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Journal articles on the topic 'CFD modelling for gas coolers'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Zhang, Xinyu, Yunting Ge, Jining Sun, Liang Li, and Savvas A. Tassou. "CFD Modelling of Finned-tube CO2 Gas Cooler for Refrigeration Systems." Energy Procedia 161 (March 2019): 275–82. http://dx.doi.org/10.1016/j.egypro.2019.02.092.

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2

Adeniyi, A. A., H. P. Morvan, and K. A. Simmons. "A coupled Euler-Lagrange CFD modelling of droplets-to-film." Aeronautical Journal 121, no. 1246 (2017): 1897–918. http://dx.doi.org/10.1017/aer.2017.107.

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ABSTRACTIn this paper, a droplet to film interaction model technique is presented. In the proposed approach, the liquid and gas continua are modelled using an enhanced Volume-of-Fluid (VoF) technique while the droplets are tracked using a Lagrangian framework and are coupled to the Eulerian phases using source terms. The eventual target application is an aeroengine bearing chamber in which oil is found as droplets, shed from the bearings, splashing on impact, separated from wall surfaces at obstacles or simply re-entrained, and as a continuum oil film coating the bearing chamber outer walls wh

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3

Orosz, Gergely Imre, and Attila Aszódi. "CFD modelling of mixing vane spacer grids for ALLEGRO relevant gas cooled reactor fuel geometry." Annals of Nuclear Energy 164 (December 2021): 108628. http://dx.doi.org/10.1016/j.anucene.2021.108628.

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4

Javiya, Umesh, John Chew, Nick Hills, and Timothy Scanlon. "Coupled FE–CFD thermal analysis for a cooled turbine disk." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 18 (2015): 3417–32. http://dx.doi.org/10.1177/0954406215572430.

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This paper presents transient aero-thermal analysis for a gas turbine disk and the surrounding air flows through a transient slam acceleration/deceleration “square cycle” engine test, and compares predictions with engine measurements. The transient solid–fluid interaction calculations were performed with an innovative coupled finite element (FE) and computational fluid dynamics (CFD) approach. The computer model includes an aero-engine high pressure turbine (HPT) disk, adjacent structure, and the surrounding internal air system cavities. The model was validated through comparison with the engi

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5

Zhang, X. Y., Y. T. Ge, and J. N. Sun. "Performance analysis of finned-tube CO2 gas cooler with advanced 1D-3D CFD modelling development and simulation." Applied Thermal Engineering 176 (July 2020): 115421. http://dx.doi.org/10.1016/j.applthermaleng.2020.115421.

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6

Kukutla, Pol, and B. Prasad. "Coupled flow network model and CFD analysis for a combined impingement and film cooled gas turbine nozzle guide vane." Modelling, Measurement and Control B 86, no. 1 (2017): 250–70. http://dx.doi.org/10.18280/mmc_b.860118.

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7

Rossetti, Antonio, Sergio Marinetti, and Silvia Minetto. "Multi-physics simulation of CO2 gas coolers using equivalence modelling." International Journal of Refrigeration 90 (June 2018): 99–107. http://dx.doi.org/10.1016/j.ijrefrig.2018.04.013.

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8

Al-Rashed, Mohsen H., and Alan G. Jones. "CFD modelling of gas–liquid reactive precipitation." Chemical Engineering Science 54, no. 21 (1999): 4779–84. http://dx.doi.org/10.1016/s0009-2509(99)00194-3.

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9

Mangra, A. C. "Micro gas turbine combustion chamber CFD modelling." IOP Conference Series: Materials Science and Engineering 916 (September 11, 2020): 012064. http://dx.doi.org/10.1088/1757-899x/916/1/012064.

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10

Zilio, Claudio, and Simone Mancin. "Shell and tube carbon dioxide gas coolers – Experimental results and modelling." International Journal of Refrigeration 56 (August 2015): 224–34. http://dx.doi.org/10.1016/j.ijrefrig.2015.04.006.

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11

Śmierciew, Kamil, Jerzy Gagan, and Dariusz Butrymowicz. "Numerical modelling of air-cooler using simplified methods." E3S Web of Conferences 70 (2018): 02015. http://dx.doi.org/10.1051/e3sconf/20187002015.

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The fin-and-tube air coolers have been extensively used in refrigeration systems applied to cold storage chambers. The performance of the heat exchanger affects the efficiency of the systems and makes the study of heat exchanger becomes important. Prediction of the temperature, humidity, as well as velocity distribution in cold storage chamber requires accurate prediction of operation of the finned air cooler. The presence of the air cooler unit is usually taken into account by the investigators, but with very simplified geometry and physics. Results of numerical modelling using the computatio

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12

Chai, Lei, Konstantinos M. Tsamos, and Savvas A. Tassou. "Modelling and Evaluation of the Thermohydraulic Performance of Finned-Tube Supercritical Carbon Dioxide Gas Coolers." Energies 13, no. 5 (2020): 1031. http://dx.doi.org/10.3390/en13051031.

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This paper investigates the thermohydraulic performance of finned-tube supercritical carbon dioxide (sCO2) gas coolers operating with refrigerant pressures near the critical point. A distributed modelling approach combined with the ε-NTU method has been developed for the simulation of the gas cooler. The heat transfer and pressure drop for each evenly divided segment are calculated using empirical correlations for Nusselt number and friction factor. The model was validated against test results and then used to investigate the influence of design and operating parameters on local and overall ga

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13

Santosa, IDewa M. C., Konstantinos M. Tsamos, Baboo L. Gowreesunker, and Savvas A. Tassou. "Experimental and CFD investigation of overall heat transfer coefficient of finned tube CO2 gas coolers." Energy Procedia 161 (March 2019): 300–308. http://dx.doi.org/10.1016/j.egypro.2019.02.096.

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14

Zhang, Xinyu, Yunting Ge, and Jining Sun. "CFD performance analysis of finned-tube CO2 gas coolers with various inlet air flow patterns." Energy and Built Environment 1, no. 3 (2020): 233–41. http://dx.doi.org/10.1016/j.enbenv.2020.02.004.

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15

Fiates, Juliane, Raphael Ribeiro Cruz Santos, Fernando Fernandes Neto, Artur Zaghini Francesconi, Vinicius Simoes, and Sávio S. V. Vianna. "An alternative CFD tool for gas dispersion modelling of heavy gas." Journal of Loss Prevention in the Process Industries 44 (November 2016): 583–93. http://dx.doi.org/10.1016/j.jlp.2016.08.002.

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16

Taha, Taha, and Z. F. Cui. "CFD modelling of gas-sparged ultrafiltration in tubular membranes." Journal of Membrane Science 210, no. 1 (2002): 13–27. http://dx.doi.org/10.1016/s0376-7388(02)00360-5.

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17

McKenna, T. F., D. Cokljat, and P. Wild. "CFD Modelling of heat transfer during gas phase olefin polymerisation." Computers & Chemical Engineering 22 (March 1998): S285—S292. http://dx.doi.org/10.1016/s0098-1354(98)00066-0.

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18

Kim, Seong Cheon, and Young Nam Chun. "CFD modelling of electrohydrodynamic gas flow in an electrostatic precipitator." International Journal of Environment and Pollution 36, no. 4 (2009): 337. http://dx.doi.org/10.1504/ijep.2009.023661.

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19

Coroneo, M., G. Montante, M. Giacinti Baschetti, and A. Paglianti. "CFD modelling of inorganic membrane modules for gas mixture separation." Chemical Engineering Science 64, no. 5 (2009): 1085–94. http://dx.doi.org/10.1016/j.ces.2008.10.065.

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20

Both, A. L., G. Atanga, and H. Hisken. "CFD modelling of gas explosions: Optimising sub-grid model parameters." Journal of Loss Prevention in the Process Industries 60 (July 2019): 159–73. http://dx.doi.org/10.1016/j.jlp.2019.04.008.

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21

Schmidtke, Martin, and Dirk Lucas. "CFD Approaches for Modelling Bubble Entrainment by an Impinging Jet." Science and Technology of Nuclear Installations 2009 (2009): 1–12. http://dx.doi.org/10.1155/2009/148436.

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This contribution presents different approaches for the modeling of gas entrainment under water by a plunging jet. Since the generation of bubbles happens on a scale which is smaller than the bubbles, this process cannot be resolved in meso-scale simulations, which include the full length of the jet and its environment. This is why the gas entrainment has to be modeled in meso-scale simulations. In the frame of a Euler-Euler simulation, the local morphology of the phases has to be considered in the drag model. For example, the gas is a continuous phase above the water level but bubbly below th

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22

Song, Tao, Kaixi Jiang, Junwu Zhou, Deyu Wang, Ning Xu, and Yuqing Feng. "CFD modelling of gas–liquid flow in an industrial scale gas-stirred leaching tank." International Journal of Mineral Processing 142 (September 2015): 63–72. http://dx.doi.org/10.1016/j.minpro.2015.01.005.

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23

Gilham, S., D. M. Deaves, and P. Woodburn. "Mitigation of dense gas releases within buildings: validation of CFD modelling." Journal of Hazardous Materials 71, no. 1-3 (2000): 193–218. http://dx.doi.org/10.1016/s0304-3894(99)00079-5.

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24

Dapelo, Davide, Federico Alberini, and John Bridgeman. "Euler-Lagrange CFD modelling of unconfined gas mixing in anaerobic digestion." Water Research 85 (November 2015): 497–511. http://dx.doi.org/10.1016/j.watres.2015.08.042.

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25

Kolokotroni, M., N. Saiz, and J. Littler. "Moisture movement: A study using tracer gas techniques and CFD modelling." Building Services Engineering Research and Technology 13, no. 2 (1992): 113–17. http://dx.doi.org/10.1177/014362449201300209.

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26

Boroń, Sylwia, Wojciech Węgrzyński, Przemysław Kubica, and Lech Czarnecki. "Numerical Modelling of the Fire Extinguishing Gas Retention in Small Compartments." Applied Sciences 9, no. 4 (2019): 663. http://dx.doi.org/10.3390/app9040663.

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Active fire protection systems are critical elements of good process safety. Among them, gaseous extinguishing systems provide quick, clean suppression and prolonged protection due to long retention process of the gas. Standard design methods do not provide sufficient tools for optimisation of the retention process, thus the necessity for development and validation of new tools and methods—such as Computational Fluid Dynamics (CFD) simulations. This paper presents a simplified approach to CFD modelling, by the omission of the discharge phase of the gas system. As the flow field after discharge

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27

Stęchły, Katarzyna, Gabriel Wecel, and Derek B. Ingham. "CFD modelling of air and oxy-coal combustion." International Journal of Numerical Methods for Heat & Fluid Flow 24, no. 4 (2014): 825–44. http://dx.doi.org/10.1108/hff-02-2013-0066.

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Purpose – The main goal of this work was the CFD analysis of air and oxy-coal combustion, in order to develop a validated with experimental measurements model of the combustion chamber. Moreover, the purpose of this paper is to provide information about limitations of the sub-models implemented in commercial CFD code ANSYS Fluent version 13.0 for the oxy-coal combustion simulations. The influence of implementation of the weighted sum of gray gas model (WSGGM) with coefficients updated to oxy-coal combustion environment has been investigated. Design/methodology/approach – The sub-models validat

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28

Rampure, Mohan R., Vivek V. Buwa, and Vivek V. Ranade. "Modelling of Gas-Liquid/Gas-Liquid-Solid Flows in Bubble Columns: Experiments and CFD Simulations." Canadian Journal of Chemical Engineering 81, no. 3-4 (2008): 692–706. http://dx.doi.org/10.1002/cjce.5450810348.

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29

Vesvikar, Mehul S., and Muthanna Al-Dahhan. "Effect of Scale on Hydrodynamics of Internal Gas-Lift Loop Reactor-Type Anaerobic Digester Using CFD." Chemical Product and Process Modeling 10, no. 3 (2015): 179–92. http://dx.doi.org/10.1515/cppm-2015-0009.

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Abstract This work evaluates the ability of computational fluid dynamics (CFD) to simulate the flow and predict the hydrodynamics of internal gas-lift loop reactor (IGLR)-type anaerobic digester. In addition, it also analyzes if CFD can account for the effects of operating conditions, geometry as well as scale of the reactor. For this purpose, three-dimensional two-phase CFD simulations were performed using CFX for laboratory-scale and pilot-scale IGLR. The CFD predictions were evaluated against experimental data obtained from computer automated radioactive particle tracking (CARPT). The CFD p

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30

Silva, Marcus Vinicius de Assis, Márcio Aredes Martins, Leda Rita D'Antonino Faroni, Jaime Daniel Bustos Vanegas, and Adalberto Hipólito de Sousa. "CFD modelling of diffusive-reactive transport of ozone gas in rice grains." Biosystems Engineering 179 (March 2019): 49–58. http://dx.doi.org/10.1016/j.biosystemseng.2018.12.010.

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31

Marek, M. "CFD modelling of gas flow through a fixed bed of Raschig rings." Journal of Physics: Conference Series 530 (August 22, 2014): 012016. http://dx.doi.org/10.1088/1742-6596/530/1/012016.

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32

Verdin, P. G., C. P. Thompson, and L. D. Brown. "CFD modelling of stratified/atomization gas–liquid flow in large diameter pipes." International Journal of Multiphase Flow 67 (December 2014): 135–43. http://dx.doi.org/10.1016/j.ijmultiphaseflow.2014.07.008.

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33

Pontiggia, M., M. Derudi, M. Alba, M. Scaioni, and R. Rota. "Hazardous gas releases in urban areas: Assessment of consequences through CFD modelling." Journal of Hazardous Materials 176, no. 1-3 (2010): 589–96. http://dx.doi.org/10.1016/j.jhazmat.2009.11.070.

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34

Skřínský, Jan, Jan Koloničný, and Tadeáš Ochodek. "Explosion Characteristics of Hydrogen for CFD Modelling and Simulation of Turbulent Gas Flow." MATEC Web of Conferences 168 (2018): 07013. http://dx.doi.org/10.1051/matecconf/201816807013.

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Renewable energies became more and more important in the last years. Hydrogen as a promising energy carrier is a perfect candidate to supply the energy demand of the world. The state of the hydrogen gas (turbulences and point concentrations) has a significant impact on the gas explosion indices. A gas cloud is formed by a partial-pressure method in gas explosion experiments in the spherical 20.0∙10-3 m3 chamber. Gas in the chamber reaches an uniform state beyond in hundreds of ms. The absolute pressure for gas dispersion should be higher than 0.01 MPa for the H2 of concentration larger than 30

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35

Zhao, Zhijian, Zhiyong Wang, Dan Wang, Jie-Xin Wang, Yuan Pu, and Jian-Feng Chen. "CFD modelling of gas flow characteristics for the gas-heating holder in environmental transmission electron microscope." Canadian Journal of Chemical Engineering 97, no. 3 (2018): 777–84. http://dx.doi.org/10.1002/cjce.23217.

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36

Ren, Ting-xiang. "CFD modelling of longwall goaf gas flow to improve gas capture and prevent goaf self-heating." Journal of Coal Science and Engineering (China) 15, no. 3 (2009): 225–28. http://dx.doi.org/10.1007/s12404-009-0301-8.

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37

Schalau, Sebastian, Abdelkarim Habib, and Simon Michel. "Atmospheric Wind Field Modelling with OpenFOAM for Near-Ground Gas Dispersion." Atmosphere 12, no. 8 (2021): 933. http://dx.doi.org/10.3390/atmos12080933.

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CFD simulations of near-ground gas dispersion depend significantly on the accuracy of the wind field. When simulating wind fields with conventional RANS turbulence models, the velocity and turbulence profiles specified as inlet boundary conditions change rapidly in the approach flow region. As a result, when hazardous materials are released, the extent of hazardous areas is calculated based on an approach flow that differs significantly from the boundary conditions defined. To solve this problem, a turbulence model with consistent boundary conditions was developed to ensure a horizontally homo

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38

Mohamad, Barhm, Jalics Karoly, and Andrei Zelentsov. "CFD MODELLING OF FORMULA STUDENT CAR INTAKE SYSTEM." Facta Universitatis, Series: Mechanical Engineering 18, no. 1 (2020): 153. http://dx.doi.org/10.22190/fume190509032m.

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Formula Student Car (FS) is an international race car design competition for students at universities of applied sciences and technical universities. The winning team is not the one that produces the fastest racing car, but the group that achieves the highest overall score in design, racing performance. The arrangement of internal components for example, predicting aerodynamics of the air intake system is crucial to optimizing car performance as speed changes. The air intake system consists of an inlet nozzle, throttle, restrictor, air box and cylinder suction pipes (runners). The paper deals

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39

Reichert, F., and A. Petchanka. "3D CFD Arc Fault Simulation in Gas-Insulated Switchgears." PLASMA PHYSICS AND TECHNOLOGY 6, no. 1 (2019): 35–38. http://dx.doi.org/10.14311/ppt.2019.1.35.

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Arc fault processes can lead to strong damages in gas-insulated switchgears and have to be considered in the development process. In order to reduce test costs, the development of overpressure protection systems can be supported by CFD arc fault simulations. The paper deals with the modelling and simulation of arc fault processes in gas--insulated switchgears. The developed simulation tool takes into account a three-dimensional arc model and the opening of a rupture disc during the arc fault process. The influence of different insulating media as e.g. SF<sub>6</sub>, Air and CO<

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40

Mimouni, Stéphane, Namane Mechitoua, and Mehdi Ouraou. "CFD Recombiner Modelling and Validation on the H2-Par and Kali-H2Experiments." Science and Technology of Nuclear Installations 2011 (2011): 1–13. http://dx.doi.org/10.1155/2011/574514.

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A large amount of Hydrogen gas is expected to be released within the dry containment of a pressurized water reactor (PWR), shortly after the hypothetical beginning of a severe accident leading to the melting of the core. According to local gas concentrations, the gaseous mixture of hydrogen, air and steam can reach the flammability limit, threatening the containment integrity. In order to prevent mechanical loads resulting from a possible conflagration of the gas mixture, French and German reactor containments are equipped with passive autocatalytic recombiners (PARs) which preventively oxidiz

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41

Nosek, Radovan, Jozef Jandacka, and Andrzej Szlek. "Boiler Modelling of Simple Combustion Processes." International Journal of Energy Optimization and Engineering 1, no. 3 (2012): 96–119. http://dx.doi.org/10.4018/ijeoe.2012070105.

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The aim of the work is to investigate coal combustion in fixed bed reactor. The experimental results were worked out in the form of approximation functions describing gas composition at the exit of fixed bed reactor. Furthermore, developed functions were applied for defining the boundary conditions at the interface between the fixed bed and gas phase using FLUENT. The simulations of a domestic boiler have been done and the relative effects of different factors in CFD code were evaluated by sensitivity analysis. The validity of the model was verified by measurements which were done in a 25 kW d

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42

Rulik, Sebastian, Leszek Remiorz, and Sławomir Dykas. "Application of CFD technique for modelling of the thermoacoustic engine." Archives of Thermodynamics 32, no. 3 (2011): 175–90. http://dx.doi.org/10.2478/v10173-011-0021-5.

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Application of CFD technique for modelling of the thermoacoustic engineThe paper is concerned with an important issue from the field of thermoacoustics - the numerical modelling of the flow field in the thermoacoustic engine. The presented way of modelling is based on the solution to fundamental fluid mechanics equations that govern the flow of compressible, viscous, and heat-transferring gas. The paper presents the way of modelling the thermoacoustic engine, the way of conducting calculations and the results which illustrate the correctness of the selected computational technique.

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43

Sami, Nagham Amer, and Zoltan Turzo. "Computational fluid dynamic (CFD) modelling of transient flow in the intermittent gas lift." Petroleum Research 5, no. 2 (2020): 144–53. http://dx.doi.org/10.1016/j.ptlrs.2020.03.001.

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44

Tang, Xin, Marcus Kirschen, Markus Abel, and Herbert Pfeifer. "Modelling of EAF Off-Gas Post Combustion in Dedusting Systems using CFD Methods." steel research international 74, no. 4 (2003): 201–10. http://dx.doi.org/10.1002/srin.200300182.

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45

Morud, K. E., and B. H. Hjertager. "LDA measurements and CFD modelling of gas-liquid flow in a stirred vessel." Chemical Engineering Science 51, no. 2 (1996): 233–49. http://dx.doi.org/10.1016/0009-2509(95)00270-7.

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46

Ndalila, Petro, Yuxing Li, and Cuiwei Liu. "Modelling Flow Behavior of Gas Leakage from Buried Pipelineu." European Journal of Engineering Research and Science 5, no. 11 (2020): 1343–48. http://dx.doi.org/10.24018/ejers.2020.5.11.2117.

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Risks in gas transportation are usually comprised of losses of the valuable gas, fire, explosion, and destruction to the environment. The safety of this infrastructure especially flammable gas pipelines is of great importance due to potential associated risks when leakage happens. An accurate understanding of the dispersion characteristics of the leaked gas from the underground pipe is of great importance. A gas leaking model from the buried pipeline was established based on computational fluid dynamics (CFD) technique, to simulate the situation. At the incidence of leakage, gas will propagate

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47

Scargiali, Francesca, Antonio Busciglio, Andrea Cipollina, et al. "Modelling and Simulation of Gas–liquid Hydrodynamics in a Rectangular Air-lift Reactor." International Journal of Chemical Reactor Engineering 11, no. 2 (2013): 667–74. http://dx.doi.org/10.1515/ijcre-2012-0040.

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Abstract Computational Fluid Dynamics is a quite well established tool for carrying out realistic simulations of process apparatuses. However, as a difference from single phase systems, for multiphase systems the development of CFD models is still in progress. Among the two-phase systems, gas–liquid systems are characterised by an additional complexity level, related to the fact that bubble sizes are not known in advance, being rather the result of formation and breakage-coalescence dynamics and therefore of complex phenomena related to flow dynamics and interfacial effects. In the present wor

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48

Pantousa, Daphne, and Euripidis Mistakidis. "Interface modelling between CFD and FEM analysis: the dual-layer post-processing model." Engineering Computations 34, no. 4 (2017): 1166–90. http://dx.doi.org/10.1108/ec-06-2015-0146.

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Purpose The primary purpose of this paper is the development of a fire–structure interface (FSI) model, which is referred in this study as a simplified “dual-layer” model. It is oriented for design purposes, in the cases where fire-compartments exceed the “regular” dimensions, as they are defined by the guidelines of the codes (EN 1991-1-2). Design/methodology/approach The model can be used at the post-processing stage of computational fluid dynamics (CFD) analysis and it is based on the gas-temperature field (spatial and temporal) of the fire-compartment. To use the “dual-layer” model, first

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49

Haddadi Sisakht, Bahram, Christian Jordan, Philipp Schretter, Tino Lassmann, and Michael Harasek. "Designing Better Membrane Modules Using CFD." Chemical Product and Process Modeling 11, no. 1 (2016): 57–66. http://dx.doi.org/10.1515/cppm-2015-0066.

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Abstract In the last decades, a large number of studies have been carried out on the utilization of membranes in separation processes. However, most of these studies deal with material properties, experimental investigations and process modeling. Only quite a few authors utilized computational fluid dynamics (CFD) to analyze the flow and mass transfer in membrane modules. Using CFD it is possible to obtain spatially resolved information on the behavior of membrane modules, allowing for the investigation of geometric effects on the performance of the module. This includes e. g. the positioning

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50

Spicka, Peter, Madalena M. Dias, and Jose’e Carlos B. Lopes. "Gas–liquid flow in a 2D column: Comparison between experimental data and CFD modelling." Chemical Engineering Science 56, no. 21-22 (2001): 6367–83. http://dx.doi.org/10.1016/s0009-2509(01)00276-7.

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