A staged injector developed by JAXA and fueled with kerosene is studied in a high-pressure combustion experiment. With a stable pilot fuel flow rate, the fuel flow rate in the main stage is progressively increased. A high-speed OH-planar laser-induced fluorescence (PLIF) system is used to record the flame motion at 10,000 fps. In the beginning of the recording, the flame behavior is dominated by relatively low-frequency rotation due to the swirling motion of the flow. These rotational motions then coexist with a thermo-acoustic instability around 475 Hz which increases the amplitude of the pressure fluctuations inside the chamber. Dynamic mode decomposition (DMD) analyses indicate that this instability is associated with a widening of the flame occurring when the pressure fluctuations are the highest, giving the instability a positive feedback. The instability frequency then abruptly switches to 500 Hz, while the mode shape remains the same. This frequency change is studied using time–frequency analysis to highlight a change in the feedback mechanism characterized by a modification of the time delay between pressure and heat release fluctuations.

References

References
1.
Correa
,
S. M.
,
1998
, “
Power Generation and Aeropropulsion Gas Turbines: From Combustion Science to Combustion Technology
,”
Symp. (Int.) Combust.
,
27
(
2
), pp.
1793
1807
.
2.
Candel
,
S.
,
2002
, “
Combustion Dynamics and Control: Progress and Challenges
,”
Proc. Combust. Inst.
,
29
(
1
), pp.
1
28
.
3.
Lieuwen
,
T. C.
, and
Yang
,
V.
,
2005
,
Combustion Instabilities in Gas Turbine Engines: Operational Experience, Fundamental Mechanisms, and Modeling
(Progress in Astronautics and Aeronautics, Vol. 210), American Institute of Aeronautics and Astronautics, Reston, VA.
4.
Lefebvre
,
A. H.
,
1995
, “
The Role of Fuel Preparation in Low-Emission Combustion
,”
ASME J. Eng. Gas Turbines Power
,
117
(
4
), pp.
617
654
.
5.
Kohse-Höinghaus
,
K.
,
Barlow
,
R. S.
,
Aldén
,
M.
, and
Wolfrum
,
J.
,
2005
, “
Combustion at the Focus: Laser Diagnostics and Control
,”
Proc. Combust. Inst.
,
30
(
1
), pp.
89
123
.
6.
Dhanuka
,
S. K.
,
Temme
,
J. E.
,
Driscoll
,
J. F.
, and
Mongia
,
H. C.
,
2009
, “
Vortex-Shedding and Mixing Layer Effects on Periodic Flashback in a Lean Premixed Prevaporized Gas Turbine Combustor
,”
Proc. Combust. Inst.
,
32
(
2
), pp.
2901
2908
.
7.
Dhanuka
,
S. K.
,
Temme
,
J. E.
, and
Driscoll
,
J. F.
,
2011
, “
Lean-Limit Combustion Instabilities of a Lean Premixed Prevaporized Gas Turbine Combustor
,”
Proc. Combust. Inst.
,
33
(
2
), pp.
2961
2966
.
8.
Stopper
,
U.
,
Meier
,
W.
,
Sadanandan
,
R.
,
Stöhr
,
M.
,
Aigner
,
M.
, and
Bulat
,
G.
,
2013
, “
Experimental Study of Industrial Gas Turbine Flames Including Quantification of Pressure Influence on Flow Field, Fuel/Air Premixing and Flame Shape
,”
Combust. Flame
,
160
(
10
), pp.
2103
2118
.
9.
Temme
,
J. E.
,
Allison
,
P. M.
, and
Driscoll
,
J. F.
,
2014
, “
Combustion Instability of a Lean Premixed Prevaporized Gas Turbine Combustor Studied Using Phase-Averaged PIV
,”
Combust. Flame
,
161
(
4
), pp.
958
970
.
10.
Boxx
,
I.
,
Slabaugh
,
C.
,
Kutne
,
P.
,
Lucht
,
R. P.
, and
Meier
,
W.
,
2015
, “
3 kHz PIV/OH-PLIF Measurements in a Gas Turbine Combustor at Elevated Pressure
,”
Proc. Combust. Inst.
,
35
(
3
), pp.
3793
3802
.
11.
Tachibana
,
S.
,
Saito
,
K.
,
Yamamoto
,
T.
,
Makida
,
M.
,
Kitano
,
T.
, and
Kurose
,
R.
,
2015
, “
Experimental and Numerical Investigation of Thermo-Acoustic Instability in a Liquid-Fuel Aero-Engine Combustor at Elevated Pressure: Validity of Large-Eddy Simulation of Spray Combustion
,”
Combust. Flame
,
162
(
6
), pp.
2621
2637
.
12.
Yamamoto
,
T.
,
Shimodaira
,
K.
,
Kurosawa
,
Y.
, and
Yoshida
,
S.
,
2011
, “
Combustion Characteristics of Fuel Staged Combustor for Aeroengines at LTO Cycle Conditions
,”
ASME
Paper No. GT2011-46133.
13.
Yamamoto
,
T.
,
Shimodaira
,
K.
,
Yoshida
,
S.
, and
Kurosawa
,
Y.
,
2013
, “
Emission Reduction of Fuel-Staged Aircraft Engine Combustor Using an Additional Premixed Fuel Nozzle
,”
ASME J. Eng. Gas Turbines Power
,
135
(
3
), p.
031502
.
14.
Sadanandan
,
R.
,
Stöhr
,
M.
, and
Meier
,
W.
,
2008
, “
Simultaneous OH-PLIF and PIV Measurements a Gas Turbine Model Combustor
,”
Appl. Phys. B
,
90
(
3–4
), pp.
609
618
.
15.
Schmid
,
P. J.
,
2010
, “
Dynamic Mode Decomposition of Numerical and Experimental Data
,”
J. Fluid Mech.
,
656
, pp.
5
28
.
16.
Schmid
,
P. J.
,
2011
, “
Application of the Dynamic Mode Decomposition to Experimental Data
,”
Exp. Fluids
,
50
(
4
), pp.
1123
1130
.
17.
Rowley
,
C. W.
,
Mezić
,
I.
,
Bagheri
,
S.
,
Schlatter
,
P.
, and
Henningson
,
D. S.
,
2009
, “
Spectral Analysis of Nonlinear Flows
,”
J. Fluid Mech.
,
641
, pp. 115–127.
18.
Poinsot
,
T. J.
,
Trouve
,
A. C.
,
Veynante
,
D. P.
,
Candel
,
S. M.
, and
Esposito
,
E. J.
,
1987
, “
Vortex-Driven Acoustically Coupled Combustion Instabilities
,”
J. Fluid Mech.
,
177
(
1
), pp. 265–292.
19.
Palies
,
P.
,
Durox
,
D.
,
Schuller
,
T.
, and
Candel
,
S.
,
2010
, “
The Combined Dynamics of Swirler and Turbulent Premixed Swirling Flames
,”
Combust. Flame
,
157
(
9
), pp.
1698
1717
.
20.
Samaniego
,
J. M.
,
Yip
,
B.
,
Poinsot
,
T.
, and
Candel
,
S.
,
1993
, “
Low-Frequency Combustion Instability Mechanisms in a Side-Dump Combustor
,”
Combust. Flame
,
94
(
4
), pp.
363
380
.
21.
Richecoeur
,
F.
,
Hakim
,
L.
,
Renaud
,
A.
, and
Zimmer
,
L.
,
2012
, “
DMD Algorithms for Experimental Data Processing in Combustion
,”
Summer Program
, Center for Turbulence Research, Stanford, CA, June 25–July 20, pp.
459
468
.
22.
Moeck
,
J. P.
,
Bourgouin
,
J.-F.
,
Durox
,
D.
,
Schuller
,
T.
, and
Candel
,
S.
,
2012
, “
Nonlinear Interaction Between a Precessing Vortex Core and Acoustic Oscillations in a Turbulent Swirling Flame
,”
Combust. Flame
,
159
(
8
), pp.
2650
2668
.
23.
Alekseenko
,
S. V.
,
Dulin
,
V. M.
,
Kozorezov
,
Y.
, and
Markovich
,
D. M.
,
2012
, “
Effect of High-Amplitude Forcing on Turbulent Combustion Intensity and Vortex Core Precession in a Strongly Swirling Lifted Propane/Air Flame
,”
Combust. Sci. Technol.
,
184
(
10–11
), pp.
1862
1890
.
24.
Renaud
,
A.
,
Ducruix
,
S.
,
Scouflaire
,
P.
, and
Zimmer
,
L.
,
2015
, “
Experimental Study of the Interactions Between Air Flow Rate Modulations and PVC in a Swirl-Stabilised Liquid Fuel Burner
,”
ASME
Paper No. GT2015-42775.
25.
Dowling
,
A. P.
, and
Morgans
,
A. S.
,
2005
, “
Feedback Control of Combustion Oscillations
,”
Annu. Rev. Fluid Mech.
,
37
(
1
), pp.
151
182
.
26.
Ducruix
,
S.
,
Schuller
,
T.
,
Durox
,
D.
, and
Candel
,
S.
,
2003
, “
Combustion Dynamics and Instabilities: Elementary Coupling and Driving Mechanisms
,”
J. Propul. Power
,
19
(
5
), pp.
722
734
.
27.
de la Cruz Garcia
,
M.
,
Mastorakos
,
E.
, and
Dowling
,
A.
,
2009
, “
Investigations on the Self-Excited Oscillations in a Kerosene Spray Flame
,”
Combust. Flame
,
156
(
2
), pp.
374
384
.
28.
Noiray
,
N.
,
Durox
,
D.
,
Schuller
,
T.
, and
Candel
,
S.
,
2008
, “
A Unified Framework for Nonlinear Combustion Instability Analysis Based on the Flame Describing Function
,”
J. Fluid Mech.
,
615
, pp. 139–167.
29.
Matveev
,
K. I.
, and
Culick
,
F. E. C.
,
2003
, “
A Model for Combustion Instability Involving Vortex Shedding
,”
Combust. Sci. Technol.
,
175
(
6
), pp.
1059
1083
.
30.
Apeloig
,
J. M.
,
d'Herbigny
,
F.-X.
,
Simon
,
F.
,
Gajan
,
P.
,
Orain
,
M.
, and
Roux
,
S.
,
2015
, “
Liquid-Fuel Behavior in an Aeronautical Injector Submitted to Thermoacoustic Instabilities
,”
J. Propul. Power
,
31
(
1
), pp.
309
319
.
31.
Silva
,
C. F.
,
Nicoud
,
F.
,
Schuller
,
T.
,
Durox
,
D.
, and
Candel
,
S.
,
2013
, “
Combining a Helmholtz Solver With the Flame Describing Function to Assess Combustion Instability in a Premixed Swirled Combustor
,”
Combust. Flame
,
160
(
9
), pp.
1743
1754
.
You do not currently have access to this content.