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Journal articles on the topic 'Turbulent combustion'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Alhumairi, Mohammed, and Özgür Ertunç. "Active-grid turbulence effect on the topology and the flame location of a lean premixed combustion." Thermal Science 22, no. 6 Part A (2018): 2425–38. http://dx.doi.org/10.2298/tsci170503100a.

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Lean premixed combustion under the influence of active-grid turbulence was computationally investigated, and the results were compared with experimental data. The experiments were carried out to generate a premixed flame at a thermal load of 9 kW from a single jet flow combustor. Turbulent combustion models, such as the coherent flame model and turbulent flame speed closure model were implemented for the simulations performed under different turbulent flow conditions, which were specified by the Reynolds number based on Taylor?s microscale, the dissipation rate of turbulence, and turbulent kin

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2

MIYAUCHI, Toshio. "Turbulence and Turbulent Combustion." TRENDS IN THE SCIENCES 19, no. 4 (2014): 4_44–4_48. http://dx.doi.org/10.5363/tits.19.4_44.

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3

d’Adamo, Alessandro, Clara Iacovano, and Stefano Fontanesi. "A Data-Driven Methodology for the Simulation of Turbulent Flame Speed across Engine-Relevant Combustion Regimes." Energies 14, no. 14 (2021): 4210. http://dx.doi.org/10.3390/en14144210.

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Turbulent combustion modelling in internal combustion engines (ICEs) is a challenging task. It is commonly synthetized by incorporating the interaction between chemical reactions and turbulent eddies into a unique term, namely turbulent flame speed sT. The task is very complex considering the variety of turbulent and chemical scales resulting from engine load/speed variations. In this scenario, advanced turbulent combustion models are asked to predict accurate burn rates under a wide range of turbulence–flame interaction regimes. The framework is further complicated by the difficulty in unambi

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4

Gorev, V. A. "Modes of Explosive Combustion during Emergency Explosions of the Gas Clouds in the Open Space." Occupational Safety in Industry, no. 8 (August 2022): 7–12. http://dx.doi.org/10.24000/0409-2961-2022-8-7-12.

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Emergency explosions of steam clouds in the open space occur in the deflagration combustion mode. Destructive force of the explosive waves is mainly determined by the rate of combustion in the steam cloud. Therefore, the issue of explosive combustion rate is the key one for predicting explosion parameters. To form the waves of destructive force, it is required that the combustion rate of the substance in the cloud increase by 30 or more times compared to laminar. The main and generally recognized mechanism of combustion intensification is turbulization of the process as a result of interaction

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5

Giacomazzi, Eugenio, and Donato Cecere. "A Combustion Regime-Based Model for Large Eddy Simulation." Energies 14, no. 16 (2021): 4934. http://dx.doi.org/10.3390/en14164934.

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The aim of this work is to propose a unified (generalized) closure of the chemical source term in the context of Large Eddy Simulation able to cover all the regimes of turbulent premixed combustion. Turbulence/combustion scale interaction is firstly analyzed: a new perspective to look at commonly accepted combustion diagrams is provided based on the evidence that actual turbulent flames can experience locally several combustion regimes although global non-dimensional numbers would locate such flames in a single specific operating point of the standard combustion diagram. The deliverable is a L

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6

Sjeric, Momir, Darko Kozarac, and Rudolf Tomic. "Development of a two zone turbulence model and its application to the cycle-simulation." Thermal Science 18, no. 1 (2014): 1–16. http://dx.doi.org/10.2298/tsci130103030s.

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The development of a two zone k-? turbulence model for the cycle-simulation software is presented. The in-cylinder turbulent flow field of internal combustion engines plays the most important role in the combustion process. Turbulence has a strong influence on the combustion process because the convective deformation of the flame front as well as the additional transfer of the momentum, heat and mass can occur. The development and use of numerical simulation models are prompted by the high experimental costs, lack of measurement equipment and increase in computer power. In the cycle-simulation

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7

Peters, Norbert. "Turbulent Combustion." Measurement Science and Technology 12, no. 11 (2001): 2022. http://dx.doi.org/10.1088/0957-0233/12/11/708.

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8

Poinsot, Thierry. "Turbulent Combustion." European Journal of Mechanics - B/Fluids 20, no. 3 (2001): 427–28. http://dx.doi.org/10.1016/s0997-7546(01)01134-7.

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9

Peters, N., and Prof Luc Vervisch. "Turbulent combustion." Combustion and Flame 125, no. 3 (2001): 1222–23. http://dx.doi.org/10.1016/s0010-2180(01)00233-4.

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10

Peters,, N., and AM Kanury,. "Turbulent Combustion." Applied Mechanics Reviews 54, no. 4 (2001): B73—B75. http://dx.doi.org/10.1115/1.1383686.

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11

Povilaitis, Mantas, and Justina Jaseliūnaitė. "Simulation of Hydrogen-Air-Diluents Mixture Combustion in an Acceleration Tube with FlameFoam Solver." Energies 14, no. 17 (2021): 5504. http://dx.doi.org/10.3390/en14175504.

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During a severe accident in a nuclear power plant, hydrogen can be generated, leading to risks of possible deflagration and containment integrity failure. To manage severe accidents, great experimental, analytical, and benchmarking efforts are being made to understand combustible gas distribution, deflagration, and detonation processes. In one of the benchmarks—SARNET H2—flame acceleration due to obstacle-induced turbulence was investigated in the ENACCEF facility. The turbulent combustion problem is overly complex because it involves coupling between fluid dynamics, mass/heat transfer, and ch

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12

Fureby, C. "Large eddy simulation modelling of combustion for propulsion applications." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 367, no. 1899 (2009): 2957–69. http://dx.doi.org/10.1098/rsta.2008.0271.

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Predictive modelling of turbulent combustion is important for the development of air-breathing engines, internal combustion engines, furnaces and for power generation. Significant advances in modelling non-reactive turbulent flows are now possible with the development of large eddy simulation (LES), in which the large energetic scales of the flow are resolved on the grid while modelling the effects of the small scales. Here, we discuss the use of combustion LES in predictive modelling of propulsion applications such as gas turbine, ramjet and scramjet engines. The LES models used are described

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13

Benim, Ali Cemal, and Björn Pfeiffelmann. "Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework." Energies 13, no. 1 (2019): 152. http://dx.doi.org/10.3390/en13010152.

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Within the framework of a Reynolds averaged numerical simulation (RANS) methodology for modeling turbulence, a comparative numerical study of turbulent lifted H2/N2 flames is presented. Three different turbulent combustion models, namely, the eddy dissipation model (EDM), the eddy dissipation concept (EDC), and the composition probability density function (PDF) transport model, are considered in the analysis. A wide range of global and detailed combustion reaction mechanisms are investigated. As turbulence model, the Standard k-ε model is used, which delivered a comparatively good accuracy wit

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14

Cemal Benim, Ali, and Björn Pfeiffelmann. "Validation of Combustion Models for Lifted Hydrogen Flame." E3S Web of Conferences 128 (2019): 01014. http://dx.doi.org/10.1051/e3sconf/201912801014.

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Within a Reynolds Averaged Numerical Simulation (RANS) approach for turbulence modelling, a computational investigation of a turbulent lifted H2/N2 flame is presented. Various turbulent combustion models are considered including the Eddy Dissipation Model (EDM), the Eddy Dissipation Concept (EDC), and the composition Probability Density Function transport model (PDF) in combination with different detailed and global reaction mechanisms. Turbulence is modelled using the Standard k-ɛ model, which has proven to offer a good accuracy, based on a preceding validation study for an isothermal H2/N2 j

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15

Kim, Jong-Chan, Won-Chul Jung, Ji-Seok Hong, and Hong-Gye Sung. "The Effects of Turbulent Burning Velocity Models in a Swirl-Stabilized Lean Premixed Combustor." International Journal of Turbo & Jet-Engines 35, no. 4 (2018): 365–72. http://dx.doi.org/10.1515/tjj-2016-0053.

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Abstract The effects of turbulent burning velocities in a turbulent premixed combustion simulation with a G-equation are investigated using the 3D LES technique. Two turbulent burning velocity models – Kobayashi model, which takes into account the burning velocity pressure effect, and the Pitsch model, which considers the flame regions on the premixed flame structure – are implemented. An LM6000 combustor is employed to validate the turbulent premixed combustion model. The results show that the flame structures in front of the injector have different shapes in each model because of the differe

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16

Yang, Li, Wubin Weng, Yanqun Zhu, Yong He, Zhihua Wang, and Zhongshan Li. "Investigation of Hydrogen Content and Dilution Effect on Syngas/Air Premixed Turbulent Flame Using OH Planar Laser-Induced Fluorescence." Processes 9, no. 11 (2021): 1894. http://dx.doi.org/10.3390/pr9111894.

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Syngas produced by gasification, which contains a high hydrogen content, has significant potential. The variation in the hydrogen content and dilution combustion are effective means to improve the steady combustion of syngas and reduce NOx emissions. OH planar laser-induced fluorescence technology (OH-PLIF) was applied in the present investigation of the turbulence of a premixed flame of syngas with varied compositions of H2/CO. The flame front structure and turbulent flame velocities of syngas with varied compositions and turbulent intensities were analyzed and calculated. Results showed that

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17

Reis, J. C., and C. H. Kruger. "Turbulence suppression in combustion-driven magnetohydrodynamic channels." Journal of Fluid Mechanics 188 (March 1988): 147–57. http://dx.doi.org/10.1017/s0022112088000679.

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The effects of a magnetic field on core turbulence, mean-velocity boundary-layer profiles, turbulence-intensity boundary-layer profiles and turbulent spectral-energy distributions have been experimentally determined for combustion-driven magneto-hydrodynamic (MHD) flows. The turbulence suppression of the core was found to be similar to that of liquid-metal MHD flows, even though the turbulent structure was entirely different. The mean-velocity and turbulence-intensity boundary-layer profiles were affected much less than those of liquid-metal flows, primarily because the low-temperature thermal

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18

Евсеев, Сергей Анатольевич, Дмитрий Викторович Козел та Игорь Федорович Кравченко. "ПОВЫШЕНИЕ ТОЧНОСТИ РАСЧЕТА ПОЛЯ ТЕМПЕРАТУР ГАЗА НА ВЫХОДЕ ИЗ КАМЕРЫ СГОРАНИЯ ГТД МЕТОДОМ ТРЕХМЕРНОГО КОМПЬЮТЕРНОГО МОДЕЛИРОВАНИЯ". Aerospace technic and technology, № 5 (29 серпня 2020): 74–82. http://dx.doi.org/10.32620/aktt.2020.5.10.

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The problem of numerical simulation of the gas flow with the combustion of atomized liquid fuel was solved (the equilibrium combustion model pdf was used along with the partially mixed mixture model) in the annular combustion chamber of a gas turbine engine. Numerical modeling was performed in Ansys Fluent calculation complex. The purpose of the calculations was to simulate the radial and circumferential unevenness of the gas temperature pattern at the outlet of the combustion chamber. As a result of the calculations, it was found that the accuracy of modeling the radial and circumferential un

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19

Hossain, Mohammad A., Ahsan Choudhuri, and Norman Love. "Design of an optically accessible turbulent combustion system." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 1 (2018): 336–49. http://dx.doi.org/10.1177/0954406218757565.

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In order to design the next generation of gas turbine combustors and rocket engines, understanding the flame structure at high-intensity turbulent flows is necessary. Many experimental studies have focused on flame structures at relatively low Reynolds and Damköhler numbers, which are useful but do not help to provide a deep understanding of flame behavior at gas turbine and rocket engine operating conditions. The current work is focused on the presentation of the design and development of a high-intensity (Tu = 15–30%) turbulent combustion system, which is operated at compressible flow regime

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20

Lackmann, Tim, Andreas Nygren, Anders Karlsson, and Michael Oevermann. "Investigation of turbulence–chemistry interactions in a heavy-duty diesel engine with a representative interactive linear eddy model." International Journal of Engine Research 21, no. 8 (2018): 1469–79. http://dx.doi.org/10.1177/1468087418812319.

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Simulations of a heavy-duty diesel engine operated at high-load and low-load conditions were compared to each other, and experimental data in order to evaluate the influence of turbulence–chemistry interactions on heat release, pressure development, flame structure, and temperature development are quantified. A recently developed new combustion model for turbulent diffusion flames called representative interactive linear eddy model which features turbulence–chemistry interaction was compared to a well-stirred reactor model which neglects the influence of turbulent fluctuations on the mean reac

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21

Liao, S. Y., D. M. Jiang, J. Gao, and K. Zeng. "Turbulence effects on accelerating turbulent premixed combustion." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 218, no. 9 (2004): 1035–40. http://dx.doi.org/10.1243/0954407041856845.

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22

Ballal, D. R., T. H. Chen, and W. J. Schmoll. "Fluid Dynamics of a Conical Flame Stabilizer." Journal of Engineering for Gas Turbines and Power 111, no. 1 (1989): 97–102. http://dx.doi.org/10.1115/1.3240234.

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Turbulence measurements were performed on a 45 deg conical flame stabilizer with a 31 percent blockage ratio, mounted coaxially at the mouth of a circular pipe and supplied with a turbulent premixed methane-air mixture at a Reynolds number of 2.85 × 104. A two-component LDA system was used in the measurement of mean velocities, turbulence intensities, Reynolds stresses, skewness, and kurtosis. It was found that combustion accelerates mean-flow velocities but damps turbulence intensity via the processes of turbulent dilatation and viscous dissipation due to heat release. Measurements in the axi

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23

Ga, Bui Van, Nguyen Van Dong, and Bui Van Hung. "Turbulent burning velocity in combustion chamber of SI engine fueled with compressed biogas." Vietnam Journal of Mechanics 37, no. 3 (2015): 205–16. http://dx.doi.org/10.15625/0866-7136/37/3/5939.

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Turbulent burning velocity is the most important parameter in analyzing pre-mixed combustion simulation of spark ignition engines. It depends on the laminar burning velocity and turbulence intensity in the combustion chamber. The first term can be predicted if one knows fuel composition, physico chemical properties of the fluid. The second term strongly depends on the geometry of the combustion chamber and fluid movement during the combustion process. One cannot suggest a general expression for different cases of engine. Thus, for accuracy modeling, one should determine turbulent burning veloc

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24

Veynante, Denis, and Luc Vervisch. "Turbulent combustion modeling." Progress in Energy and Combustion Science 28, no. 3 (2002): 193–266. http://dx.doi.org/10.1016/s0360-1285(01)00017-x.

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25

Borghi, R. "Turbulent combustion modelling." Progress in Energy and Combustion Science 14, no. 4 (1988): 245–92. http://dx.doi.org/10.1016/0360-1285(88)90015-9.

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26

de Lemos, Marcelo J. S., and Maximilian S. Mesquita. "Comparison of Four Thermo-Mechanical Models for Simulating Reactive Flow in Porous Materials." Defect and Diffusion Forum 297-301 (April 2010): 1493–501. http://dx.doi.org/10.4028/www.scientific.net/ddf.297-301.1493.

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The objective of this paper is to present numerical simulations of combustion of an air/methane mixture in porous materials using a model that considers the intra-pore levels of turbulent kinetic energy. Transport equations are written in their time-and-volume-averaged form and a volume-based statistical turbulence model is applied to simulate turbulence generation due to the porous matrix. Four different thermo-mechanical models are compared, namely Laminar, Laminar with Radiation Transport, Turbulent, Turbulent with Radiation Transport. Combustion is modeled via a unique simple closure. Prel

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27

Ershadi, Ali, and Mehran Rajabi-Zargarabadi. "Application of higher-order heat flux model for predicting turbulent methane-air combustion." Thermal Science, no. 00 (2019): 415. http://dx.doi.org/10.2298/tsci181110415e.

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The present study addresses a new effort to improve the prediction of turbulent heat transfer and NO emission in non-premixed methane-air combustion. In this regard, a symmetric combustion chamber in a stoichiometric condition is numerically simulated using the Reynolds averaged Navier-Stokes equations. The Realizable k-? model and Discreate Ordinate are applied for modeling turbulence and radiation, respectively. Also, the eddy dissipation model is adopted for predicting the turbulent chemical reaction rate. Zeldovich mechanism is applied for estimating the NO emission. Higher-order generaliz

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28

Lipatnikov, Andrei N., and Vladimir A. Sabelnikov. "Karlovitz Numbers and Premixed Turbulent Combustion Regimes for Complex-Chemistry Flames." Energies 15, no. 16 (2022): 5840. http://dx.doi.org/10.3390/en15165840.

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The structure of premixed turbulent flames and governing physical mechanisms of the influence of turbulence on premixed burning are often discussed by invoking combustion regime diagrams. In the majority of such diagrams, boundaries of three combustion regimes associated with (i) flame preheat zones broadened locally by turbulent eddies, (ii) reaction zones broadened locally by turbulent eddies, and (iii) local extinction are based on a Karlovitz number Ka, with differently defined Ka being used to demarcate different combustion regimes. The present paper aims to overview different definitions

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29

Pan, J. C., W. J. Schmoll, and D. R. Ballal. "Turbulent Combustion Properties Behind a Confined Conical Stabilizer." Journal of Engineering for Gas Turbines and Power 114, no. 1 (1992): 33–38. http://dx.doi.org/10.1115/1.2906304.

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Turbulence properties were investigated in and around the recirculation zone produced by a 45 deg conical flame stabilizer of 25 percent blockage ratio confined in a pipe supplied with a turbulent premixed methane-air mixture at a Reynolds number of 5.7×104. A three-component LDA system was used for measuring mean velocities, turbulence intensities, Reynolds stresses, skewness, kurtosis, and turbulent kinetic energy. It was found that wall confinement elongates the recirculation zone by accelerating the flow and narrows it by preventing mean streamline curvature. For confined flames, turbulenc

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30

Madia, M., G. Cicalese, and L. Dalseno. "Hydrogen, methane and one of their fuel blends combustion: CFD analysis and numerical-experimental comparisons of fixed and mobile applications." Journal of Physics: Conference Series 2648, no. 1 (2023): 012080. http://dx.doi.org/10.1088/1742-6596/2648/1/012080.

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Abstract The capabilities of Computational Fluid Dynamics (CFD) coupled with detailed chemistry simulations are examined in both steady jet diffusion flames and in an internal combustion engine case fuelled with hydrogen. Different approaches to turbulence-chemistry interaction such as the “Laminar Flame Concept” the “Eddy Dissipation Concept” and the “Turbulent Flame Speed Closure” are considered and tested. The results are compared with the experimental data available. Concerning the jet diffusion flames, the combustion processes of hydrogen, methane and one of their fuel blends are investig

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31

Song, Ruitao, Gerald Gentz, Guoming Zhu, Elisa Toulson, and Harald Schock. "A control-oriented model of turbulent jet ignition combustion in a rapid compression machine." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 231, no. 10 (2016): 1315–25. http://dx.doi.org/10.1177/0954407016670303.

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Turbulent jet ignition combustion is a promising concept for achieving high thermal efficiency and low NOx (nitrogen oxides) emissions. A control-oriented turbulent jet ignition combustion model with satisfactory accuracy and low computational effort is usually a necessity for optimizing the turbulent jet ignition combustion system and developing the associated model-based turbulent jet ignition control strategies. This article presents a control-oriented turbulent jet ignition combustion model developed for a rapid compression machine configured for turbulent jet ignition combustion. A one-zo

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32

Gerke, Udo, and Konstantinos Boulouchos. "Three-dimensional computational fluid dynamics simulation of hydrogen engines using a turbulent flame speed closure combustion model." International Journal of Engine Research 13, no. 5 (2012): 464–81. http://dx.doi.org/10.1177/1468087412438796.

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The mixture formation and combustion process of a hydrogen direct-injection internal combustion engine is computed using a modified version of a commercial three-dimensional computational fluid dynamics code. The aim of the work is the evaluation of hydrogen laminar flame speed correlations and turbulent flame speed closures with respect to combustion of premixed and stratified mixtures at various levels of air-to-fuel equivalence ratio. Heat-release rates derived from in-cylinder pressure traces are used for the validation of the combustion simulations. A turbulent combustion model with closu

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33

Zimont, V. L. "Gas premixed combustion at high turbulence. Turbulent flame closure combustion model." Experimental Thermal and Fluid Science 21, no. 1-3 (2000): 179–86. http://dx.doi.org/10.1016/s0894-1777(99)00069-2.

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34

Krishnan, Abin, R. I. Sujith, Norbert Marwan, and Jürgen Kurths. "On the emergence of large clusters of acoustic power sources at the onset of thermoacoustic instability in a turbulent combustor." Journal of Fluid Mechanics 874 (July 9, 2019): 455–82. http://dx.doi.org/10.1017/jfm.2019.429.

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In turbulent combustors, the transition from stable combustion (i.e. combustion noise) to thermoacoustic instability occurs via intermittency. During stable combustion, the acoustic power production happens in a spatially incoherent manner. In contrast, during thermoacoustic instability, the acoustic power production happens in a spatially coherent manner. In the present study, we investigate the spatiotemporal dynamics of acoustic power sources during the intermittency route to thermoacoustic instability using complex network theory. To that end, we perform simultaneous acoustic pressure meas

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Pekkan, K., and M. R. Nalim. "Two-Dimensional Flow and NOx Emissions in Deflagrative Internal Combustion Wave Rotor Configurations." Journal of Engineering for Gas Turbines and Power 125, no. 3 (2003): 720–33. http://dx.doi.org/10.1115/1.1586315.

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A wave rotor is proposed for use as a constant volume combustor. A novel design feature is investigated as a remedy for hot gas leakage, premature ignition, and pollutant emissions that are possible in this class of unsteady machines. The base geometry involves fuel injection partitions that allow stratification of fuel/oxidizer mixtures in the wave rotor channel radially, enabling pilot ignition of overall lean mixture for low NOx combustion. In this study, available turbulent combustion models are applied to simulate approximately constant volume combustion of propane and resulting transient

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36

Rutkuniene, Zivile. "LES modeling gas particle dispersion and thermal characteristics in a reacting turbulent low." Physical Sciences and Technology 11, no. 1-2 (2024): 76–84. http://dx.doi.org/10.26577/phst2024v11i1a9.

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This paper presents the results of a 3D computer simulation of the combustion processes of gas particles (methane) in turbulent flow by applying numerical methods for calculating complex turbulent flows. The numerical model for calculating turbulent reacting flow is based on the filtered equations of conservation of mass, momentum, and internal energy using a spatial filter for calculating and modeling complex vortex structures. Aerodynamic, temperature and thermal characteristics of the flow were obtained based on the study on the influence of the Sauter mean radius of methane particles on it

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Mahammedi, Abdelkder, Naas Toufik Tayeb, D. Medjahed, and Telha Mostefa. "Numerical Modeling of Turbulent Biogas Combustion." All Sciences Abstracts 1, no. 2 (2023): 4. http://dx.doi.org/10.59287/as-abstracts.1194.

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The primary purpose of this research is to investigate the combustion properties of three different types of biogas using a 300 KW BERL combustor. Biogas is a renewable type of this fossil fuel; it is an intelligent fuel that offers an incredibly environmentally beneficial alternative to existing fuels.In order to study the impact of the biogas compositions on the flow field prediction, we perform the calculation using the FLUENT code, which has been used to present the numerical modeling of turbulent diffusion flames by using the realizable k-–ε model of turbulent flow interacting with a two-

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38

Шайкин, А. П., та И. Р. Галиев. "О связи ширины зоны турбулентного горения с составом топлива, давлением, скоростью распространения и электропроводностью пламени". Журнал технической физики 90, № 7 (2020): 1064. http://dx.doi.org/10.21883/jtf.2020.07.49437.65-19.

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The results of an experimental study of the relationship between the width turbulent combustion zone (TCZ) and composition of the composite fuel (hythane), the maximum pressure in combustion chamber of variable volume, the propagation velocity and electrical conductivity of the turbulent flame are presented. It was revealed that the width TCZ has a characteristic dependence on the composition of hythane. It was experimentally found that, despite a change coefficient of excess air, hydrogen concentration in the fuel, turbulence intensity and type of fuel (hythane and gasoline), the dependences

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Sehole, Hafiz Ali Haider, Ghazanfar Mehdi, Rizwan Riaz, and Adnan Maqsood. "Investigation of Sustainable Combustion Processes of the Industrial Gas Turbine Injector." Processes 13, no. 4 (2025): 960. https://doi.org/10.3390/pr13040960.

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This study investigates the combustion dynamics of methane in a dual swirl combustor, focusing on improving combustion efficiency and understanding flow features. Methane, as a conventional fuel, offers high energy content and relatively low carbon emissions compared to other hydrocarbons, making it a promising choice for sustainable energy solutions. Accurate numerical models are essential for the optimization of combustion processes, particularly in the design of combustion engines utilizing methane. In this work, we employ a partially premixed combustion model based on a mixture fraction an

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40

Benim, Ali Cemal, Sohail Iqbal, Franz Joos, and Alexander Wiedermann. "Numerical Analysis of Turbulent Combustion in a Model Swirl Gas Turbine Combustor." Journal of Combustion 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/2572035.

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Turbulent reacting flows in a generic swirl gas turbine combustor are investigated numerically. Turbulence is modelled by a URANS formulation in combination with the SST turbulence model, as the basic modelling approach. For comparison, URANS is applied also in combination with the RSM turbulence model to one of the investigated cases. For this case, LES is also used for turbulence modelling. For modelling turbulence-chemistry interaction, a laminar flamelet model is used, which is based on the mixture fraction and the reaction progress variable. This model is implemented in the open source CF

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James, S., M. S. Anand, M. K. Razdan, and S. B. Pope. "In Situ Detailed Chemistry Calculations in Combustor Flow Analyses." Journal of Engineering for Gas Turbines and Power 123, no. 4 (1999): 747–56. http://dx.doi.org/10.1115/1.1384878.

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In the numerical simulation of turbulent reacting flows, the high computational cost of integrating the reaction equations precludes the inclusion of detailed chemistry schemes, therefore reduced reaction mechanisms have been the more popular route for describing combustion chemistry, albeit at the loss of generality. The in situ adaptive tabulation scheme (ISAT) has significantly alleviated this problem by facilitating the efficient integration of the reaction equations via a unique combination of direct integration and dynamic creation of a look-up table, thus allowing for the implementation

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42

KATSUKI, Masashi, Yukio MIZUTANI, Toshihiko YASUDA, and Tetsuyuki YOSHIDA. "Turbulence and Mixing in Turbulent Premixed Flames. 3rd Report. Turbulent Combustion Model." Transactions of the Japan Society of Mechanical Engineers Series B 58, no. 551 (1992): 2261–67. http://dx.doi.org/10.1299/kikaib.58.2261.

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Xu, Guoqing, Yuri Martin Wright, Michele Schiliro, and Konstantinos Boulouchos. "Characterization of combustion in a gas engine ignited using a small un-scavenged pre-chamber." International Journal of Engine Research 21, no. 7 (2018): 1085–106. http://dx.doi.org/10.1177/1468087418798918.

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Prechamber ignition technology receives increasing attention due to its considerable improvement on engine combustion efficiency and stability. However, fundamental knowledge concerning flame propagation inside the pre-chamber and jet formation in the main chamber is still quite scarce. In this study, a small (<0.5% VTDC) un-scavenged pre-chamber was tested in a medium size gas engine with pressure transducers installed in both pre- and main chamber. Three-dimensional computational reactive fluid dynamics Reynolds-averaged Navier–Stokes simulations were carried out using a level-set combust

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44

Toman, Rastislav, and Jan Macek. "Evaluation of the Predictive Capabilities of a Phenomenological Combustion Model for Natural Gas SI Engine." Journal of Middle European Construction and Design of Cars 15, no. 2 (2017): 37–48. http://dx.doi.org/10.1515/mecdc-2017-0007.

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Abstract The current study evaluates the predictive capabilities of a new phenomenological combustion model, available as a part of the GT-Suite software package. It is comprised of two main sub-models: 0D model of in-cylinder flow and turbulence, and turbulent SI combustion model. The 0D in-cylinder flow model (EngCylFlow) uses a combined K-k-ε kinetic energy cascade approach to predict the evolution of the in-cylinder charge motion and turbulence, where K and k are the mean and turbulent kinetic energies, and ε is the turbulent dissipation rate. The subsequent turbulent combustion model (Eng

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45

Gilmanov, Anvar, Ponnuthurai Gokulakrishnan, and Michael S. Klassen. "Development and Validation of a Compressible Reacting Gas-Dynamic Flow Solver for Supersonic Combustion." Dynamics 4, no. 1 (2024): 135–56. http://dx.doi.org/10.3390/dynamics4010008.

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An approach based on the OpenFOAM library has been developed to solve a high-speed, multicomponent mixture of a reacting, compressible flow. This work presents comprehensive validation of the newly developed solver, called compressibleCentralReactingFoam, with different supersonic flows, including shocks, expansion waves, and turbulence–combustion interaction. The comparisons of the simulation results with experimental and computational data confirm the fidelity of this solver for problems involving multicomponent high-speed reactive flows. The gas dynamics of turbulence–chemistry interaction

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YAMAMOTO, Kazuhiro, Satoshi INOUE, Hiroshi YAMASHITA, Daisuke SHIMOKURI, Satoru ISHIZUKA, and Yoshiaki ONUMA. "PIV Measurement and Turbulence Scale in Turbulent Combustion." Transactions of the Japan Society of Mechanical Engineers Series B 71, no. 711 (2005): 2741–47. http://dx.doi.org/10.1299/kikaib.71.2741.

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Yamamoto, Kazuhiro, Satoshi Inoue, Hiroshi Yamashita, Daisuke Shimokuri, Satoru Ishizuka, and Yoshiaki Onuma. "PIV measurement and turbulence scale in turbulent combustion." Heat Transfer—Asian Research 35, no. 7 (2006): 501–12. http://dx.doi.org/10.1002/htj.20129.

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Fooladgar, Ehsan, and C. K. Chan. "Large Eddy Simulation of a Swirl-Stabilized Pilot Combustor from Conventional to Flameless Mode." Journal of Combustion 2016 (2016): 1–16. http://dx.doi.org/10.1155/2016/8261560.

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This paper investigates flame and flow structure of a swirl-stabilized pilot combustor in conventional, high temperature, and flameless modes by means of a partially stirred reactor combustion model to provide a better insight into designing lean premixed combustion devices with preheating system. Finite rate chemistry combustion model with one step tuned mechanism and large eddy simulation is used to numerically simulate six cases in these modes. Results show that moving towards high temperature mode by increasing the preheating level, the combustor is prone to formation of thermalNOxwith hig

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Humphrey, Luke J., Benjamin Emerson, and Tim C. Lieuwen. "Premixed turbulent flame speed in an oscillating disturbance field." Journal of Fluid Mechanics 835 (November 27, 2017): 102–30. http://dx.doi.org/10.1017/jfm.2017.728.

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This paper considers the manner in which turbulent premixed flames respond to a superposition of turbulent and narrowband disturbances. This is an important fundamental problem that arises in most combustion applications, as turbulent flames exist in hydrodynamically unstable flow fields and/or in confined systems with narrowband acoustic waves. This paper presents the first measurements of the sensitivity of the turbulent displacement speed to harmonically oscillating flame wrinkles. The flame is attached to a transversely oscillating, heated wire, resulting in the introduction of coherent, c

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Young, Frederick W., Hazem S. A. M. Awad, Khalil Abo-Amsha, Umair Ahmed, and Nilanjan Chakraborty. "A Comparison between Statistical Behaviours of Scalar Dissipation Rate between Homogeneous MILD Combustion and Premixed Turbulent Flames." Energies 15, no. 23 (2022): 9188. http://dx.doi.org/10.3390/en15239188.

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Three-dimensional Direct Numerical Simulations (DNS) data has been utilised to analyse statistical behaviours of the scalar dissipation rate (SDR) and its transport for homogeneous methane-air mixture turbulent Moderate or Intense Low oxygen Dilution (MILD) combustion for different O2 dilution levels and turbulence intensities for different reaction progress variable definitions. Additional DNS has been conducted for turbulent premixed flames and passive scalar mixing for the purpose of comparison with the SDR statistics of the homogeneous mixture MILD combustion with that in conventional prem

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