Present study focuses on studying the oscillatory
behavior of jet diffusion flames. At a particular jet exit velocity, the
flames are seen to exhibit natural flickering. Initially the flickering
process is not continuous. In this transition region as well as in the
continuous flickering regime, the flickering displays multiple
frequency oscillations. The response of the flame to the exit velocity
profile of the burner is also studied using three types of burners. The
entire range of natural flickering is investigated by capturing high
speed digital images and processing them using a MATLAB code.
[1] Albers BW, Agrawal AK. Schlieren analysis of an oscillating gas-jet
diffusion flame. Combust Flame 1999; 119:84-94.
[2] Lingens A, Neemann K, Meyer J, Schreiber M. Instability of diffusion
flames. Proc Combust Inst 1996; 26:1053-61.
[3] D. S. Chamberlin and A. Rose, First Symposium on Combustion, Ind.
Eng. Chem. 20, 1013-1016 (1928).
[4] Kimura, Tenth Symposium (International) on Combustion, the
Combustion Institute, Pittsburgh, Pa., 1965, pp. 1295-1300.
[5] Jizhao LI, Yang ZHANG, Fuel variability effect on flickering frequency
of diffusion Flames. Front. Energy Power Eng. China 2009, 3(2): 134-
140.
[6] Hamidreza Gohari Darabkhani & Yang Zhang, Methane Diffusion
Flame Dynamics at Elevated Pressures. Combust. Sci. and Tech., 182:
231-251, 2010.
[7] A. J. GRANT and J. M. JONES, Low-Frequency Diffusion Flame
Oscillations, Combustion and Flame, 25, 153-160 (1975).
[8] Buckmaster l; Peters N (1986) The infinite candle and its stability-a
paradigm for flickering diffusion flame. Twenty-First Syrnp. (Intern.) on
Combustion/The Combustion Institute, 1829-1836.
[9] T. MAXWORTHY, The flickering candle: transition to a global
oscillation in a thermal plume. J. Fluid Mech. (1999), vol. 390, pp.
297{323}.
[10] W.R. Quinn, Upstream nozzle shaping effects on near field flow in
round turbulent free jets, European Journal of Mechanics B/Fluids 25
(2006) 279-(301).
[1] Albers BW, Agrawal AK. Schlieren analysis of an oscillating gas-jet
diffusion flame. Combust Flame 1999; 119:84-94.
[2] Lingens A, Neemann K, Meyer J, Schreiber M. Instability of diffusion
flames. Proc Combust Inst 1996; 26:1053-61.
[3] D. S. Chamberlin and A. Rose, First Symposium on Combustion, Ind.
Eng. Chem. 20, 1013-1016 (1928).
[4] Kimura, Tenth Symposium (International) on Combustion, the
Combustion Institute, Pittsburgh, Pa., 1965, pp. 1295-1300.
[5] Jizhao LI, Yang ZHANG, Fuel variability effect on flickering frequency
of diffusion Flames. Front. Energy Power Eng. China 2009, 3(2): 134-
140.
[6] Hamidreza Gohari Darabkhani & Yang Zhang, Methane Diffusion
Flame Dynamics at Elevated Pressures. Combust. Sci. and Tech., 182:
231-251, 2010.
[7] A. J. GRANT and J. M. JONES, Low-Frequency Diffusion Flame
Oscillations, Combustion and Flame, 25, 153-160 (1975).
[8] Buckmaster l; Peters N (1986) The infinite candle and its stability-a
paradigm for flickering diffusion flame. Twenty-First Syrnp. (Intern.) on
Combustion/The Combustion Institute, 1829-1836.
[9] T. MAXWORTHY, The flickering candle: transition to a global
oscillation in a thermal plume. J. Fluid Mech. (1999), vol. 390, pp.
297{323}.
[10] W.R. Quinn, Upstream nozzle shaping effects on near field flow in
round turbulent free jets, European Journal of Mechanics B/Fluids 25
(2006) 279-(301).
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:54966", author = "K. R. V. Manikantachari and Vasudevan Raghavan and K. Srinivasan", title = "Natural Flickering of Methane Diffusion Flames", abstract = "Present study focuses on studying the oscillatory
behavior of jet diffusion flames. At a particular jet exit velocity, the
flames are seen to exhibit natural flickering. Initially the flickering
process is not continuous. In this transition region as well as in the
continuous flickering regime, the flickering displays multiple
frequency oscillations. The response of the flame to the exit velocity
profile of the burner is also studied using three types of burners. The
entire range of natural flickering is investigated by capturing high
speed digital images and processing them using a MATLAB code.", keywords = "Diffusion flames, Natural flickering, flickering frequency, intermittent flickering", volume = "5", number = "11", pages = "2295-6", }