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1

FURUKAWA, JUNICHI, YOSHIKI NOGUCHI, TOSHISUKE HIRANO, and FORMAN A. WILLIAMS. "Anisotropic enhancement of turbulence in large-scale, low-intensity turbulent premixed propane–air flames." Journal of Fluid Mechanics 462 (July 10, 2002): 209–43. http://dx.doi.org/10.1017/s0022112002008650.

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The density change across premixed flames propagating in turbulent flows modifies the turbulence. The nature of that modification depends on the regime of turbulent combustion, the burner design, the orientation of the turbulent flame and the position within the flame. The present study addresses statistically stationary turbulent combustion in the flame-sheet regime, in which the laminar-flame thickness is less than the Kolmogorov scale, for flames stabilized on a vertically oriented cylindrical burner having fully developed upward turbulent pipe flow upstream from the exit. Under these condi
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2

Ashurst, W. T., and F. A. Williams. "Vortex modification of diffusion flamelets." Symposium (International) on Combustion 23, no. 1 (1991): 543–50. http://dx.doi.org/10.1016/s0082-0784(06)80301-2.

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3

Hiestermann, Marian, Matthias Haeringer, Marcel Dèsor, and Wolfgang Polifke. "Comparison of non-premixed and premixed flamelets for ultra WET aero engine combustion conditions." Journal of the Global Power and Propulsion Society 8 (October 8, 2024): 370–89. http://dx.doi.org/10.33737/jgpps/188264.

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The Water-Enhanced Turbofan (WET) is a future concept for aero engine applications being developed by MTU Aero Engines AG. Steam is injected into the combustion chamber to reduce temperature peaks and emission of pollutants. Depending on the steam content, the combustion process is modified. To analyze the effect of steam on the reaction kinetics and the temperature, detailed chemistry has to be employed. By comparing laminar flame speed and mole fraction distribution across the flame front, an appropriate chemical mechanism for the considered operating conditions including high steam loads wa
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4

Josephson, Alexander J., Troy M. Holland, Sara Brambilla, Michael J. Brown, and Rodman R. Linn. "Predicting Emission Source Terms in a Reduced-Order Fire Spread Model—Part 1: Particulate Emissions." Fire 3, no. 1 (2020): 4. http://dx.doi.org/10.3390/fire3010004.

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A simple, easy-to-evaluate, surrogate model was developed for predicting the particle emission source term in wildfire simulations. In creating this model, we conceptualized wildfire as a series of flamelets, and using this concept of flamelets, we developed a one-dimensional model to represent the structure of these flamelets which then could be used to simulate the evolution of a single flamelet. A previously developed soot model was executed within this flamelet simulation which could produce a particle size distribution. Executing this flamelet simulation 1200 times with varying conditions
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5

Bray, Ken. "Laminar Flamelets in Turbulent Combustion Modeling." Combustion Science and Technology 188, no. 9 (2016): 1372–75. http://dx.doi.org/10.1080/00102202.2016.1195819.

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6

Gouldin, F. C., K. N. C. Bray, and J. Y. Chen. "Chemical closure model for fractal flamelets." Combustion and Flame 77, no. 3-4 (1989): 241–59. http://dx.doi.org/10.1016/0010-2180(89)90132-6.

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7

Krass, B. J., B. W. Zellmer, I. K. Puri, and S. Singh. "Application of Flamelet Profiles to Flame Structure in Practical Burners." Journal of Energy Resources Technology 121, no. 1 (1999): 66–72. http://dx.doi.org/10.1115/1.2795062.

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Partial premixing can be induced by design in combustors, occurs inadvertently during turbulent nonpremixed combustion, or arises through inadequate fuel-air mixing. Therefore, it is of interest to investigate the effect of partial premixing in a burner that mimics conditions that might occur under practice. In this investigation, we report on similitude of partially premixed flames encountered in practical complex and multi-dimensional burners with simpler, less complex flames, such as counterflow flamelets. A burner is designed to simulate the more complex multi-dimensional flows that might
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8

Olson, S. L., F. J. Miller, and I. S. Wichman. "Characterizing fingering flamelets using the logistic model." Combustion Theory and Modelling 10, no. 2 (2006): 323–47. http://dx.doi.org/10.1080/13647830600565446.

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9

Law, C. K., and C. J. Sung. "Structure, aerodynamics, and geometry of premixed flamelets." Progress in Energy and Combustion Science 26, no. 4-6 (2000): 459–505. http://dx.doi.org/10.1016/s0360-1285(00)00018-6.

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10

BYCHKOV, VITALIY, MICHAEL A. LIBERMAN, and RAYMOND REINMANN. "VELOCITY OF TURBULENT FLAMELETS OF FINITE THICKNESS." Combustion Science and Technology 168, no. 1 (2001): 113–29. http://dx.doi.org/10.1080/00102200108907833.

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11

Gao, Yushan, Wang Han, Zheng Chen, Qingfei Fu, and Lijun Yang. "Effects of radiation, curvature, and preferential diffusion on the extinction of laminar non-premixed flames." AIP Advances 12, no. 11 (2022): 115118. http://dx.doi.org/10.1063/5.0121889.

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The combined effects of radiative heat loss, curvature, and preferential diffusion on laminar non-premixed flames (or flamelets) are investigated in this work by using asymptotic analysis. A general theoretical description of flame temperature and extinction is derived for curved flames with non-unity Lewis numbers and radiative heat loss. Special attention is paid to the effects of curvature and radiative heat loss on the flammability limits. The results show that (1) a curved flamelet always has two extinction limits: one is the kinetic extinction limit, and the other is the curvature-induce
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12

Lee, Sung-Taick, Edward W. Price, and Robert K. Signan. "Effect of multidimensional flamelets in composite propellant combustion." Journal of Propulsion and Power 10, no. 6 (1994): 761–68. http://dx.doi.org/10.2514/3.23813.

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13

Price, Edward W. "Effect of multidimensional flamelets in composite propellant combustion." Journal of Propulsion and Power 11, no. 4 (1995): 717–29. http://dx.doi.org/10.2514/3.23897.

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14

Bychkov, Vitaliy. "Velocity of Turbulent Flamelets with Realistic Fuel Expansion." Physical Review Letters 84, no. 26 (2000): 6122–25. http://dx.doi.org/10.1103/physrevlett.84.6122.

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15

Gouldin, F. C., S. M. Hilton, and T. Lamb. "Experimental evaluation of the fractal geometry of flamelets." Symposium (International) on Combustion 22, no. 1 (1989): 541–50. http://dx.doi.org/10.1016/s0082-0784(89)80061-x.

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16

Matsuoka, Tsuneyoshi, Kentaro Nakashima, Yuji Nakamura, and Susumu Noda. "Appearance of flamelets spreading over thermally thick fuel." Proceedings of the Combustion Institute 36, no. 2 (2017): 3019–26. http://dx.doi.org/10.1016/j.proci.2016.07.112.

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17

Chen, Xiaotong, Zhanbin Lu, and Shuangfeng Wang. "Near limit premixed flamelets in Hele-Shaw cells." Proceedings of the Combustion Institute 36, no. 1 (2017): 1585–93. http://dx.doi.org/10.1016/j.proci.2016.08.059.

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18

Kurata, Osamu. "X-shaped flames consisting of rotating slant flamelets." Combustion and Flame 152, no. 1-2 (2008): 206–17. http://dx.doi.org/10.1016/j.combustflame.2007.06.023.

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19

Barths, H., C. Hasse, and N. Peters. "Computational fluid dynamics modelling of non-premixed combustion in direct injection diesel engines." International Journal of Engine Research 1, no. 3 (2000): 249–67. http://dx.doi.org/10.1243/1468087001545164.

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An overview over flamelet modelling for turbulent non-premixed combustion is given. A short review of previous contributions to simulations of direct injection (DI) diesel engine combustion using the representative interactive flamelet concept is presented. A surrogate fuel consisting of 70 per cent (liquid volume) n-decane and 30 per cent α-methyl-naphthalene is experimentally compared to real diesel fuel. The resemblance of their physical and chemical properties is shown to result in very similar combustion and pollutant formation for both fuels. In order to account for variations of the sca
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20

Hellwig, Wes, Xian Shi, and William A. Sirignano. "Vortex stretching of non-premixed, diluted hydrogen/oxygen flamelets." Combustion and Flame 273 (March 2025): 113900. https://doi.org/10.1016/j.combustflame.2024.113900.

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21

Langella, Ivan, and Nedunchezhian Swaminathan. "Unstrained and strained flamelets for LES of premixed combustion." Combustion Theory and Modelling 20, no. 3 (2016): 410–40. http://dx.doi.org/10.1080/13647830.2016.1140230.

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22

Peters, N. "Partially premixed diffusion flamelets in non-premixed turbulent combustion." Symposium (International) on Combustion 20, no. 1 (1985): 353–60. http://dx.doi.org/10.1016/s0082-0784(85)80521-x.

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23

Murayama, Motohide, and Tadao Takeno. "Fractal-like character of flamelets in turbulent premixed combustion." Symposium (International) on Combustion 22, no. 1 (1989): 551–59. http://dx.doi.org/10.1016/s0082-0784(89)80062-1.

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24

Agathou, Maria S., and Dimitrios C. Kyritsis. "Experimental investigation of bio-butanol laminar non-premixed flamelets." Applied Energy 93 (May 2012): 296–304. http://dx.doi.org/10.1016/j.apenergy.2011.12.060.

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25

Burluka, A. A., M. A. Gorokhovski, and R. Borghi. "Statistical model of turbulent premixed combustion with interacting flamelets." Combustion and Flame 109, no. 1-2 (1997): 173–87. http://dx.doi.org/10.1016/s0010-2180(96)00147-2.

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26

Furukawa, J. "Burning Velocities of Flamelets in a Turbulent Premixed Flame." Combustion and Flame 113, no. 4 (1998): 487–91. http://dx.doi.org/10.1016/s0010-2180(97)00239-3.

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27

Domingo, Pascale, Luc Vervisch, and Ken Bray. "Partially premixed flamelets in LES of nonpremixed turbulent combustion." Combustion Theory and Modelling 6, no. 4 (2002): 529–51. http://dx.doi.org/10.1088/1364-7830/6/4/301.

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28

Card, J. M., Wm T. Ashurst, and F. A. Williams. "Modification of methane-air nonpremixed flamelets by vortical interactions." Combustion and Flame 97, no. 1 (1994): 48–60. http://dx.doi.org/10.1016/0010-2180(94)90115-5.

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29

MENEVEAU, C., and T. POINSOT. "Stretching and quenching of flamelets in premixed turbulent combustion." Combustion and Flame 86, no. 4 (1991): 311–32. http://dx.doi.org/10.1016/0010-2180(91)90126-v.

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30

Riesmeier, E., S. Honnet, and N. Peters. "Flamelet Modeling of Pollutant Formation in a Gas Turbine Combustion Chamber Using Detailed Chemistry for a Kerosene Model Fuel." Journal of Engineering for Gas Turbines and Power 126, no. 4 (2004): 899–905. http://dx.doi.org/10.1115/1.1787507.

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Combustion and pollutant formation in a gas turbine combustion chamber is investigated numerically using the Eulerian particle flamelet model. The code solving the unsteady flamelet equations is coupled to an unstructured computational fluid dynamics (CFD) code providing solutions for the flow and mixture field from which the flamelet parameters can be extracted. Flamelets are initialized in the fuel-rich region close to the fuel injectors of the combustor. They are represented by marker particles that are convected through the flow field. Each flamelet takes a different pathway through the co
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31

Ghenaï, Chaouki, Christian Chauveau, and Iskender Gökalp. "Spatial and temporal dynamics of flamelets in turbulent premixed flames." Symposium (International) on Combustion 26, no. 1 (1996): 331–37. http://dx.doi.org/10.1016/s0082-0784(96)80233-5.

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32

Shamim, Tariq, and Arvind Atreya. "The effect of time-dependent partial premixing in radiating flamelets." Combustion and Flame 123, no. 1-2 (2000): 241–51. http://dx.doi.org/10.1016/s0010-2180(00)00143-7.

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33

Kolla, H., and N. Swaminathan. "Strained flamelets for turbulent premixed flames II: Laboratory flame results." Combustion and Flame 157, no. 7 (2010): 1274–89. http://dx.doi.org/10.1016/j.combustflame.2010.03.016.

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34

UEDA, TOSH IH ISA, and ROBERT K. CHENG. "Interaction of Jet Diffusion Flamelets with Grid-generated Co-flow Turbulence." Combustion Science and Technology 80, no. 1-3 (1991): 121–35. http://dx.doi.org/10.1080/00102209108951780.

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35

Margolis, R. S. Cant, K. N. C. Bray, L. W. Kostiuk, and B. Rogg. "Flow Divergence Effects in Strained Laminar Flamelets for Premixed Turbulent Combustion." Combustion Science and Technology 95, no. 1-6 (1993): 261–76. http://dx.doi.org/10.1080/00102209408935337.

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36

Sundaram, B., and A. Y. Klimenko. "A PDF approach to thin premixed flamelets using multiple mapping conditioning." Proceedings of the Combustion Institute 36, no. 2 (2017): 1937–45. http://dx.doi.org/10.1016/j.proci.2016.07.116.

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37

Klimenko, A. Y. "On the relation between the conditional moment closure and unsteady flamelets." Combustion Theory and Modelling 5, no. 3 (2001): 275–94. http://dx.doi.org/10.1088/1364-7830/5/3/302.

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38

WATANABE, H., R. KUROSE, S. HWANG, and F. AKAMATSU. "Characteristics of flamelets in spray flames formed in a laminar counterflow." Combustion and Flame 148, no. 4 (2007): 234–48. http://dx.doi.org/10.1016/j.combustflame.2006.09.006.

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39

Yanez, Jorge, Mike Kuznetsov, and Fernando Veiga-López. "On the velocity, size, and temperature of gaseous dendritic flames." Physics of Fluids 34, no. 11 (2022): 113601. http://dx.doi.org/10.1063/5.0118271.

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Dendritic combustion in Hele–Shaw cells is investigated qualitatively using a simplified one-dimensional thermo-diffusive model. Formulas for the velocity, size, and temperature of the flamelets are derived. The temperature and velocity of the flames increase for small radii to allow for their survival regardless of the activation energy. In addition, the results obtained with very large activation energy were compared with experimental results, finding that additional tests are required due to the strong influence of gravity on the velocity and size estimations. Conditions for the existence o
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40

Sabelnikov, V. A., A. N. Lipatnikov, S. Nishiki, and T. Hasegawa. "Investigation of the influence of combustion-induced thermal expansion on two-point turbulence statistics using conditioned structure functions." Journal of Fluid Mechanics 867 (March 20, 2019): 45–76. http://dx.doi.org/10.1017/jfm.2019.128.

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The second-order structure functions (SFs) of the velocity field, which characterize the velocity difference at two points, are widely used in research into non-reacting turbulent flows. In the present paper, the approach is extended in order to study the influence of combustion-induced thermal expansion on turbulent flow within a premixed flame brush. For this purpose, SFs conditioned to various combinations of mixture states at two different points (reactant–reactant, reactant–product, product–product, etc.) are introduced in the paper and a relevant exact transport equation is derived in th
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41

Kerkemeier, S. G., C. N. Markides, C. E. Frouzakis, and K. Boulouchos. "Direct numerical simulation of the autoignition of a hydrogen plume in a turbulent coflow of hot air." Journal of Fluid Mechanics 720 (February 27, 2013): 424–56. http://dx.doi.org/10.1017/jfm.2013.22.

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AbstractThe autoignition of an axisymmetric nitrogen-diluted hydrogen plume in a turbulent coflowing stream of high-temperature air was investigated in a laboratory-scale set-up using three-dimensional numerical simulations with detailed chemistry and transport. The plume was formed by releasing the fuel from an injector with bulk velocity equal to that of the surrounding air coflow. In the ‘random spots’ regime, autoignition appeared randomly in space and time in the form of scattered localized spots from which post-ignition flamelets propagated outwards in the presence of strong advection. A
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42

Davidovic, Marco, Tobias Falkenstein, Mathis Bode, et al. "LES ofn-Dodecane Spray Combustion Using a Multiple Representative Interactive Flamelets Model." Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 72, no. 5 (2017): 29. http://dx.doi.org/10.2516/ogst/2017019.

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43

Lipatnikov, A. N., V. A. Sabelnikov, S. Nishiki, and T. Hasegawa. "Combustion-induced local shear layers within premixed flamelets in weakly turbulent flows." Physics of Fluids 30, no. 8 (2018): 085101. http://dx.doi.org/10.1063/1.5040967.

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44

Kostiuk, L. W., and K. N. C. Bray. "Mean Effects of Stretch on Laminar Flamelets in a Premixed Turbulent Flame." Combustion Science and Technology 95, no. 1-6 (1993): 193–212. http://dx.doi.org/10.1080/00102209408935334.

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45

Barlow, R. S., and J. Y. Chen. "On transient flamelets and their relationship to turbulent methane-air jet flames." Symposium (International) on Combustion 24, no. 1 (1992): 231–37. http://dx.doi.org/10.1016/s0082-0784(06)80032-9.

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46

Rogg, B., F. Behrendt, and J. Warnatz. "Turbulent non-premixed combustion in partially premixed diffusion flamelets with detailed chemistry." Symposium (International) on Combustion 21, no. 1 (1988): 1533–41. http://dx.doi.org/10.1016/s0082-0784(88)80386-2.

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47

Barths, H., N. Peters, N. Brehm, A. Mack, M. Pfitzner, and V. Smiljanovski. "Simulation of pollutant formation in a gas-turbine combustor using unsteady flamelets." Symposium (International) on Combustion 27, no. 2 (1998): 1841–47. http://dx.doi.org/10.1016/s0082-0784(98)80026-x.

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48

Mercier, Renaud, Cédric Mehl, Benoît Fiorina, and Vincent Moureau. "Filtered Wrinkled Flamelets model for Large-Eddy Simulation of turbulent premixed combustion." Combustion and Flame 205 (July 2019): 93–108. http://dx.doi.org/10.1016/j.combustflame.2019.03.025.

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49

Furukawa, Junichi, Yasuko Yoshida, and Forman A. Williams. "Evolution of Gas Velocities Behind Flamelets in a Premixed Turbulent Bunsen Flame." Combustion Science and Technology 185, no. 4 (2013): 661–75. http://dx.doi.org/10.1080/00102202.2012.740104.

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50

Yeung, P. K., S. S. Girimaji, and S. B. Pope. "Straining and scalar dissipation on material surfaces in turbulence: Implications for flamelets." Combustion and Flame 79, no. 3-4 (1990): 340–65. http://dx.doi.org/10.1016/0010-2180(90)90145-h.

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