Compact flame-holders for afterburners are an increasing requirement for modern aero engines. However, flame-holder design is non-trivial since high inlet temperatures, velocities, and elaborate structures induce complex turbulence, combustion, and spray coupling in modern afterburners. In this work, the LES-pdf and stochastic fields-Lagrangian particle spray methods are used to investigate methane and aviation kerosene combustion structures formed by new-type concave flame-holders. The flow pattern, combustion mode, and flame structure of gaseous and liquid fuel around a concave flame-holder are analyzed, discussed, and compared with experimental results. Results reveal that the flame stability of a concave flame-holder is better than that of the non-concave one. Furthermore, when using liquid fuel, the concave flame-holder forms a stable and compact flame. These results suggest concave flame-holders are a promising design for compact afterburners.
WANG Fang
,
WANG Yunfan
,
WEI Guanyi
,
LIU Denghuan
,
JIN Jie
,
JONES P. William
. Flame Structure of Methane and Kerosene Combustion with a Compact Concave Flame-Holder using the LES-pdf Method[J]. Journal of Thermal Science, 2024
, 33(1)
: 222
-234
.
DOI: 10.1007/s11630-023-1898-4
[1] Sun Y., Zhang Z., Li J., et al., Design and numerical research of integrated rear frame and afterburner. Journal of Aeronautical Science and Technology, 2011, 4: 71–74. (in Chinese)
[2] Wadia A.R., James F.D., F110-GE-129 EFE—enhanced power through low-risk derivative technology. Turbo Expo: Power for Land, Sea, and Air, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery. Munich, Germany. May 8–11, 2000. V001T01A019. ASME. DOI: 10.1115/2000-GT-0578.
[3] Liang C., Yang D., Liu H., Present and future development of advanced second burner for aeroengine. Journal of Aeroengine, 2012, 38(5): 1–5.
[4] Zhang X., Sun Y., Liu T., Summary of advanced afterburner design technology. Journal of Aeroengine, 2014, 40(2): 24–30.
[5] Han M., Xu Q., Han X., et al., Dynamics of stratified swirl flame near lean blow out. Propulsion and Power Research, 2021, 10(3): 235–246.
[6] Ayed A.H., Kusterer K., Funke H.W., et al., Experimental and numerical investigations of the dry-low-NOx hydrogen micromix combustion chamber of an industrial gas turbine. Propulsion and Power Research, 2015, 4(3): 123–131.
[7] Jones W.P., Navarro-Martinez S., Study of hydrogen auto-ignition in a turbulent air co-flow using a large eddy simulation approach. Computers and Fluids, 2007, 37: 802–808.
[8] Bini M., Jones W.P., Large eddy simulation of particle-laden turbulent flows. Journal of Fluid Mechanics, 2008, 614: 207–252.
[9] Gong Y., Jones W.P., Marquis A.J., Study of a premixed turbulent counterflow flame with a large eddy simulation method. Flow, Turbulence and Combustion, 2021, 106(4): 1379–1398.
[10] Jones W.P., Prasad V.N., Large eddy simulation of the Sandia flame series (d–f) using the eulerian stochastic field method. Combustion and Flame, 2010, 157(9): 1621–1636.
[11] Popov P.P., Pope S.B., Large eddy simulation/probability density function simulations of bluff body stabilized flames. Combustion and Flame, 2014, 161(12): 3100–3133.
[12] Jones W.P., Marquis A.J., Wang F., Large eddy simulation of a premixed propane turbulent bluff body flame using the Eulerian stochastic field method. Fuel, 2015, 140: 514–525.
[13] Hodzic E., Jangi M., Szasz R.Z., et al., Large eddy simulation of bluff body flames close to blow-off using an Eulerian stochastic field method. Combustion and Flame, 2017, 181: 1–15.
[14] Brauner T., Jones W.P., Marquis A.J., LES of the Cambridge stratified swirl burner using a sub-grid pdf approach. Flow, Turbulence and Combustion, 2016, 96(4): 965–985.
[15] Jones W.P., Marquis A.J., Vogiatzaki K., Large-eddy simulation of spray combustion in a gas turbine combustor. Combustion and Flame, 2014, 161(1): 222–239.
[16] Gallot-Lavallee S., Jones W.P., Marquis A.J., Large eddy simulation of an ethanol spray flame with secondary droplet breakup. Flow, Turbulence and Combustion, 2021, 107(3): 709–743.
[17] Gardiner C.W., Handbook of stochastic methods. For Physics, Chemistry and the Natural Science, volume 13 of Springer Series Synergetics. Springer, 1983.
[18] Jones W.P., Lindstedt R.P., Global reaction schemes for hydrocarbon combustion. Combustion and Flame, 1988, 73(3): 233–249.
[19] Vukadinovic V., Habisreuther P., Zarzalis N., Influence of pressure and temperature on laminar burning velocity and markstein number of kerosene jet a-1: Experimental and numerical study. Fuel, 2013, 111: 401–410.
[20] Jones W.P., Kerosene kinetics. Personal Communication, November 2018.
[21] Wang H., Design and research on new-type flame stabilizer. Technical report, Beihang University, Beijing, China, 2012.
[22] Zhang R., Liu Y., Xie Y., Effects of fuel injection on flame propagation of cavity-based strut flame-holder. Journal of Propulsion Technology, 2017, 38(9): 2046– 2054.
[23] Ranz W., Marshall W., Evaporation from drops – part (i) and part (ii). Chemical Engineering Progress, 1952, pp. 141–146,173–180.
[24] Liu G., Liu Y., Xie Y., Effect of cavity on combustion characteristics of integrated strut flame stabilizer. Journal of Aerospace Power, 2018, 33(8): 1838–1844.
[25] Wang F., Liu R., Dou L., et al., A dual timescale model for micro-mixing and its application in LES-TPDF simulations of turbulent nonpremixed flames. Chinese Journal of Aeronautics, 2019, 32(4): 875–887.
