Perforated panels placed upstream of the premixing tube of a turbulent swirled burner are investigated as a passive control solution for combustion instabilities. Perforated panels backed by a cavity are widely used as acoustic liners, mostly in the hot gas region of combustion chambers to reduce pure tone noises. This paper focuses on the use of this technology in the fresh reactants zone to control the inlet acoustic reflection coefficient of the burner and to stabilize the combustion. This method is shown to be particularly efficient because high acoustic fluxes issued from the combustion region are concentrated on a small surface area inside the premixer. Theoretical results are used to design two types of perforated plates featuring similar acoustic damping properties when submitted to low amplitude pressure fluctuations (linear regime). Their behaviors nonetheless largely differ when facing large pressure fluctuation levels (nonlinear regime) typical of those encountered during self-sustained combustion oscillations. Conjectures are given to explain these differences. These two plates are then used to clamp thermoacoustic oscillations. Significant damping is only observed for the plate featuring a robust response to increasing sound levels. While developed on a laboratory scale swirled combustor, this method is more general and may be adapted to more practical configurations.

1.
Candel
,
S.
, 2002, “
Combustion Dynamics and Control: Progress and Challenges
,”
Proc. Combust. Inst.
1540-7489,
29
(
1
), pp.
1
28
.
2.
Ducruix
,
S.
,
Schuller
,
T.
,
Durox
,
D.
, and
Candel
,
S.
, 2003, “
Combustion Dynamics and Instabilities: Elementary Coupling and Driving Mechanisms
,”
J. Propul. Power
0748-4658,
19
, pp.
722
734
.
3.
Lieuwen
,
T.
, and
Yang
,
V.
, 2006,
Combustion Instabilities in Gas Turbine Engines: Operational Experience, Fundamental Mechanisms, and Modeling
, (
Progress in Astronautics and Aeronautics
, Vol.
210
).
4.
Bloxsidge
,
G. J.
,
Dowling
,
A.
,
Hooper
,
N.
, and
Langhorne
,
P.
, 1988, “
Active Control of Reheat Buzz
,”
AIAA J.
,
26
(
7
), pp.
783
790
. 0001-1452
5.
Lang
,
W.
,
Poinsot
,
T.
, and
Candel
,
S.
, 1987, “
Active Control of Combustion Instability
,”
Combust. Flame
0010-2180,
70
(
3
), pp.
281
289
.
6.
Billoud
,
G.
,
Galland
,
M.
,
Huynh Huu
,
C.
, and
Candel
,
S.
, 1992, “
Adaptive Active Control of Combustion Instabilities
,”
Combust. Sci. Technol.
0010-2202,
81
, pp.
257
283
.
7.
Bernier
,
D.
,
Ducruix
,
S.
,
Lacas
,
F.
,
Candel
,
S.
,
Robart
,
N.
, and
Poinsot
,
T.
, 2003, “
Transfer Function Measurements in a Model Combustor: Application to Adaptive Instability Control
,”
Combust. Sci. Technol.
0010-2202,
175
, pp.
993
1013
.
8.
Bothien
,
M.
,
Moeck
,
J.
, and
Paschereit
,
C.
, 2007, “
Impedance Tuning of a Premixed Combustor Using Active Control
,” ASME Paper No. GT2007-27796.
9.
Bellucci
,
V.
,
Flohr
,
P.
,
Paschereit
,
C.
, and
Magni
,
F.
, 2004, “
On the Use of Helmholtz Resonators for Damping Acoustic Pulsations in Industrial Gas Turbines
,”
ASME J. Eng. Gas Turbines Power
0742-4795,
126
, pp.
271
275
.
10.
Hughes
,
I. J.
, and
Dowling
,
A. P.
, 1990, “
The Absorption of Sound by Perforated Linings
,”
J. Fluid Mech.
0022-1120,
218
, pp.
299
335
.
11.
Melling
,
T.
, 1973, “
The Acoustic Impedance of Perforates at Medium and High Sound Pressure Levels
,”
J. Sound Vib.
0022-460X,
29
, pp.
1
65
.
12.
Howe
,
M. S.
, 1979, “
On the Theory of Unsteady High Reynolds Number Flow Through a Circular Aperture
,”
Proc. R. Soc. London, Ser. A
1364-5021,
366
(
1725
), pp.
205
223
.
13.
Narayana Rao
,
K.
, and
Munjal
,
M. L.
, 1986, “
Experimental Evaluation of Impedance of Perforates With Grazing Flow
,”
J. Sound Vib.
0022-460X,
108
(
2
), pp.
283
295
.
14.
Bechert
,
D. W.
, 1980, “
Sound-Absorption Caused by Vorticity Shedding, Demonstrated With a Jet Flow
,”
J. Sound Vib.
0022-460X,
70
(
3
), pp.
389
405
.
15.
Eldredge
,
J. D.
, and
Dowling
,
A. P.
, 2003, “
The Absorption of Axial Acoustic Waves by a Perforated Liner With Bias Flow
,”
J. Fluid Mech.
0022-1120,
485
, pp.
307
335
.
16.
Leppington
,
F. G.
, and
Levine
,
H.
, 1973, “
Reflection and Transmission at a Plane Screen With Periodically Arranged Circular or Elliptical Apertures
,”
J. Fluid Mech.
0022-1120,
61
, pp.
109
127
.
17.
Peat
,
K. S.
,
Sugimoto
,
R.
, and
Horner
,
J. L.
, 2006, “
The Effects of Thickness on the Impedance of a Rectangular Aperture in the Presence of a Grazing Flow
,”
J. Sound Vib.
,
292
(
3–5
), pp.
610
625
. 0022-460X
18.
Celik
,
E.
,
Sever
,
A. C.
, and
Rockwell
,
D.
, 2005, “
Self-Sustained Oscillations Past Perforated and Slotted Plates: Effect of Plate Thickness
,”
AIAA J.
,
43
(
8
), pp.
1850
1853
. 0001-1452
19.
Luong
,
T.
,
Howe
,
M. S.
, and
McGowan
,
R. S.
, 2005, “
On the Rayleigh Conductivity of a Bias-Flow Aperture
,”
J. Fluids Struct.
,
21
(
8
), pp.
769
778
. 0889-9746
20.
Dragan
,
S. P.
, and
Lebedeva
,
I. V.
, 1998, “
Absorption of High-Intensity Sound by a Perforated Panel
,”
Acoust. Phys.
1063-7710,
44
, pp.
167
172
.
21.
Jing
,
X.
, and
Sun
,
X.
, 2002, “
Sound-Excited Flow and Acoustic Nonlinearity at an Orifice
,”
Phys. Fluids
1070-6631,
14
(
1
), pp.
268
276
.
22.
Dowling
,
A. P.
, and
Stow
,
S. R.
, 2003, “
Acoustic Analysis of Gas Turbine Combustors
,”
J. Propul. Power
0748-4658,
19
(
5
), pp.
751
764
.
23.
Tran
,
N.
,
Ducruix
,
S.
, and
Schuller
,
T.
, 2009, “
Damping Combustion Instabilities With Perforates at the Premier Inlet of a Swirled Burner
,”
Proc. Combust. Inst.
1540-7489,
32
, pp.
2917
2924
.
24.
Howe
,
M. S.
, 1998,
Acoustics of Fluid-Structure Interaction
,
Cambridge University Press
,
Cambridge
.
25.
Tran
,
N.
,
Schuller
,
T.
, and
Ducruix
,
S.
, 2007, “
Analysis and Control of Combustion Instabilities by Adaptive Reflection Coefficients
,”
13th AIAA/CEAS Aeroacoustics Conference
, Paper No. AIAA-2007-3716.
26.
Chung
,
J. Y.
, and
Blaser
,
D. A.
, 1980, “
Transfer Function Method of Measuring In-Duct Acoustic Properties. I. Theory
,”
J. Acoust. Soc. Am.
0001-4966,
68
, pp.
907
913
.
27.
Uhm
,
J. H.
, and
Acharya
,
S.
, 2005, “
Low-Bandwidth Open-Loop Control of Combustion Instability
,”
Combust. Flame
,
142
(
4
), pp.
348
363
. 0010-2180
28.
Eckstein
,
J.
,
Freitag
,
E.
,
Hirsch
,
C.
, and
Sattelmayer
,
T.
, 2006, “
Experimental Study on the Role of Entropy Waves in Low-Frequency Oscillations in a rql Combustor
,”
ASME J. Eng. Gas Turbines Power
0742-4795,
128
(
2
), pp.
264
270
.
29.
Dioc
,
N.
, 2005, “
Etude expérimentale des mécanismes d’instabilités dans un brûleur à injection étagée. application aux turbines à gaz
,” Ph.D. thesis, Ecole Centrale Paris, Châtenay-Malabry.
30.
Huang
,
Y.
,
Sung
,
H. -G.
,
Hsieh
,
S. -Y.
, and
Yang
,
V.
, 2003, “
Large-Eddy Simulation of Combustion Dynamics of Lean-Premixed Swirl-Stabilized Combustor
,”
J. Propul. Power
0748-4658,
19
(
5
), pp.
782
794
.
31.
Roux
,
S.
,
Lartigue
,
G.
,
Poinsot
,
T.
,
Meier
,
U.
, and
Berat
,
C.
, 2005, “
Studies of Mean and Unsteady Flow in a Swirled Combustor Using Experiments, Acoustic Analysis, and Large Eddy Simulations
,”
Combust. Flame
0010-2180,
141
(
1-2
), pp.
40
54
.
32.
Syred
,
N.
, 2006, “
A Review of Oscillation Mechanisms and the Role of the Precessing Vortex Core (PVC) in Swirl Combustion Systems
,”
Prog. Energy Combust. Sci.
0360-1285,
32
(
2
), pp.
93
161
.
You do not currently have access to this content.