Abstract

In recent years, unsteady flow-control technology has been considered as more promising for reducing secondary flow loss in turbines. Sweeping jet actuators (SJAs), in particular, have steadily been used in turbomachinery to reduce loss due to their wide sweeping range. However, most of the preliminary studies were focused mainly on computational fluid dynamics calculations, with very few on wind tunnel experiments to verify the flow-control effectiveness. To fill this gap, an innovative attempt to investigate experimentally the influences of SJAs on the aerodynamic performance and leakage flow is presented in a high-pressure turbine cascade. Comparing SJAs and hole-type steady jet actuators (HSJAs), the influence on the tip leakage flow and the loss characteristics at various incidences and injection frequencies are discussed in detail. The results indicate that the SJAs effectively reduce the magnitude and extension of the leakage vortex and the passage vortex, and weaken the interactions between them. The loss at the cascade outlet drops by up to 10.3% when the jet flow of an SJA equals 0.2% of the inlet flow, which is significantly better than that with an HSJA (6.3%).

References

1.
Booth
,
T. C.
,
Dodge
,
P. R.
, and
Hepworth
,
H. K.
,
1982
, “
Rotor-Tip Leakage: Part I—Basic Methodology
,”
ASME J. Eng. Power
,
104
(
1
), pp.
154
161
.
2.
Denton
,
J.
,
May 1993
, “
Loss Mechanisms in Turbomachines
,”
Proceedings of Turbo Expo 1993: Power for Land Sea, and Air
,
ASME
, Paper No: 93-GT-435.
3.
Heyes
,
F. J. G.
,
Hodson
,
H. P.
, and
Dailey
,
G. M.
,
June 1991
, “
The Effect of Blade Tip Geometry on the Tip Leakage Flow in Axial Turbine Cascades
,”
Proceedings of Turbo Expo 1991: Power for Land Sea, and Air
,
ASME
, Paper No: 91-GT-135.
4.
Bindon
,
J. P.
,
1989
, “
The Measurement and Formation of Tip Clearance Loss
,”
ASME J. Turbomach.
,
111
(
3
), pp.
257
263
.
5.
Bunker
,
R. S.
,
2006
, “
Axial Turbine Blade Tips: Function, Design, and Durability
,”
J. Propul. Power
,
22
(
2
), pp.
271
285
.
6.
Bunker
,
R. S.
,
2001
, “
A Review of Turbine Blade Tip Heat Transfer
,”
Ann. N. Y. Acad. Sci.
,
934
(
1
), pp.
64
79
.
7.
Zhou
,
C.
, and
Hodson
,
H.
,
2012
, “
Squealer Geometry Effects on Aerothermal Performance of Tip-Leakage Flow of Cavity Tips
,”
J. Propul. Power
,
28
(
3
), pp.
556
567
.
8.
Zhou
,
Z.
,
Chen
,
S.
,
Li
,
W.
,
Wang
,
S.
, and
Zhou
,
X.
,
2018
, “
Experiment Study of Aerodynamic Performance for the Suction-Side and Pressure-Side Winglet-Cavity Tips in a Turbine Blade Cascade
,”
Exp. Therm. Fluid. Sci.
,
90
, pp.
220
230
.
9.
De Maesschalck
,
C.
,
Andreoli
,
V.
,
Paniagua
,
G.
,
Gillen
,
T.
, and
Barker
,
B.
,
2021
, “
Aerothermal Optimization of Turbine Squealer Tip Geometries With Arbitrary Cooling Injection
,”
ASME J. Turbomach.
,
143
(
11
), p.
111010
.
10.
Ma
,
H.
,
Zeng
,
W.
,
Jiang
,
H.
, and
Hong
,
J.
,
2022
, “
Impact of Cooling Injection on Shock Wave Over a Flat Tip in High Pressure Turbine
,”
ASME J. Turbomach.
,
144
(
1
), p.
011012
.
11.
Yu
,
J.
,
Wang
,
Z.
,
Chen
,
F.
,
Yu
,
J.
, and
Wang
,
C.
,
2019
, “
Kriging Surrogate Model Applied in the Mechanism Study of Tip Leakage Flow Control in Turbine Cascade by Multiple DBD Plasma Actuators
,”
Aerosp. Sci. Technol.
,
85
, pp.
216
228
.
12.
Wang
,
Z.
,
Yu
,
J.
,
Chen
,
F.
, and
Song
,
Y.
,
2019
, “
Effect of Multiple DBD Plasma Actuators on the Tip Leakage Flow Structure and Loss of a Turbine Cascade
,”
Int. J. Heat Fluid Flow
,
77
, pp.
377
387
.
13.
Behr
,
T.
,
Kalfas
,
A. I.
, and
Abhari
,
R. S.
,
2006
, “
Control of Rotor Tip Leakage Through Cooling Injection From the Casing in a High-Work Turbine
,”
ASME J. Turbomach.
,
130
(
3
), p.
031014
.
14.
Li
,
F.
,
Liu
,
Z.
, and
Feng
,
Z.
,
2021
, “
Turbine Blade Tip and Casing Phantom Cooling From Blade-Surface Film Coolant
,”
J. Thermophys. Heat Transfer
,
35
(
2
), pp.
210
224
.
15.
Yu
,
J.
,
Wang
,
Y.
,
Song
,
Y.
, and
Chen
,
F.
,
2021
, “
Effect of the Honeycomb Tip With Injection on the Aerodynamic Performance in a 1.5-Stage Turbine
,”
ASME J. Turbomach.
,
143
(
3
), p.
031002
.
16.
Dobrzynski
,
B.
,
Saathoff
,
H.
,
Kosyna
,
G.
,
Clemen
,
C.
, and
Gummer
,
V.
,
2008
, “
Active Flow Control in a Single-Stage Axial Compressor Using Tip Injection and Endwall Boundary Layer Removal
,”
Proceedings of Turbo Expo 2007: Power for Land Sea, and Air
,
Berlin, Germany
,
June 9–13
, pp.
139
148
.
17.
Zhang
,
S. C.
,
Zhang
,
J. Z.
,
Tan
,
X. M.
, and
Liu
,
S.
,
2022
, “
Effects of Casing Air Injection on Film Cooling and Aerodynamic Performances of an Axial Turbine Cascade
,”
Ther. Sci. Eng. Prog.
,
29
(
1
), p.
101209
.
18.
Zhang
,
H.
, and
Chen
,
S.
,
2021
, “
Pulsed Suction Control in a Highly Loaded Compressor Cascade With Low Suction Flowrates
,”
ASME J. Turbomach.
,
143
(
6
), p.
061006
.
19.
Abbasi
,
S.
, and
Gholamalipour
,
A.
,
2020
, “
Parametric Study of Injection From the Casing in an Axial Turbine
,”
Proc. Inst. Mech. Eng., Part A
,
234
(
5
), pp.
582
593
.
20.
Zhou
,
K.
, and
Zhou
,
C.
,
2021
, “
Aerodynamic Effects of an Incoming Vortex on Turbines With Different Tip Geometries
,”
ASME J. Turbomach.
,
143
(
8
), p.
081009
.
21.
Mack
,
M.
,
Niehuis
,
R.
,
Fiala
,
A.
, and
Guendogdu
,
Y.
,
2013
, “
Boundary Layer Control on a Low Pressure Turbine Blade by Means of Pulsed Blowing
,”
ASME J. Turbomach.
,
135
(
5
), p.
051023
.
22.
Hossain
,
M. A.
,
Agricola
,
L.
,
Ameri
,
A.
,
Gregory
,
J. W.
, and
Bons
,
J. P.
,
2019
, “
Sweeping Jet Film Cooling on a Turbine Vane
,”
ASME J. Turbomach.
,
141
(
3
), p.
031007
.
23.
Koklu
,
M.
, and
Owens
,
L. R.
,
2017
, “
Comparison of Sweeping Jet Actuators With Different Flow-Control Techniques for Flow-Separation Control
,”
AIAA J.
,
55
(
3
), pp.
848
860
.
24.
Dandois
,
J.
,
Verbeke
,
C.
, and
Ternoy
,
F.
,
2020
, “
Performance Enhancement of a Vertical Tail Model With Sweeping Jets
,”
AIAA J.
,
58
(
12
), pp.
5202
5215
.
25.
Cerretelli
,
C.
,
Wuerz
,
W.
, and
Gharaibah
,
E.
,
2010
, “
Unsteady Separation Control on Wind Turbine Blades Using Fluidic Oscillators
,”
AIAA J.
,
48
(
7
), pp.
1302
1311
.
26.
Melton
,
P.
, and
G
,
L.
,
June 2014
, “
Active Flow Separation Control on a NACA 0015 Wing Using Fluidic Actuators
,”
AIAA Paper 2014-2364.
27.
Kara
,
K.
,
Kim
,
D.
, and
Morris
,
P. J.
,
2018
, “
Flow-Separation Control Using Sweeping Jet Actuator
,”
AIAA J.
,
56
(
11
), pp.
4604
4613
.
28.
Alam
,
M.
, and
Kara
,
K.
,
2022
, “
The Influence of Exit Nozzle Geometry on Sweeping Jet Actuator Performance
,”
Fluids
,
7
(
2
), p.
69
.
29.
Chen
,
S.
,
Li
,
W.
,
Meng
,
Q.
,
Zhou
,
Z.
, and
Wang
,
S.
,
2019
, “
Effects of a Sweeping Jet Actuator on Aerodynamic Performance in a Linear Turbine Cascade With Tip Clearance
,”
Proc. Inst. Mech. Eng., Part G
,
233
(
12
), pp.
4468
4481
.
30.
Newton
,
P. J.
,
Lock
,
G. D.
,
Krishnababu
,
S. K.
,
Hodson
,
H. P.
,
Dawes
,
W. N.
,
Hannis
,
J.
, and
Whitney
,
C.
,
2006
, “
Heat Transfer and Aerodynamics of Turbine Blade Tips in a Linear Cascade
,”
ASME J. Turbomach.
,
128
(
2
), pp.
300
309
.
31.
Mayle
,
R. E.
, and
Metzger
,
D. E.
,
1982
, “
Heat Transfer at the Tip of an Unshrouded Turbine Blade
,”
International Heat Transfer Conference Digital Library
,
Munich, Germany
,
Sept. 6–10
.
32.
Srinivasan
,
V.
, and
Goldstein
,
R. J.
,
2003
, “
Effect of Endwall Motion on Blade Tip Heat Transfer
,”
ASME J. Turbomach.
,
125
(
2
), pp.
267
273
.
33.
Li
,
W.
,
Chen
,
S.
,
Liu
,
H.
,
Zhou
,
Z.
, and
Wang
,
S.
,
2020
, “
Effects of Double-Side Labyrinth Seals on Aerodynamic Performance in a Transonic Shrouded Turbine Stage
,”
ASME J. Eng. Gas Turbines Power
,
142
(
2
), p.
021010
.
34.
Zhou
,
C.
,
Hodson
,
H.
, and
Lock
,
G.
,
2012
, “
Thermal Performance of Different Cooled Tips in a High-Pressure Turbine Cascade
,”
J. Propul. Power
,
28
(
5
), pp.
900
911
.
35.
Volino
,
R. J.
,
2017
, “
Control of Tip Leakage in a High-Pressure Turbine Cascade Using Tip Blowing
,”
ASME J. Turbomach.
,
139
(
6
), p.
061008
.
36.
Figliola
,
R. S.
, and
Beasley
,
D. E.
,
2001
,
Theory and Design for Mechanical Measurements, 3rd ed
, John Wiley and Sons, New York.
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