Relevant bibliographies by topics / Multi phase flow measurements

Academic literature on the topic 'Multi phase flow measurements'

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Published: 10 March 2023

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Journal articles on the topic "Multi phase flow measurements"

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Williams, R. A., C. G. Xie, F. J. Dickin, S. J. R. Simons, and M. S. Beck. "Multi-phase flow measurements in powder processing." Powder Technology 66, no. 3 (June 1991): 203–24. http://dx.doi.org/10.1016/0032-5910(91)80033-f.

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Kim, Seok, Dongjin Euh, Bokdeuk Kim, Wonman Park, Byongjo Yun, Chul-Hwa Song, and Kyungdoo Kim. "ICONE19-44025 MULTI-DIMENSIONAL TWO-PHASE FLOW IN A LARGE SLAB GEOMETRY USING IMPEDANCE MEASUREMENTS." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2011.19 (2011): _ICONE1944. http://dx.doi.org/10.1299/jsmeicone.2011.19._icone1944_15.

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Nowakowski, Jacek, Robert Banasiak, Radosław Wajman, and Dominik Sankowski. "MULTI PHASE FLOW MEASUREMENTS WITH THE APPLICATION OF ECT/ERT DECART MULTIMODALITY TOMOGRAPH." Informatics Control Measurement in Economy and Environment Protection 7, no. 1 (March 30, 2017): 46–49. http://dx.doi.org/10.5604/01.3001.0010.4581.

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The multi-phase flow measurements are very important tasks in many areas of industrial processes applications. One of them is undersea exploration of oil in the petroleum industry. The submitted paper presents application of DECART tomograph designed and built in Lodz University of Technology - together with combined measurements of signals acquired from gamma ray measurement system. Use of all measuring modalities allowed for performing measurements of a flow composed of sea water, oil and gas. The paper presents theoretical principles applied to design multimodality tomograph and results of experiments performed in the University of Bergen. Measurement confirmed that multi-modality approach allows giving fast and reliable on-line results of measurements of composition of multi-phase flow. Applied algorithms allowed to speed up on-line measurements and presenting results in a form required in industrial applications. The derived conclusions can be used as guidelines for preparation of industrial applicable construction of tomograph.
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KANAI, Taizo, Masahiro FURUYA, Takahiro ARAI, Kenetsu SHIRAKAWA, Yoshihisa NISHI, and Nobuyuki UEDA. "ICONE19-44020 Multi-dimensional Two-Phase Flow Measurements in a Large-Diameter Pipe Using Wire-Mesh Sensor." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2011.19 (2011): _ICONE1944. http://dx.doi.org/10.1299/jsmeicone.2011.19._icone1944_12.

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Babu, C. Rajesh. "CFD Analysis Of Multi-Phase Flow And Its Measurements." IOSR Journal of Mechanical and Civil Engineering 9, no. 4 (2013): 30–37. http://dx.doi.org/10.9790/1684-0943037.

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Wang, Yue Ming, Ling Fu Kong, and Ying Wei Li. "The Study of Electrode Size on Sensitive Field Effect of Electromagnetic Flow Meter in the Measuring Fluids Containing Non-Conductive Body." Advanced Materials Research 756-759 (September 2013): 551–55. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.551.

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Electromagnetic flow meters are widely used in two-phase or multi-phase flow measurements in recent years. In this paper, simulation model is established to study the flow meter response characteristics which exist a non-conductive body (oil bubble) in the fluid by use finite element software ANSYS. We analyze different electrode size impact on the response characteristics of electromagnetic flow meter in the measurement of two-phase or multi-phase flow which includes non-conductive material in the fluid, which provides reference for design of the sensor electrode sizes, and provides a theoretical basis for error analysis measuring two-phase or multi-phase flow under different electrode sizes of electromagnetic flowmeter.
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Hansen, Lærke Skov, Simon Pedersen, and Petar Durdevic. "Multi-Phase Flow Metering in Offshore Oil and Gas Transportation Pipelines: Trends and Perspectives." Sensors 19, no. 9 (May 11, 2019): 2184. http://dx.doi.org/10.3390/s19092184.

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Multi-phase flow meters are of huge importance to the offshore oil and gas industry. Unreliable measurements can lead to many disadvantages and even wrong decision-making. It is especially important for mature reservoirs as the gas volume fraction and water cut is increasing during the lifetime of a well. Hence, it is essential to accurately monitor the multi-phase flow of oil, water and gas inside the transportation pipelines. The objective of this review paper is to present the current trends and technologies within multi-phase flow measurements and to introduce the most promising methods based on parameters such as accuracy, footprint, safety, maintenance and calibration. Typical meters, such as tomography, gamma densitometry and virtual flow meters are described and compared based on their performance with respect to multi-phase flow measurements. Both experimental prototypes and commercial solutions are presented and evaluated. For a non-intrusive, non-invasive and inexpensive meter solution, this review paper predicts a progress for virtual flow meters in the near future. The application of multi-phase flows meters are expected to further expand in the future as fields are maturing, thus, efficient utilization of existing fields are in focus, to decide if a field is still financially profitable.
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King, Nicholas W. "Multi-Phase Flow Measurement at NEL." Measurement and Control 21, no. 8 (October 1988): 237–39. http://dx.doi.org/10.1177/002029408802100802.

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Yeung, Hoi. "Editorial to: Multi-Phase Flow Measurement." Flow Measurement and Instrumentation 14, no. 4-5 (August 2003): 137. http://dx.doi.org/10.1016/s0955-5986(03)00043-8.

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Shi, Jun-Feng, Feng Deng, Li-Zhi Xiao, Hua-Bing Liu, Feng-Qin Ma, Meng-Ying Wang, Rui-Dong Zhao, Shi-Wen Chen, Jian-Jun Zhang, and Chun-Ming Xiong. "A proposed NMR solution for multi-phase flow fluid detection." Petroleum Science 16, no. 5 (September 25, 2019): 1148–58. http://dx.doi.org/10.1007/s12182-019-00367-3.

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Abstract In the petroleum industry, detection of multi-phase fluid flow is very important in both surface and down-hole measurements. Accurate measurement of high rate of water or gas multi-phase flow has always been an academic and industrial focus. NMR is an efficient and accurate technique for the detection of fluids; it is widely used in the determination of fluid compositions and properties. This paper is aimed to quantitatively detect multi-phase flow in oil and gas wells and pipelines and to propose an innovative method for online nuclear magnetic resonance (NMR) detection. The online NMR data acquisition, processing and interpretation methods are proposed to fill the blank of traditional methods. A full-bore straight tube design without pressure drop, a Halbach magnet structure design with zero magnetic leakage outside the probe, a separate antenna structure design without flowing effects on NMR measurement and automatic control technology will achieve unattended operation. Through the innovation of this work, the application of NMR for the real-time and quantitative detection of multi-phase flow in oil and gas wells and pipelines can be implemented.
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Dissertations / Theses on the topic "Multi phase flow measurements"

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Teague, Gavin. "Mass flow measurement of multi-phase mixtures by means of tomographic techniques." Doctoral thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/5097.

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This thesis investigates the use of a dual-plane impedance tomography system to calculate the individual mass flow rates of the components in an air-gravel-seawater mixture. The long-term goal of this research is to develop a multi-phase flowmeter for the on-line monitoring of an airlift used in an offshore mining application. This requires the measurement of both the individual component volume fractions and their velocities. Tomography provides a convenient non-intrusive technique to obtain this information. Capacitance tomography is used to reconstruct the dielectric distribution of the material within a pipeline. It is based on the concept that the capacitance of a pair of electrodes depends on the dielectric distribution of the material between the electrodes. By mounting a number of electrodes around the periphery of the pipeline, and measuring the capacitances of the different electrode combinations, it is possible to reconstruct the distribution of the phases within the pipeline, provided the phases have different dielectric constants. Resistance tomography is used to reconstruct the resistivity distribution within the cross-section of the pipeline and operates in a similar way to capacitance tomography. Impedance tomography can be described as a dual-modal approach since both the capacitance and conductance of the different electrode combinations are measured to reconstruct the omplex impedance of the material distribution. Previous research has shown that impedance tomography can be used to reconstruct a three-phase air-gravelwater mixture [3,4]. In addition, it has been shown that neural networks can be used to perform this reconstruction task [3,4]. In particular, a single-layer feed-forward neural network with a 1-of-C output encoding can be trained to perform a three-phase image reconstruction. Further, a double-layer feed-forward neural network can be trained to predict the volume fractions of the three phases within the flow directly, based on the capacitance and conductance readings obtained from the data acquisition system. However, these tests were only for static configurations. This thesis will readdress this problem from the dynamic viewpoint. In addition, the individual component velocities will be calculated using the cross-correlation of the volume fraction predictions from two impedance tomography systems spaced a certain distance apart.
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Hastings, Robert. "Use of multi-scale phase-based methods to determine optical flow in dynamic scene analysis." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2003. https://ro.ecu.edu.au/theses/1487.

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Estimates of optical flow in images can be made by applying a complex periodic transform to the images and tracking the movement of points of constant phase in the complex output. This approach however suffers from the problem that filters of large width give information only about broad scale image features, whilst those of small spatial extent (high resolution) cannot track fast motion, which causes a feature to move a distance that is large compared to the filter-size. A method is presented in which the flow is measured at different scales, using a series of complex filters of decreasing width. The largest filter is used to give a large scale flow estimate at each image point. Estimates at smaller scales are then carried out by using the previous result as an a priori estimate. Rather than comparing the same region in different images in order to estimate flow, the regions to be compared are displaced from one another by an amount given by the most recent previous flow estimate. This results in an estimate of flow relative to the earlier estimate. The two estimates are then added together to give a new estimate of the absolute displacement. The process is repeated at successively smaller scales. The method can therefore detect small local velocity variations superimposed on the broad scale flow, even where the magnitude of the absolute displacement is larger than the scope of the smaller filters. Without the assistance of the earlier estimates in ‘tuning' the smaller filters in this manner, a smaller filter could fail to capture these velocity variations, because the absolute displacement carry the feature out of range of-the filter during successive frames. The output of the method is a series of scale-dependent flow fields corresponding to different scales, reflecting the fact that motion in the real world is a scale-dependent quantity. Application of the method to some 1 dimensional test images gives good results, with realistic flow values that could be used as an aid to segmentation. Some synthetic 2-dimentional images containing only a small number of well defined features aIso yield good-results but the method performs poorly on a random-dot stereogram and on a real-world test image pair selected from the Hamburg Taxi sequence.
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Al-Yarubi, Qahtan. "Phase flow rate measurements of annular flows." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/9104/.

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In the international oil and gas industry multiphase annular flow in pipelines and wells is extremely important, but not well understood. This thesis reports the development of an efficient and cheap method for measuring the phase flow rates in two phase annular and annular mist flow, in which the liquid phase is electrically conducting, using ultrasonic and conductance techniques. The method measures changes in the conductance of the liquid film formed during annular flow and uses these to calculate the volumetric and mass flow rates of the liquid film. The gas velocity in the core of the annular flow is measured using an ultrasonic technique. Combined with an entrainment model and the liquid film measurements described above, the ultrasonic technique enables the volumetric flow rate of the gas in the core and the volumetric and mass flow rates of entrained liquid droplets to be measured. This study was based on experimental work and the use of modelling techniques. The practical investigation comprised a series of experiments conducted on a purpose built flow loop in which the test section was a Perspex pipe of 50mm ID. The experimental work was limited to two-phase air-water flow. The flow loop was specifically designed to accommodate the different instruments and subsystems designed in this investigation including bespoke flow meters and a film extraction system. Most flow loop controls were automated using a MATLAB program. Reference measurement of the total water flow rate was made using a calibrated turbine flow meter and of the air flow rate using a calibrated rotameter. For the combined ultrasonic/conductance method investigated in this thesis, the velocity of the gas in the core was found using a novel Ultrasonic Flow Meter (USFM). The positioning and arrangement of the transducers have never been used previously. The flow velocity of the liquid film and the thickness of the film were measured using a novel Conductance Flow Meter (CFM). The CFM measured the liquid film thickness using novel wall conductance probes. By cross correlating the signals from a pair of such probes the film velocity was obtained. Good agreement of the experimental results obtained from the CFM and USFM with results published in the literature was found. Although not investigated experimentally in the work described in this thesis, annular flows encountered in the oil industry may contain a liquid phase comprising a mixture of oil and water. For such flows, the volume fractions of the oil and water can be measured using an automated bypass system developed during this project. The bypass system periodically extracts part of the liquid film, measures its density and then releases the sample back into the pipeline. The liquid phase volume fractions are determined from this density measurement which can be performed more than once per minute. An entrainment model was developed, which is required by the ultrasonic/conductance flow metering technique described in this thesis, in which the mass fraction of the liquid flowing as entrained droplets in the core can be determined from the liquid film thickness and velocity measurements. A mathematical model was also developed to describe the properties of the liquid film, such as liquid velocity profile within the film, and the model’s results were found to agree with the experimental results obtained during the project and also with previous work cited in the literature. The complexity of this latter model was reduced by making a number of simplifying assumptions, which are presented and discussed in the thesis, including the assumption that in annular flow there is a dynamic balance liquid entrainment and droplets being deposited back onto the film. The combination of the designed CFM and USFM with the bypass tube and the entrainment model offer the opportunity for a ‘wet gas’ flow meter to be developed to measure two and three phase annular flows at relatively low cost and with enhanced accuracy. Such a device would have the advantage that it would by substantially smaller than systems using separators and it could even be retrofitted onto off-shore platforms. The integration of the subsystems developed in this project into a single system capable of giving on-line measurements of annular flow would be a major benefit to the author’s sponsor, Petroleum Development of Oman.
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Dai, Yunfeng. "Integration of tomographic two-phase flow measurements." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421439.

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Carlson, Johan E. "Ultrasound measurements in moving multi-phase supsensions." Thesis, Luleå tekniska universitet, Signaler och system, 1998. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-24689.

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Lakkadi, Navneeth Sagar Reddy. "Flow Measurements in Turbulent Flow Fields with Magnetic Resonance Phase Velovity Mapping." Cleveland State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=csu1251412647.

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Lakkadi, Navneeth Sagar Reddy. "Flow measurements in turbulent flow fields with magnetic resonance phase velocity mapping." Cleveland, Ohio : Cleveland State University, 2009. http://etd.ohiolink.edu/view.cgi?acc_num=csu1251412647.

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Thesis (M.S.)--Cleveland State University, 2009.
Abstract. Title from PDF t.p. (viewed on Sept. 8, 2009). Includes bibliographical references (p. 129-135). Available online via the OhioLINK ETD Center and also available in print.
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Djatmiko, Wahju. "Well testing in multi-phase flow reservoirs." Thesis, Imperial College London, 1996. http://hdl.handle.net/10044/1/8128.

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Bunch, Thomas K. "Performance measurements of a flashing flow nozzle." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-03042009-041255/.

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Petersson, Sven. "Simulation of Phase Contrast MRI Measurements from Numerical Flow Data." Thesis, Linköping University, Department of Biomedical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-14871.

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Phase-contrast magnetic resonance imaging (PC-MRI) is a powerful tool for measuring blood flow and has a wide range of cardiovascular applications. Simulation of PC-MRI from numerical flow data would be useful for addressing the data quality of PC-MRI measurements and to study and understand different artifacts. It would also make it possible to optimize imaging parameters prior to the PC-MRI measurements and to evaluate different methods for measuring wall shear stress.

Based on previous studies a PC-MRI simulation tool was developed. An Eulerian-Lagrangian approach was used to solve the problem. Computational fluid dynamics (CFD) data calculated on a fix structured mesh (Eulerian point of view) were used as input. From the CFD data spin particle trajectories were computed. The magnetization of the spin particle is then evaluated as the particle travels along its trajectory (Lagrangian point of view).

The simulated PC-MRI data were evaluated by comparison with PC-MRI measurements on an in vitro phantom. Results indicate that the PC-MRI simulation tool functions well. However, further development is required to include some of the artifacts. Decreasing the computation time will make more accurate and powerful simulations possible. Several suggestions for improvements are presented in this report.

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Books on the topic "Multi phase flow measurements"

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W, King Nicholas, and National Engineering Laboratory (Great Britain), eds. Multi-phase flow in pipeline systems: Its transfer, measurement and handling. London: HMSO, 1990.

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Technology, Canada Centre for Mineral and Energy. New Deconvolution Method For Analysis of Probability Density Distribution Spectra Observed in Gamma-Ray Interrogation Measurements of Multi-Phase Flows. S.l: s.n, 1985.

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P, Burns A., ed. Multi-phase production. London: Elsevier Applied Science, 1991.

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International Conference on Multi-phase Production. (6th 1993 Cannes, France). 6th International Conference on Multi Phase Production. London: Mechanical Engineering Publications Ltd., 1993.

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Chang, H. C., ed. IUTAM Symposium on Nonlinear Waves in Multi-Phase Flow. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-017-1996-4.

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Kuo, Kenneth K. Fundamentals of turbulent and multi-phase combustion. Hoboken, N.J: Wiley, 2012.

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Ragini, Acharya, ed. Applications of turbulent and multi-phase combustion. Hoboken, N.J: Wiley, 2012.

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Vincent, Stéphane, Jean-Luc Estivalèzes, and Ruben Scardovelli. Small Scale Modeling and Simulation of Incompressible Turbulent Multi-Phase Flow. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09265-7.

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Verheggen, T. M. M., 1948-, ed. Numerical methods for the simulation of multi-phase and complex flow. Berlin: Springer-Verlag, 1992.

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National Seminar on Transfer Processes in Multi-Phase Systems (1987 Vārānasi, Uttar Pradesh, India). Transfer processes in multi-phase systems: Proceedings of the National Seminar on Transfer Processes in Multi-Phase Systems, January 30-31, 1987, Varanasi, India. Edited by Upadhyay S. N and Society of Chemical Engineer (Vārānasi, India). Varanasi: Society of Chemical Engineer, Dept. of Chemical Engineering & Technology, Institute of Technology, Banaras Hindu University, 1987.

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Book chapters on the topic "Multi phase flow measurements"

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Taylor, A. M. K. P. "Two Phase Flow Measurements." In Optical Diagnostics for Flow Processes, 205–28. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4899-1271-8_10.

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Kolev, Nikolay I. "Exergy of multi-phase multi-component systems." In Multiphase Flow Dynamics, 311–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/3-540-69833-7_7.

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Kolev, Nikolay Ivanov. "Exergy of Multi-phase Multi-component Systems." In Multiphase Flow Dynamics 1, 321–33. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15296-7_7.

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Kolev, Nikolay Ivanov. "Exergy of multi-phase multi-component systems." In Multiphase Flow Dynamics 1, 321–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20605-4_7.

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Kawarada, Hideo, and Hiroshi Suito. "Multi-phase Flow with Reaction." In Lecture Notes in Computational Science and Engineering, 39–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56288-4_4.

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Mayo, Stephen D., and Richard T. Lahey. "Three-Phase Flow Measurements Using a Hot-Film Anemometer." In Applied Optical Measurements, 233–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58496-1_15.

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Kolev, Nikolay Ivanov. "Introduction to turbulence of multi-phase flows." In Multiphase Flow Dynamics 4, 39–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20749-5_2.

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Kolev, Nikolay I. "Numerical solution methods for multi-phase flow problems." In Multiphase Flow Dynamics, 481–585. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/3-540-69833-7_12.

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Lhuillier, D. "The Macroscopic Modelling of Multi-Phase Mixtures." In Flow of Particles in Suspensions, 39–91. Vienna: Springer Vienna, 1996. http://dx.doi.org/10.1007/978-3-7091-2714-8_2.

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Kolev, Nikolay Ivanov. "Numerical Solution Methods for Multi-phase Flow Problems." In Multiphase Flow Dynamics 1, 499–605. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15296-7_12.

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Conference papers on the topic "Multi phase flow measurements"

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Yang, Y., and D. Telionis. "Design and testing of instrumentation for multi-phase flow sampling and local void fraction measurement." In MULTIPHASE FLOW 2013. Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/mpf130261.

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Stanley, K. N., and D. E. Nikitopoulos. "Phase Discrimination Techniques for Phase Doppler Measurements in Dispersed, Bubbly Flows." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0792.

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Abstract A combined Phase-Doppler Anemometry (PDA) and video imaging measurement technique for non-intrusive measurements in dispersed bubbly flows is presented. A one-component Phase-Doppler Velocimetry system has been employed to measure liquid seeding particle size and velocity as well as bubble size and velocity non-intrusively. Measurable flow quantities include: (1) mean velocities and RMS velocity fluctuations for bubbles and liquid; (2) local bubble diameter, and (3) local bubble passage frequency. Non-intrusive local measurement of seeding particle and bubble size is an advantage over techniques used previously (Laser-Doppler Velocimetry, Hot-Film Anemometry). Visual data collected simultaneously with the light-scattering measurements and analyzed with the aid of image processing are used to verify the trends portrayed by the light-scattering measurements. A multi-level phase discrimination technique based on velocity, diameter, and relative data rates between the carrier and dispersed phases is employed to minimize bias from bubble signals when measuring liquid phase data in dilute flows. An amplitude discrimination technique for the Phase-Doppler system is proposed for higher volume fraction flows. The proposed method enables local non-intrusive measurement of liquid phase velocity as well as local bubble size characteristics, velocity, and concentration.
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Gu, Junjie, Masahiro Kawaji, Tracey Smith-Pollard, and James Cotton. "Multi-Channel R134a Two-Phase Flow Measurement Technique for Automobile Air-Conditioning System." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45379.

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This paper presents an improved on-line measurement technique developed to study two-phase flow rate distributions of refrigerants in parallel flow channels of compact heat exchangers and evaporators used in automotive air-conditioning systems. A prototype test station containing a refrigerant flow loop and a multi-channel two-phase flow measuring system, was designed and constructed based on the stratification of two-phase flow in horizontal tubes with relatively large diameters. In this work, glass tubes of 1”, 1.5” and 2” diameter were tested. Upon entering the glass tube, a vapour-liquid refrigerant mixture would readily stratify and the mean velocities of vapour and liquid phases could be measured separately using a hot film anemometer and an ultrasonic flow meter, respectively. Scales taped onto the glass tubes were also used to determine the mean liquid levels, from which the flow area of each phase could be calculated. The product of the flow area, phase density and mean phase velocity would then yield the mass flow rate of each phase. Validation experiments have been performed with R-134a as the working fluid and a 3-channel evaporator test section, designed with three separate outlets and kept under an adiabatic condition. The sum of the flow rates in the glass tubes for each phase was compared with the vapour or liquid flow rate determined from the total mass flow rate measured at the evaporator inlet and a heat balance in the pre-heater section of the pump-driven refrigerant flow loop. Validation tests yielded satisfactory results for both vapor and liquid phases, indicating the soundness of the measurement system based on the stratification tubes as well as the use of an ultrasonic flow meter and hot-film anemometer probes for phase average velocity measurements. The present measurement system has been equipped with seven glass tubes and thus can be used to study liquid and vapor flow rate distributions in commercial compact heat exchangers and improve their performance in automobile air conditioning systems.
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Appel, Matthias, Justin Freeman, and Daniel Pusiol. "Robust Multi-Phase Flow Measurement Using Magnetic Resonance Technology." In SPE Middle East Oil and Gas Show and Conference. Society of Petroleum Engineers, 2011. http://dx.doi.org/10.2118/141465-ms.

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Pereboom, H., S. P. C. Belfroid, N. Gonzalez-Diez, and J. Reijtenbagh. "Response of Multiple Bend System to Multi Phase Flow." In ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/omae2021-62506.

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Abstract Multiphase flow can induce high amplitude vibrations in piping systems. Several experimental campaigns focused on the force spectrum on a single bend. To evaluate the evolution of the forces from bend to bend, experiments have been done on an air-water, one inch pipe system consisting of six bends at near-atmospheric conditions. In a first phase, all individual bends were clamped to measure the phase relation and correlation of the flow-induced forces on the subsequent bends. In a second phase, all clamps were removed to measure the free vibrations. In this paper which focusses on the phase 2 results, the vibration measurements were compared to the calculated vibrations. For the excitation forces and phase relations, the measured force spectra from phase 1 are used. Damping values are based on experimental results from phase 2. The results show a good match between modeled and measured vibrations levels. Including the measured correlation between forces at multiple bends, improves the modeled results for slug flow cases. It is possible to directly use extract damping values from the measured signals, however, robustness of the damping estimation needs to be improved. Using average damping values currently leads to the best match.
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Kawaguchi, Kyojiro, Masahiro Takekawa, Tetsuya Ohtani, and Hidehiko Wada. "Optimal Sensor Placement for Multi-Phase Flow Rate Estimation Using Pressure and Temperature Measurements." In SPE Digital Energy Conference. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/163727-ms.

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Shen, Xiuzhong, Kaichiro Mishima, and Hideo Nakamura. "Methodology of Local Instantaneous Interfacial Velocity Measurement in Multi-Dimensional Two-Phase Flow." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89052.

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Since the transport of momentum, heat and mass tightly links with local interfacial characteristics it is essential to know the local interfacial parameters in various two-phase flows. The interfacial velocity plays a determinant role in determining the other interfacial parameters such as the interfacial area concentration and so on. It is accordingly one of the most important parameters in analyzing two-phase flow. However, it also is one of the most difficult parameters to measure up to now. Based on the application of the interfacial measurement theorem to several four-sensor probes, the present study established a theoretical foundation of the measurement method for the local instantaneous interfacial velocity in multidimensional two-phase flow by using three independent four-sensor probes. Since we can find three independent four-sensor probes in a multi-sensor probe, which has more than four sensors, by sharing the sensors of the first four-sensor probe with the sensors of the others, a five- or six-sensor probe including at least one set of three four-sensor combinations was recommended to measure the local instantaneous interfacial velocity, interfacial area concentration and so on in multidimensional two-phase flow. A six-sensor probe was developed and employed in the practical measurement in an air-water multi-dimensional two-phase flow in a pool. The six-sensor probe measurements were checked against the gas flow rate measurement using a rotameter and a manometer. The comparing results were very satisfactory.
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Ching, Chan Y., Guanjun Wang, and Alfred R. Marshall. "A Multi-Phase Flow Research Facility to Study Oil-Water-Gas Flow Systems." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0761.

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Abstract A new flow loop has been constructed at Memorial University of Newfoundland (MUN) to investigate oil-water-gas flows. The facility will initially support the development of an electroquasistatic multiphase flow meter (MPFM) to measure the individual oil-water-gas flow rates of unprocessed oil well streams. The flow loop is a 65 m recirculating open circuit system, and is constructed of 3-inch diameter pipe. There are clear horizontal and vertical test sections for flow visualization. Instrumentation includes several pressure and temperature transducers, and flow meters on the gas and liquid lines to measure the individual gas and liquid flow rates. Electro-pneumatic control valves arc installed on the liquid and air lines to facilitate control of the flow conditions, and a wide range of flow regimes can be generated. Operational control of the loop is implemented through a fully integrated computer system, which also handles the data acquisition. Quantitative flow visualization techniques, in combination with hot-film anemometry measurements are being used to study and characterize the different flow regimes. A new way of presenting flow maps that incorporates the pipe diameter and loop pressure is discussed. Preliminary results indicate that hot-film anemometry is a viable technique to obtain local volume fraction, and convection velocities of the gas slugs/bubbles. A block matching correlation technique is being developed to identify the different flow regimes, and estimate the velocity vectors of the different phases using consecutive frames from flow visualization.
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Kondo, Koichi, Kenji Yoshida, Tadayoshi Matsumoto, Tomio Okawa, and Isao Kataoka. "Flow Patterns of Gas-Liquid Two-Phase Flow in Round Tube With Sudden Expansion." In 10th International Conference on Nuclear Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/icone10-22154.

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Experimental studies were made on the multi-dimensional behavior of upward gas-liquid two-phase flow through the vertical round tube with an axisymmetric sudden expansion, which is one of the typical multi-dimensional channel geometry. The aims of this study are to clarify the multi-dimensional behavior of bubbly or slug flow affected by sudden expansion channel geometry, and to accumulate the experimental data for two-phase flow analysis, which is applicable to predict with appropriate accuracy the multi-dimensional its behavior. The direct observation using high-speed video camera was performed and revealed the multi-dimensional dynamic flow behavior with bubbles and gas-slug affected by the sudden expansion part (20 mm-tube to 50 mm-tube). The characteristic phenomena were observed such as bubble break-up, deformation due to the strong shear of liquid flow, or liquid micro jet penetration through the gas-slug, and so on. From these results, the flow regime map and the flow patterns at the below and above of the sudden expansion part were classified in relation to the bubble diameter. Additionally, the measurement of the void fraction profiles in the tube cross sections of sudden expansion were conducted at the different axial positions. The void fraction was measured using a point-electrode resistivity probe. The void fraction measurements in this study showed in detail that how the two phase flow develops along the direction of the downstream of the sudden expansion. In just above the sudden expansion, the void fraction distribution appeared the wall peak or the core peak in void fraction in the upstream of the sudden expansion. In the downstream of the sudden expansion, the void fraction distribution changes from a saddle shape or power-low shape into finally the saddle shape as the bubbly flow develops along the downstream of the sudden expansion. These experimental data in the sudden expansion of a vertical upward bubbly flow would become benchmark with respect to the multi-dimensional behavior of the two-phase flow analysis.
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Leeungculsatien, T., and G. P. Lucas. "Continuous phase velocity profile measurement in multiphase flow using a non-invasive multi-electrode electromagnetic flow meter." In THE 7TH INTERNATIONAL SYMPOSIUM ON MEASUREMENT TECHNIQUES FOR MULTIPHASE FLOWS. AIP, 2012. http://dx.doi.org/10.1063/1.3694712.

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Reports on the topic "Multi phase flow measurements"

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Bell, Gary, David Abraham, Nathan Clifton, and Lamkin Kenneth. Wabash and Ohio River confluence hydraulic and sediment transport model investigation : a report for US Army Corps of Engineers, Louisville District. Engineer Research and Development Center (U.S.), March 2022. http://dx.doi.org/10.21079/11681/43441.

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Avulsions of the Wabash River in 2008 through 2011 at its confluence with the Ohio River resulted in significant shoaling in the Ohio River. This caused a re-alignment of the navigation channel and the need for frequent dredging. A two-dimensional numerical hydrodynamic model, Adaptive Hydraulics (AdH), was developed to simulate base (existing) conditions and then altered to simulate multiple alternative scenarios to address these sediment issues. The study was conducted in two phases, Phase 1 in 2013 – 2015 and Phase 2 in 2018 – 2020. Field data were collected and consisted of multi-beam bathymetric elevations, bed sediment samples, suspended sediment samples, and discharge and velocity measurements. The model hydrodynamic and sediment transport computations adequately replicated the water surface slope, flow splits, bed sediment gradations, and suspended sediment concentrations when compared with field data. Thus, it was shown to be dependable as a predictive tool. The alternative that produced the most desirable results included a combination of three level-crested emergent dikes on Wabash Island and four submerged dikes on the Illinois shore with a level crest from the bank to the tip of the dike. The selected alternative produced an improved sailing line while maintaining authorized channel depths.
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Liu, C. T. Multi-Scale Strain Measurements of a Multi-Phase Material. Fort Belvoir, VA: Defense Technical Information Center, August 2002. http://dx.doi.org/10.21236/ada405539.

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Hu, R., J. W. Thomas, and T. H. Fanning. Strategy for Multi-Scale Single-Phase Flow Coupling. Office of Scientific and Technical Information (OSTI), May 2013. http://dx.doi.org/10.2172/1079137.

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Kirouac, G. J., T. A. Trabold, P. F. Vassallo, W. E. Moore, and R. Kumar. Instrumentation development for multi-dimensional two-phase flow modeling. Office of Scientific and Technical Information (OSTI), June 1999. http://dx.doi.org/10.2172/353194.

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Altobelli, Stephen A., and Eiichi Fukushima. Two Phase Flow Measurements by Nuclear Magnetic Resonance (NMR). Office of Scientific and Technical Information (OSTI), August 2006. http://dx.doi.org/10.2172/907985.

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Hughes, R. G., W. E. Brigham, and L. M. Castanier. CT measurements of two-phase flow in fractured porous media. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/501525.

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Brigham, William E., Castanier Louis M., and Richard G. Hughes. CT Measurements of Two-Phase Flow in Fractured Porous Media. Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/9320.

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Lee, Taehun. Development of an Efficient Meso- scale Multi-phase Flow Solver in Nuclear Applications. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1246905.

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Trabold, T. A., W. E. Moore, and W. O. Morris. Hot-film anemometer measurements in adiabatic two-phase flow through a vertical duct. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/350943.

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Trangenstein, J. A. High-resolution numerical methods for compressible multi-phase flow in hierarchical porous media. Progress report. Office of Scientific and Technical Information (OSTI), March 1993. http://dx.doi.org/10.2172/10184442.

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