octubre de 1990): 150. http://dx.doi.org/10.13182/nt90-a34495.

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35

kataoka, Isao y Kenji Yoshida. "Functional and Intelligent Multiphase Flow". Proceedings of the Fluids engineering conference 2004 (2004): 200. http://dx.doi.org/10.1299/jsmefed.2004.200.

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36

Nydal, Ole Jorgen. "Dynamic Models in Multiphase Flow". Energy & Fuels 26, n.º 7 (24 de mayo de 2012): 4117–23. http://dx.doi.org/10.1021/ef300282c.

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37

Whalley, P. B. "Advances in multiphase flow 1995". Chemical Engineering Journal and the Biochemical Engineering Journal 64, n.º 3 (diciembre de 1996): 365. http://dx.doi.org/10.1016/s0923-0467(97)80008-5.

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38

Ramshaw, John D. "Brownian Motion in Multiphase Flow". Theoretical and Computational Fluid Dynamics 14, n.º 3 (1 de septiembre de 2000): 195–202. http://dx.doi.org/10.1007/s001620050136.

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39

Adler, P. M. y H. Brenner. "Multiphase Flow in Porous Media". Annual Review of Fluid Mechanics 20, n.º 1 (enero de 1988): 35–59. http://dx.doi.org/10.1146/annurev.fl.20.010188.000343.

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40

Sprunt, Eve S., Tony B. Mercer y Nizar F. Djabbarah. "Streaming potential from multiphase flow". GEOPHYSICS 59, n.º 5 (mayo de 1994): 707–11. http://dx.doi.org/10.1190/1.1443628.

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In trying to understand the affect of electrokinetics on the spontaneous potential (SP) log, the focus has generally been on the solid‐brine streaming potential. Within the accuracy of the measurements, the streaming‐potential coupling coefficient is shown to be independent of the permeability of the rock. The solid‐brine streaming potential is of much smaller magnitude than the electrostatic potentials from gas‐liquid and liquid‐liquid flow. Air bubbles were found to increase the streaming potential coupling coefficient by more than two orders of magnitude over the value for single‐phase brine flow. Thus, two‐phase gas‐liquid flow is more likely to have a significant impact on the SP log than is single phase liquid flow. Two‐phase oil‐brine flow may also produce a larger electrokinetic potential than single‐phase flow. The magnitude of the electrokinetic potential caused by oil‐brine flow will depend on the composition of the oil and the brine. Trace materials can have a major impact on the electrokinetic potential of hydrocarbons. In a system with multiphase flow, the solid‐liquid interaction is probably the smallest component of the electrokinetic potential.

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41

Wang, Wei, Panagiota Angeli, Yueshe Wang y Bin Hu. "Multiphase Flow and Transfer Phenomenon". International Journal of Chemical Engineering 2017 (2017): 1–2. http://dx.doi.org/10.1155/2017/5083086.

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42

Higdon, J. J. L. "Multiphase flow in porous media". Journal of Fluid Mechanics 730 (30 de julio de 2013): 1–4. http://dx.doi.org/10.1017/jfm.2013.296.

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AbstractMultiphase flows in porous media represent fluid dynamics problems of great complexity involving a wide range of physical phenomena. These flows have attracted the attention of an impressive group of renowned researchers and have spawned a number of classic problems in fluid dynamics. These multiphase flows are perhaps best known for their importance in oil recovery from petroleum reservoirs, but they also find application in novel areas such as hydrofracturing for natural gas recovery. In a recent article, Zinchenko & Davis (J. Fluid Mech. 2013, vol. 725, pp. 611–663) present computational simulations that break new ground in the study of emulsions flowing through porous media. These simulations provide sufficient scale to capture the disordered motion and complex break-up patterns of individual droplets while providing sufficient statistical samples for estimating meaningful macroscopic properties of technical interest.

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43

Seguin, Brian y Noel J. Walkington. "Multi-component Multiphase Porous Flow". Archive for Rational Mechanics and Analysis 235, n.º 3 (28 de noviembre de 2019): 2171–96. http://dx.doi.org/10.1007/s00205-019-01473-7.

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44

Hetsroni, G. "Transient Phenomena in Multiphase Flow". International Journal of Multiphase Flow 15, n.º 2 (abril de 1989): I. http://dx.doi.org/10.1016/0301-9322(89)90078-5.

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45

Mahgerefteh, Haroun, Garfield Denton y Yuri Rykov. "A hybrid multiphase flow model". AIChE Journal 54, n.º 9 (septiembre de 2008): 2261–68. http://dx.doi.org/10.1002/aic.11569.

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46

ZHOU, Qulan, Na LI, Shuai ZHAO, Tongmo XU, Shien HUI y Yi ZHANG. "B306 EXPERIMENTAL INVESTIGATION OF FLOW REGIMES IDENTIFICATION AND TRANSITION IN DOUBLE-CONTAT-FLOW ABSORBER(Multiphase Flow-2)". Proceedings of the International Conference on Power Engineering (ICOPE) 2009.3 (2009): _3–91_—_3–95_. http://dx.doi.org/10.1299/jsmeicope.2009.3._3-91_.

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47

Nazeer, Mubbashar, Farooq Hussain, Laiba Shabbir, Adila Saleem, M. Ijaz Khan, M. Y. Malik, Tian-Chuan Sun y A. Hussain. "A comparative study of MHD fluid-particle suspension induced by metachronal wave under the effects of lubricated walls". International Journal of Modern Physics B 35, n.º 20 (31 de julio de 2021): 2150204. http://dx.doi.org/10.1142/s0217979221502040.

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In this paper, the two-phase flow of non-Newtonian fluid is investigated. The main source of the flow is metachronal waves which are caused by the back and forth motion of cilia attached to the opposite walls of the channel. Magnetohydrodynamics (MHD) of Casson fluid experience the effects of transverse magnetic fields incorporated with the slippery walls of the channel. Thermal effects are examined by taking Roseland’s approximation and application of thermal radiation into account. The heat transfer through the multiphase flow of non-Newtonian fluid is further, compared with Newtonian bi-phase flow. Since the main objective of the current study is to analyze heat transfer through an MHD multiphase flow of Casson fluid. The two-phase heated flow of non-Newtonian fluid is driven by cilia motion results in nonlinear and coupled differential equations which are transformed and subsequently, integrated subject to slip boundary conditions. A closed-form solution is eventually obtained form that effectively describes the flow dynamics of multiphase flow. A comprehensive parametric study is carried out which highlights the significant contribution of pertinent parameters of the heat transfer of Casson multiphase flow. It is inferred that lubricated walls and magnetic fields hamper the movement of multiphase flow. It is noted that a sufficient amount of additional thermal energy moves into the system, due to the Eckert number and Prandtl number. While thermal radiation acts differently by expunging the heat transfer. Moreover, Casson multiphase flow is a more suitable source of heat transfer than Newtonian multiphase flow.

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48

Apte, Mandar S., Ahmadbazlee Matzain, Hong-Quan Zhang, Michael Volk, James P. Brill y Jeff L. Creek. "Investigation of Paraffin Deposition During Multiphase Flow in Pipelines and Wellbores—Part 2: Modeling". Journal of Energy Resources Technology 123, n.º 2 (15 de enero de 2001): 150–57. http://dx.doi.org/10.1115/1.1369359.

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A Joint Industry Project to investigate paraffin deposition in multiphase flowlines and wellbores was initiated at The University of Tulsa in May 1995. As part of this JIP, a computer program, based on the molecular diffusion theory, was developed for prediction of wax deposition during multiphase flow in pipelines and wellbores. The program is modular in structure and assumes a steady-state, one-dimensional flow, energy conservation principle. This paper will describe the simulator developed for predicting paraffin deposition during multiphase flow that includes coupling of multiphase fluid flow, solid-liquid-vapor thermodynamics, multiphase heat transfer, and flow pattern-dependent paraffin deposition. Predictions of the simulator are compared and tuned to the experimental data by adjusting the film heat transfer and diffusion coefficients and the thermal conductivity of the wax deposit.

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Chen, Xianghui, Brenton S. McLaury y Siamack A. Shirazi. "A Comprehensive Procedure to Estimate Erosion in Elbows for Gas/Liquid/Sand Multiphase Flow". Journal of Energy Resources Technology 128, n.º 1 (15 de agosto de 2005): 70–78. http://dx.doi.org/10.1115/1.2131885.

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A comprehensive procedure that combines mechanistic analysis and numerical simulation approaches is proposed to estimate the erosion in elbows for gas/liquid/sand particle multiphase flow systems. The erosion problem in multiphase flow is approximately transferred to one in single-phase flow by introducing the effective sand mass ratio and a representative single-phase flow to which a single-phase computational-fluid-dynamics-based erosion-prediction model can be applied. Erosion in elbows is calculated for various multiphase flow patterns and compared to experimental data in the literature. Reasonable agreement between the simulations and the literature data is observed. The proposed approach is an effective tool to estimate the erosion in multiphase flow.

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Qi, Dan, Honglan Zou, Yunhong Ding, Wei Luo y Junzheng Yang. "Engineering Simulation Tests on Multiphase Flow in Middle- and High-Yield Slanted Well Bores". Energies 11, n.º 10 (28 de septiembre de 2018): 2591. http://dx.doi.org/10.3390/en11102591.

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Previous multiphase pipe flow tests have mainly been conducted in horizontal and vertical pipes, with few tests conducted on multiphase pipe flow under different inclined angles. In this study, in light of mid–high yield and highly deviated wells in the Middle East and on the basis of existent multiphase flow pressure research on well bores, multiphase pipe flow tests were conducted under different inclined angles, liquid rates, and gas rates. A pressure prediction model based on Mukherjee model, but with new coefficients and higher accuracy for well bores in the study block, was obtained. It was verified that the newly built pressure drawdown prediction model tallies better with experimental data, with an error of only 11.3%. The effect of inclination, output, and gas rate on the flow pattern, liquid holdup, and friction in the course of multiphase flow were analyzed comprehensively, and six kinds of classical flow regime maps were verified with this model. The results showed that for annular and slug flow, the Mukherjee flow pattern map had a higher accuracy of 100% and 80–100%, respectively. For transition flow, Duns and Ros flow pattern map had a higher accuracy of 46–66%.

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