Academic literature on the topic 'H/D isotope separation'

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Journal articles on the topic "H/D isotope separation"

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Trequattrini, Francesco, Oriele Palumbo, Silvano Tosti, Alessia Santucci, and Annalisa Paolone. "Promising Isotope Effect in Pd77Ag23 for Hydrogen Separation." ChemEngineering 5, no. 3 (2021): 51. http://dx.doi.org/10.3390/chemengineering5030051.

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Pd–Ag alloys are largely used as hydrogen separation membranes and, as a consequence, the Pd–Ag–H system has been intensively studied. On the contrary, fewer information is available for the Pd–Ag–D system; thus, the aim of this work is to improve the knowledge of the isotope effect on the commercial Pd77Ag23 alloy, especially for temperature above 200 °C. In particular, deuterium absorption measurements are carried out in the Pd77Ag23 alloy in the temperature range between 79 and 400 °C and in the pressure range between 10−2 and 16 bar. In this exploited pressure (p) and composition (c) range
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Miljanic, Scepan, Aleksandar Maksic, and Zoran Lausevic. "Isotope effects in: a) Catalytic generation of hydrogen from sodium tetrahydridoborate and b) Oxidation of hydrogen in fuel cells." Chemical Industry and Chemical Engineering Quarterly 11, no. 3 (2005): 124–28. http://dx.doi.org/10.2298/ciceq0503124m.

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We have investigated deuterium/hydrogen (D/H) isotope effects a) during catalytic evolution of hydrogen gas from the water solution of sodium tetrahydridoborate (NaBH4), the sodium borohydride fueled hydrogen generator HGen-E, Fractal Carbon, with the carbon monolith supported platinum reactor was used; b) oxidation of hydrogen in a PEM-type fuel cell to produce electrical energy. We used the E-TEK membrane electrode assemblies with an active area of 4 cm2, assembled in a two fuel cell stack. Both processes are important as possible parts of an energy-hydrogen-energy cycle. Any transfer of ene
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Miljanić, Šćepan S., Aleksandar D. Maksić, Nebojša I. Potkonjak, and Milica P. Marčeta Kaninski. "Electrolytic D/H isotope separation efficiency and electrocatalytic activity of Mo–Pt intermetallic phases." Electrochemistry Communications 9, no. 9 (2007): 2179–84. http://dx.doi.org/10.1016/j.elecom.2007.05.017.

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Sarkar, S. K., A. K. Nayak, V. Parthasarathy, K. V. S. RamaRao, and J. P. Mittal. "Infrared multiphoton dissociation in focused laser beams: II. Application to T/D/H isotope separation." Infrared Physics 33, no. 6 (1992): 505–10. http://dx.doi.org/10.1016/0020-0891(92)90066-3.

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STOJIC, D., S. MILJANIC, T. GROZDIC, D. GOLOBOCANIN, S. SOVILI, and M. JAKSIC. "D/H isotope separation efficiency in water electrolysis. Improvement by in situ activation at different temperatures." International Journal of Hydrogen Energy 19, no. 7 (1994): 587–90. http://dx.doi.org/10.1016/0360-3199(94)90216-x.

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Fu, Jiashun, Hai-Dong Yu, Long Wu, Chenghui Zhang, Yong-Huan Yun, and Weimin Zhang. "Authentication of Geographical Origin in Hainan Partridge Tea (Mallotus obongifolius) by Stable Isotope and Targeted Metabolomics Combined with Chemometrics." Foods 10, no. 9 (2021): 2130. http://dx.doi.org/10.3390/foods10092130.

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Partridge tea (Mallotus oblongifolius (Miq.) Müll.Arg.) is a local characteristic tea in Hainan, the southernmost province of China, and the quality of partridge tea may be affected by the producing areas. In this study, stable isotope and targeted metabolomics combined chemometrics were used as potential tools for analyzing and identifying partridge tea from different origins. Elemental analysis—stable isotope ratio mass spectrometer and liquid chromatography-tandem mass spectrometrywas used to analyze the characteristics of C/N/O/H stable isotopes and 54 chemical components, including polyph
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Wardlaw, David M. "Reaction path Hamiltonian for the association reactions CH3 + H and CH3 + D." Canadian Journal of Chemistry 70, no. 7 (1992): 1897–904. http://dx.doi.org/10.1139/v92-237.

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Coupling coefficients and normal mode frequencies appearing in the reaction path Hamiltonian formulated by Miller, Handy, and Adams have been calculated for the title reactions as a function of distance along the reaction path. The calculation of the coupling coefficients requires the use of symmetry coordinates which are described herein. It is found that the carbon–hydrogen separation provides an excellent representation of the reaction path coordinate, being linearly related to it. The coupling coefficients for CH3 + H and CH3 + D are approximately the same in the region of variational tran
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Dorset, Douglas L., and Robert G. Snyder. "H-D Isotope and Chain-Length Dependence of Phase Separation in Quenched n-Alkane Binary Combinations in the Crystalline State." Macromolecules 28, no. 24 (1995): 8412–18. http://dx.doi.org/10.1021/ma00128a061.

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Hu, Sheng, Liangping Xiong, Jingwei Hou, Kuiping Weng, Yangming Luo, and Tongzai Yang. "The roles of metals and their oxide species in hydrophobic Pt–Ru catalysts for the interphase H/D isotope separation." International Journal of Hydrogen Energy 35, no. 19 (2010): 10118–26. http://dx.doi.org/10.1016/j.ijhydene.2010.08.009.

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Stojic, D. "Electrochemical H/D isotope separation efficiencies on Ti–Ni intermetallic phases and alloys in relation to their hydridic and catalytic properties." International Journal of Hydrogen Energy 25, no. 9 (2000): 819–23. http://dx.doi.org/10.1016/s0360-3199(99)00106-8.

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Dissertations / Theses on the topic "H/D isotope separation"

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Kanao, Eisuke. "Studies on π-interactions in liquid phase separations". Kyoto University, 2020. http://hdl.handle.net/2433/254521.

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Zhang, Linda [Verfasser], and Guido [Akademischer Betreuer] Schmitz. "Experimental investigation on hydrogen isotope separation in nanoporous materials / Linda Zhang ; Betreuer: Guido Schmitz." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/1222515466/34.

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Oh, Hyunchul [Verfasser], and Elias [Akademischer Betreuer] Klemm. "Nanoporous materials for hydrogen storage and H2/D2 isotope separation / Hyunchul Oh. Betreuer: Elias Klemm." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2014. http://d-nb.info/1053959869/34.

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Underwood, Sandra Jean. "Stable isotope (18 O/16 O and D/H) studies of cascade volcanic arc magmatism." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/underwood/UnderwoodS0509.pdf.

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An, Yun [Verfasser], Thomas [Gutachter] Heine, and Ralf [Gutachter] Tonner. "Hydrogen Isotope Transport and Separation via Layered and Two-Dimensional Materials / Yun An ; Gutachter: Thomas Heine, Ralf Tonner." Dresden : Technische Universität Dresden, 2021. http://d-nb.info/1234239124/34.

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Teufel, Julia Sonja [Verfasser], and Emil [Akademischer Betreuer] Roduner. "Experimental investigation of H2/D2 isotope separation by cryoadsorption in metal-organic frameworks / Julia Sonja Teufel. Betreuer: Emil Roduner." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2013. http://d-nb.info/103371397X/34.

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Sikler, Günther [Verfasser], and H. Jürgen [Akademischer Betreuer] Kluge. "Massenspektrometrie kurzlebiger Sr- und Sn-Isotope und Aufbau der SHIPTRAP-Penningfallen / Günther Sikler ; Betreuer: H.-Jürgen Kluge." Heidelberg : Universitätsbibliothek Heidelberg, 2003. http://d-nb.info/1178330133/34.

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Fraunholz, Thomas [Verfasser], and R. H. W. [Akademischer Betreuer] Hoppe. "Transport at Interfaces in Lipid Membranes and Enantiomer Separation / Thomas Fraunholz. Betreuer: R. H. W. Hoppe." Augsburg : Universität Augsburg, 2015. http://d-nb.info/1077705638/34.

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Löbnitz, Lisa [Verfasser], and H. [Akademischer Betreuer] Nirschl. "Auslegung des Separationsprozesses und Entwicklung neuer Verfahrenskonzepte zur integrierten Produktion und Separation kristalliner Aminosäuren / Lisa Löbnitz ; Betreuer: H. Nirschl." Karlsruhe : KIT-Bibliothek, 2020. http://d-nb.info/1210033577/34.

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Shinbrough, Kai. "Infrared and Thermal-Desorption Spectroscopy of H2 and D2 in Metal Organic Frameworks." Oberlin College Honors Theses / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1495632169708899.

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Books on the topic "H/D isotope separation"

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Ebert, Robert W. Isotope exchange on SS walls for H and D containing hydrocarbons during D+ irradiation of graphite. 2005.

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Fifield, Peter. Modernism and Physical Illness. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198825425.001.0001.

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T. S. Eliot memorably said that separation of the man who suffers from the mind that creates is the root of good poetry. This book argues that this is wrong. Beginning from Virginia Woolf’s ‘On Being Ill’, it demonstrates that modernism is, on the contrary, invested in physical illness as a subject, method, and stylizing force. Experience of physical ailments, from the fleeting to the fatal, the familiar to the unusual, structures the writing of the modernists, both as sufferers and onlookers. Illness reorients the relation to and appearance of the world, making it appear newly strange; it det
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Book chapters on the topic "H/D isotope separation"

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Renger, G., G. Christen, and A. Seeliger. "H/D Isotope Exchange Effects and pH-Dependence of Reactions Leading to Photosynthetic Water Cleavage." In Photosynthesis: Mechanisms and Effects. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-3953-3_320.

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Sander, Martin U., Mark S. Gudiksen, and Klaus Luther. "Excitation Energy Dependence of the H/D Isotope Effect in the Geminate Recombination of Hydrated Electrons." In Springer Series in Chemical Physics. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-72289-9_179.

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Suzuki, Kimichi, Yukio Kawashima, and Masanori Tachikawa. "Nuclear Quantum Effect and H/D Isotope Effect on Hydrogen-Bonded Systems with Path Integral Simulation." In Frontiers of Quantum Chemistry. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5651-2_16.

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Ishimoto, Takayoshi, and Masanori Tachikawa. "Theoretical Analysis of Phase-Transition Temperature of Hydrogen-Bonded Dielectric Materials Induced by H/D Isotope Effect." In Advances in Quantum Methods and Applications in Chemistry, Physics, and Biology. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01529-3_17.

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Honda, Hisashi, Shinshin Kyo, Yousuke Akaho, Satoshi Takamizawa, and Hiromitsu Terao. "H/D isotope effect of 1H MAS NMR spectra and 79Br NQR frequencies of piperidinium p-bromobenzoate and pyrrolidinium p-bromobenzoate." In HFI / NQI 2010. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-94-007-1269-0_47.

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"Appendix D: Neutron Transmutation Doping of Silica." In Laser Isotope Separation in Atomic Vapor. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/352760894x.app4.

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Hayashi, A., M. Shiga, and M. Tachikawaa. "H/D Isotope Effect on The Lithium Bonded Cluster by ab initio Path Integral Molecular Dynamics Simulation." In Recent Progress in Computational Sciences and Engineering (2 vols). CRC Press, 2006. http://dx.doi.org/10.1201/b12066-81.

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Saidi, Pooneh, and Mahdi Sadeghi. "Production of the 103Pd via Cyclotron and Preparation of the Brachytherapy Seed." In Recent Techniques and Applications in Ionizing Radiation Research. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92457.

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This study will briefly explain the production of 103Pd via cyclotron for brachytherapy use. The excitation functions of 103Rh(p,n)103Pd and 103Rh(d,2n)103Pd reactions were calculated using ALICE/91, ALICE/ASH, and TALYS-1.2 codes and compared with published data. Production of 103Pd was done via 103Rh(p,n)103Pd nuclear reaction. The target was bombarded with 18 MeV protons at 200 μA beam current for 15 h. After irradiation and radiochemical separation of the electroplated rhodium target, at the optimum condition, 103Pd was absorbed into Amberlite®IR-93 resin. The preparation of the brachytherapy seed, which is loaded by the resin beads, has also been presented. At least, the method to determine the dosimetric parameters for the seed by experimental measurement has been presented.
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Newnham, Robert E. "Magnetic phenomena." In Properties of Materials. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198520757.003.0016.

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In this chapter we deal with a number of magnetic properties and their directional dependence: pyromagnetism, magnetic susceptibility, magnetoelectricity, and piezomagnetism. In the course of dealing with these properties, two new ideas are introduced: magnetic symmetry and axial tensors. Moving electric charge generates magnetic fields and magnetization. Macroscopically, an electric current i flowing in a coil of n turns per meter produces a magnetic field H = ni amperes/meter [A/m]. On the atomic scale, magnetization arises from unpaired electron spins and unbalanced electronic orbital motion. The weber [Wb] is the basic unit of magnetic charge m. The force between two magnetic charges m1 and m2 is where r is the separation distance and μ0 (=4π×10−7 H/m) is the permeability of vacuum. In a magnetic field H, magnetic charge experiences a force F = mH [N]. North and south poles (magnetic charges) separated by a distance r create magnetic dipole moments mr [Wb m]. Magnetic dipole moments provide a convenient way of picturing the atomistic origins arising from moving electric charge. Magnetization (I) is the magnetic dipole moment per unit volume and is expressed in units of Wb m/m3 = Wb/m2. The magnetic flux density (B = I + μ0H) is also in Wb/m2 and is analogous to the electric displacement D. All materials respond to magnetic fields, producing a magnetization I = χH, and a magnetic flux density B = μH where χ is the magnetic susceptibility and μ is the magnetic permeability. Both χ and μ are in henries/m (H/m). The permeability μ = χ + μ0 and is analogous to electric permittivity. χ and μ are sometimes expressed as dimensionless quantities (x ̅ and μ ̅ and ) like the dielectric constant, where = x ̅/μ0 and = μ ̅/μ0. Other magnetic properties will be defined later in the chapter. A schematic view of the submicroscopic origins of magnetic phenomena is presented in Fig. 14.1. Most materials are diamagnetic with only a weak magnetic response induced by an applied magnetic field.
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Conference papers on the topic "H/D isotope separation"

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Fukumasa, O. "Study of Isotope Effect on H−/D− Volume Production in Low-Pressure H2 /D2 Plasmas Using VUV Emission." In PRODUCTION AND NEUTRALIZATION OF NEGATIVE IONS AND BEAMS: Ninth International Symposium on the Production and Neutralization of Negative Ions and Beams. AIP, 2002. http://dx.doi.org/10.1063/1.1517902.

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Stolterfoht, N., R. Cabrera-Trujillo, Y. Öhrn, et al. "Enormous Isotope Effects on Charge Transfer in Slow Collisions of He[sup 2+] with H, D, and T." In COMPUTATIONAL METHODS IN SCIENCE AND ENGINEERING: Theory and Computation: Old Problems and New Challenges. Lectures Presented at the International Conference on Computational Methods in Science and Engineering 2007 (ICCMSE 2007): VOLUME 1. AIP, 2007. http://dx.doi.org/10.1063/1.2836057.

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Fukumasa, Osamu. "Isotope Effect of H−/D− Volume Production in Low-Pressure H2/D2 Plasmas — Negative Ion Densities versus Plasma Parameters." In PRODUCTION AND NEUTRALIZATION OF NEGATIVE IONS AND BEAMS: 10th International Symposium on Production and Neutralization of Negative Ions and Beams. AIP, 2005. http://dx.doi.org/10.1063/1.1908283.

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Mering, John, and Shaun L. L. Barker. "APPLYING LASER SPECTROSCOPY TO MEASURE D/H IN PHYLLOSILICATES: A NEW TOOL FOR EXPLORING HYDROGEN ISOTOPE VARIATION IN GEOLOGIC SYSTEMS." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-308552.

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Hammad, Khaled J., and Ivana M. Milanovic. "A POD Study of an Impinging Jet Flowfield." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78398.

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Snapshot Proper Orthogonal Decomposition (POD) has been applied to reveal the dominant flow structures of an impinging jet flow field. PIV datasets of 200 snapshots were used for the POD analysis. The planar PIV measurements covered the free jet, stagnation and wall jet regions. The jet issued from a long pipe, 112 diameter, D, which ensured fully developed turbulent flow conditions at the outlet. The Reynolds number based on jet mean exit velocity was 16,000 and the pipe-to-plate separation, H, varied between 1D and 8D. The five most energetic modes were identified and found to contain 19–32%
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Kaushal, Arun, Gurpreet Singh, Subhash Chander, and Anjan Ray. "Heat Transfer Characteristics of Low Reynolds Number Turbulent Swirling LPG/Air Flame Impinging on a Flat Surface." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22366.

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An experimental study has been conducted to determine the heat transfer characteristics for low Reynolds number turbulent swirling LPG/Air flames impinging on a flat surface. Effect of variation of Reynolds number (3000–7000), dimensionless separation distance (H/d = 1 to 6) and equivalence ratio (φ = 0.8 to 2) on heat transfer characteristics has been determined at constant swirl number of 4. Further, experiments were also conducted to investigate the effect of swirl number on heat transfer characteristics at Re = 7000, φ = 1.0 and H/d = 5. It has been concluded that the major drawback of fla
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Chishty, Muhammad Aqib, Hossein Raza Hamdani, Khalid Parvez, and Muhammad Nafees Mumtaz Qadri. "Study of Flow Controlling on LP Turbine at Different Reynolds Number." In ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fedsm2012-72094.

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Active and passive techniques have been used in the past, to control flow separation. Numerous studies were published on controlling and delaying the flow separation on low pressure turbine. In this study, a single dimple (i.e. passive device) is engraved on the suction side of LP turbine cascade T106A. The main aim of this research is to find out the optimum parameters of dimple i.e. diameter (D) and depth (h) which can produce strong enough vortex that can control the flow either in transition or fully turbulent phase. Furthermore, this optimal dimple is engraved to suppress the boundary lay
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Luo, Jiang, and Eli H. Razinsky. "Analysis of Turbulent Flow in 180° Turning Ducts With and Without Guide Vanes." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-28173.

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This paper presents a numerical study of the turbulent flows through a number of 2-D and 3-D 180° U-ducts, with and without guide vanes, using the Reynolds-averaged Navier-Stokes method. Computations have been first carried out for a 2-D U-duct flow (W/H = 1.0) with four turbulence models (V2F, k-ε, SST and Reynolds stress). The models’ capability for streamline curvature effects on turbulence and separation has been assessed, using flow and turbulence data. The effects of adding a guide vane inside the bend have been analyzed, to reduce/avoid flow separation. Three vanes with different radial
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Radhakrishnan, Anand N. P., Marc Pradas, Serafim Kalliadasis, and Asterios Gavriilidis. "Nonlinear Dynamics of Gas-Liquid Separation in a Capillary Microseparator." In ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icnmm2018-7613.

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Micro-engineered devices (MED) are seeing a significant growth in performing separation processes1. Such devices have been implemented in a range of applications from chemical catalytic reactors to product purification systems like microdistillation. One of the biggest advantages of these devices is the dominance of capillarity and interfacial tension forces. A field where MEDs have been used is in gas-liquid separations. These are encountered, for example, after a chemical reactor, where a gaseous component being produced needs immediate removal from the reactor, because it can affect subsequ
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Ono, Ayako, Masaaki Tanaka, Jun Kobayashi, and Hideki Kamide. "Influence of Inlet Velocity Condition on Unsteady Flow Characteristics in Piping With a Short-Elbow at High Reynolds Number Condition." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30378.

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In design of the Japan Sodium-cooled Fast Reactor (JSFR), mean velocity of the coolant is approximately 9 m/s in the primary hot leg (H/L) piping which diameter is 1.27 m. The Reynolds number in the H/L piping reaches 4.2×107. Moreover, a short-elbow which has Rc/D = 1.0 (Rc: Curvature radius, D: Pipe diameter) is used in the hot leg piping in order to achieve compact plant layout and reduce plant construction cost. In the H/L piping, flow-induced vibration (FIV) is concerned due to excitation force which is caused by pressure fluctuation on the wall closely related with the velocity fluctuati
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