Detailed numerical and experimental investigations of film cooling effectiveness were conducted on the blade tips of the first rotor row pertaining to a three-stage research turbine. Four different blade tip ejection configurations were utilized to determine the impact of the hole arrangements on the film cooling effectiveness. Plane tip with tip hole cooling, squealer tip with tip hole cooling, plane tip with pressure side (PS) edge compound angle hole cooling, and squealer tip with PS-edge compound angle hole cooling. To avoid rotor imbalance, every pair is installed radially. Film cooling effectiveness measurements were performed for three blowing ratios (M) of 0.75, 1.25, and 1.75. Film cooling data was also obtained for three rotational speeds; 3000 rpm (reference condition), 2550 rpm and 2000 rpm. Film cooling measurements were performed using pressure sensitive paint (PSP) technique. In a parallel effort, extensive numerical investigations of the above configurations were performed to give a better view of flow behavior using a commercially available code. The experimental investigations were performed in the three-stage multipurpose turbine research facility at the Turbomachinery Performance and Flow Research Laboratory (TPFL), Texas A&M University.

References

References
1.
Khajavi
,
M. R.
, and
Shariat
,
M. H.
,
2004
, “
Failure of First Stage Gas Turbine Blades
,”
Eng. Failure Anal.
,
11
(
4
), pp.
589
597
.10.1016/j.engfailanal.2003.08.010
2.
Han
,
J. C.
,
Dutta
,
S.
, and
Ekkad
,
S. V.
,
2000
,
Gas Turbine Heat Transfer and Cooling Technology
,
Taylor & Francis
,
New York
.
3.
Metzger
,
D. E.
,
Bunker
,
R. S.
, and
Chyu
,
M. K.
,
1989
, “
Cavity Heat Transfer on a Transverse Grooved Wall in a Narrow Flow Channel
,”
ASME J. Heat Transfer
,
111
(
1
), pp.
73
79
.10.1115/1.3250661
4.
Kim
,
Y. W.
, and
Metzger
,
D. E.
,
1995
, “
Heat Transfer and Effectiveness on Film Cooled Turbine Blade Tip Models
,”
ASME J. Turbomach.
,
117
(
1
), pp.
12
21
.10.1115/1.2835630
5.
Kim
,
Y. W.
,
Downs
,
J. P.
, and
Soechting
,
F. O.
,
1995
, “
A Summary of the Cooled Turbine Blade Tip Heat Transfer and Film Effectiveness Investigations Performed by Dr. D. E. Metzger
,”
ASME J. Turbomach.
,
117
(
1
), pp.
1
11
.10.1115/1.2835638
6.
Bunker
,
R. S.
,
2001
, “
A Review of Turbine Blade Tip Heat Transfer, Heat Transfer in Gas Turbine Systems
,”
Ann. N. Y. Acad. Sci.
,
934
, pp.
64
79
.10.1111/j.1749-6632.2001.tb05843.x
7.
Azad
,
G. S.
,
Han
,
J. C.
, and
Teng
,
S.
,
2000
, “
Heat Transfer and Pressure Distributions on a Gas Turbine Blade Tip
,”
ASME J. Turbomach.
,
122
(
4
), pp.
717
724
.10.1115/1.1308567
8.
Azad
,
G. S.
,
Han
,
J. C.
, and
Boyle
,
R. J.
,
2000
, “
Heat Transfer and Flow on the Squealer Tip of a Gas Turbine Blade
,”
ASME J. Turbomach.
,
122
(
4
), pp.
725
732
.10.1115/1.1311284
9.
Bunker
,
R. S.
,
Ameri
,
A. A.
, and
Bailey
,
J. C.
,
2000
, “
Heat Transfer and Flow on the First-Stage Blade Tip of a Power Generation Gas Turbine: Part 1—Experimental Results
,”
ASME J. Turbomach.
,
122
(
2
), pp.
263
271
.10.1115/1.555443
10.
Ameri
,
A. A.
, and
Bunker
,
R. S.
,
2000
, “
Heat Transfer and Flow on the First-Stage Blade Tip of a Power Generation Gas Turbine: Part 2—Simulation Results
,”
ASME J. Turbomach.
,
122
(
2
), pp.
272
277
.10.1115/1.555444
11.
Kwak
,
J. S.
, and
Han
,
J. C.
,
2003
, “
Heat Transfer Coefficient and Film-Cooling Effectiveness on a Gas Turbine Blade Tip
,”
ASME J. Heat Transfer
,
125
(
3
), pp.
494
502
.10.1115/1.1565096
12.
Kwak
,
J. S.
, and
Han
,
J. C.
,
2003
, “
Heat Transfer Coefficient and Film-Cooling Effectiveness on the Squealer Tip of a Gas Turbine Blade
,”
ASME J. Turbomach.
,
125
(
4
), pp.
648
657
.10.1115/1.1622712
13.
Christophel
,
J. R.
,
Thole
,
K. A.
, and
Cunha
,
F. J.
,
2004
, “
Cooling the Tip of a Turbine Blade Using Pressure Side Holes—Part 1: Adiabatic Effectiveness Measurements
,”
ASME
Paper No. GT2004-53251.10.1115/GT2004-53251
14.
Gao
,
Z.
,
Narzary
,
D.
,
Mhetras
,
S.
, and
Han
,
J. C.
,
2009
, “
Effect of Inlet Flow Angle on Gas Turbine Blade Tip Film Cooling
,”
ASME J. Turbomach.
,
131
(
3
), p. 031005.10.1115/1.2987235
15.
Park
,
J. S.
,
Lee
,
D. H.
,
Rhee
,
D. H.
,
Cho
,
H. H.
, and
Kang
,
S. H.
,
2010
, “
Heat Transfer and Effectiveness on the Film Cooled Tip and Inner Surface of a Turbine Blade
,”
ASME
Paper No. GT2010-23203.10.1115/GT2010-23203
16.
Dring
,
R.
,
Blair
,
M.
, and
Joslyn
,
H.
,
1980
, “
An Experimental Investigation of Film Cooling on a Turbine Rotor Blade
,”
ASME J. Eng. Power
,
102
(
1
), pp.
81
87
.10.1115/1.3230238
17.
Takeishi
,
K.
,
Aoki
,
S.
,
Sato
,
T.
, and
Tsukagoshi
,
K.
,
1992
, “
Film Cooling on a Gas Turbine Rotor Blade
,”
ASME J. Turbomach.
,
114
(
4
), pp.
828
834
.10.1115/1.2928036
18.
Abhari
,
R.
, and
Epstein
,
A.
,
1994
, “
Experimental Study of Film Cooling in a Rotating Transonic Turbine
,”
ASME J. Turbomach.
,
116
(
1
), pp.
63
70
.10.1115/1.2928279
19.
Acharya
,
S.
, and
Moreaux
,
L.
,
2012
, “
Numerical Study of the Flow Past a Turbine Blade Tip: Effect of Relative Motion Between Blade and Shroud
,”
ASME
Paper No. GT2012-69192.10.1115/GT2012-69192
20.
Yang
,
D.
,
Yu
,
X.
, and
Feng
,
Z.
,
2008
, “
Investigation of Leakage Flow and Heat Transfer in a Gas Turbine Blade Tip With Emphasis on the Effect of Rotation
,”
ASME
Paper No. GT2008-51215.10.1115/GT2008-51215
21.
Lu
,
K.
,
Schobeiri
,
M. T.
, and
Han
,
J. C.
,
2013
, “
Numerical Simulation of Film Cooling on Rotating Blade Tips Within a High-Pressure Turbine
,”
ASME
Paper No. GT2013-94806.10.1115/GT2013-94806
22.
Molter
,
S. M.
,
Dunn
,
M. G.
,
Haldeman
,
C. W.
,
Bergholz
,
R. F.
, and
Vitt
,
P.
,
2006
, “
Heat-Flux Measurements and Predictions for the Blade Tip Region of a High-Pressure Turbine
,”
ASME
Paper No. GT2006-90048.10.1115/GT2006-90048
23.
Haldeman
,
C. W.
,
Mathison
,
R. M.
,
Dunn
,
M. G.
,
Southworth
,
S.
,
Harral
,
J. W.
, and
Heltland
,
G.
,
2008
, “
Aerodynamic and Heat Flux Measurements in a Single-Stage Fully Cooled Turbine—Part I: Experimental Approach
,”
ASME J. Turbomach.
,
130
(
2
), p.
021015
.10.1115/1.2750676
24.
Haldeman
,
C. W.
,
Mathison
,
R. M.
,
Dunn
,
M. G.
,
Southworth
,
S.
,
Harral
,
J. W.
, and
Heltland
,
G.
,
2008
, “
Aerodynamic and Heat Flux Measurements in a Single-Stage Fully Cooled Turbine—Part II: Experimental Results
,”
ASME J. Turbomach.
,
130
(
2
), p.
021016
.10.1115/1.2750678
25.
Ahn
,
J. Y.
,
Schobeiri
,
M. T.
,
Han
,
J. C.
, and
Moon
,
H. K.
,
2007
, “
Effect of Rotation on Leading Edge Region Film Cooling of a Gas Turbine Blade With Three Rows of Film Cooling Holes
,”
Int. J. Heat Mass Transfer
,
50
(
1–2
), pp.
15
25
.10.1016/j.ijheatmasstransfer.2006.06.028
26.
Ahn
,
J. Y.
,
Schobeiri
,
M. T.
,
Han
,
J. C.
, and
Moon
,
H. K.
,
2006
, “
Film Cooling Effectiveness on the Leading Edge Region of a Rotating Turbine Blade With Two Rows of Film Cooling Holes Using Pressure Sensitive Paint
,”
ASME J. Heat Transfer
,
128
(
9
), pp.
879
888
.10.1115/1.2241945
27.
Rezasoltani
,
M.
,
Schobeiri
,
M. T.
, and
Han
,
J. C.
,
2014
, “
Experimental Investigation of the Effect of Purge Flow on Film Cooling Effectiveness on a Rotating Turbine With Non-Axisymmetric Endwall Contouring
,”
ASME J. Turbomach.
136
(9), p. 091009.10.1115/1.4027196
28.
Schobeiri
,
M. T.
,
Gilarranz
,
J.
, and
Johansen
,
E.
, 1999, “Final Report on: Efficiency, Performance, and Interstage Flow Field Measurement of Siemens-Westinghouse HP-Turbine Blade Series 9600 and 5600,” TPFL-Westinghouse Report 1997-1.
29.
Schobeiri
,
M. T.
,
Suryanarayanan
,
A.
,
Jermann
,
C.
, and
Neuenschwander
,
T.
,
2004
, “
A Comparative Aerodynamic and Performance Study of a Three-Stage High Pressure Turbine With 3D Bowed Blades and Cylindrical Blades
,”
ASME
Paper No. GT2004-53650.10.1115/GT2004-53650
30.
Suryanarayanan
,
A.
,
Mhetras
,
S. P.
,
Schobeiri
,
M. T.
, and
Han
,
J. C.
,
2009
, “
Film-Cooling Effectiveness on a Rotating Blade Platform
,”
ASME J. Turbomach.
,
131
(
1
), p.
011014
.10.1115/1.2752184
31.
Han
,
J. C.
, and
Rallabandi
,
A. P.
,
2010
, “
Turbine Blade Film Cooling Using PSP Technique
,”
Front. Heat Mass Transfer
,
1
(
1
), p. 013001.10.5098/hmt.v1.1.3001
32.
McLachlan
,
B.
, and
Bell
,
J.
,
1995
, “
Pressure-Sensitive Paint in Aerodynamic Testing
,”
Exp. Therm. Fluid Sci.
,
10
(
4
), pp.
470
485
.10.1016/0894-1777(94)00123-P
33.
Wright
,
L. M.
,
Gao
,
Z.
,
Varvel
,
T. A.
, and
Han
,
J. C.
,
2005
, “
Assessment of Steady State PSP, TSP and IR Measurement Techniques for Flat Plate Film Cooling
,”
ASME
Paper No. HT2005-72363.10.1115/HT2005-72363
34.
Rallabandi
,
A. P.
,
Grizzle
,
J.
, and
Han
,
J. C.
,
2011
, “
Effect of Upstream Step on Flat Plate Film Cooling Effectiveness Using PSP
,”
ASME J. Turbomach.
,
133
(
4
), p.
041024
.10.1115/1.4002422
35.
Coleman
,
H. W.
, and
Steele
,
W. G.
,
1989
,
Experimentation and Uncertainty Analysis for Engineers
,
Wiley
,
New York
.
36.
Holman
,
J. P.
,
2000
,
Experimental Methods for Engineers
,
McGraw-Hill
,
New York
.
37.
Abdelfattah
,
S. A.
, and
Schobeiri
,
M. T.
,
2010
, “
Experimental and Numerical Investigations of Aerodynamic Behavior of a Three-Stage HP-Turbine at Different Operating Conditions
,”
ASME
Paper No. GT2010-23564.10.1115/GT2010-23564
38.
Ahn
,
J.
,
Mhetras
,
S.
, and
Han
,
J. C.
,
2005
, “
Film-Cooling Effectiveness on a Gas Turbine Blade Tip Using Pressure Sensitive Paint
,”
ASME J. Heat Transfer
,
127
(
5
), pp.
521
530
.10.1115/1.1909208
You do not currently have access to this content.