The current paper presents steady and unsteady flow data of a transonic test turbine stage operating under flow conditions similar to modern highly loaded gas turbines. Measurements were performed between stator and rotor as well as downstream of the rotor in planes perpendicular to the rotor axis. Time-resolved axial and tangential velocities were measured by a two-component laser doppler velocimeter (LDV) to investigate unsteady phenomena, while time-averaged flow properties were measured by means of a pneumatic seven-hole probe for all three spatial directions. The time-resolved investigation done by LDV allows to present velocity fields, flow angles and turbulence data at different stator-rotor positions during one blade passing period. Averaging these results enabled comparison with the pneumatic multihole probe measurement. LDV data and stage geometry can be obtained per email request and used for computational fluid dynamics (CFD) code verification.

1.
Zeschky, J., 1991, “Experimentelle Untersuchung der dreidimensionalen instationa¨ren Rotorstro¨mung einer axialen Kaltluftturbine,” Ph.D. thesis, Institute for Jet Propulsion and Turbomachinery, RWTH Aachen, Germany (in German).
2.
Joslyn
,
D.
, and
Dring
,
R.
,
1992
, “
Three-Dimensional Flow in an Axial Turbine. Part 1: Aerodynamic Mechanisms
,”
ASME J. Turbomach.
,
114
, pp.
61
70
.
3.
Zaccaria, M.A., 1994, “An Experimental Investigation into the Steady and Unsteady Flow Field in an Axial Flow Turbine,” Ph.D. thesis, Pennsylvania State University, USA.
4.
Busby
,
J.A.
,
Davis
,
R.L.
,
Dorney
,
D.J.
,
Dunn
,
M.G.
,
Haldeman
,
W.C.
,
Abhari
,
R.S.
,
Venable
,
B.L.
, and
Delaney
,
R.A.
,
1999
, “
Influence of Vane-Blade Spacing on Transonic Turbine—Part II: Time Resolved Data and Analysis
,”
ASME J. Turbomach.
,
121
, pp.
673
682
.
5.
De´nos
,
R.
,
Arts
,
T.
,
Paniagua
,
G.
,
Michelassi
,
V.
, and
Martelli
,
F.
,
2001
, “
Investigation of the Unsteady Rotor Aerodynamics in a Transonic Turbine Stage
,”
ASME J. Turbomach.
,
123
, pp.
81
89
.
6.
Tiedemann
,
M.
, and
Kost
,
F.
,
2001
, “
Some Aspects of Wake-Wake Interactions Regarding Turbine Stator Clocking
,”
ASME J. Turbomach.
,
123
, pp.
526
533
.
7.
Lang
,
H.
,
Mørck
,
T.
, and
Woisetschla¨ger
,
J.
,
2002
, “
Stereoscopic Particle Image Velocimetry in a Transonic Turbine Stage
,”
Exp. Fluids
,
32
, pp.
700
709
.
8.
Woisetschla¨ger
,
J.
,
Lang
,
H.
,
Hampel
,
B.
, and
Go¨ttlich
,
E.
,
2002
, “
Influence of Blade Passing on the Stator Wake in a Transonic Turbine Stage by Particle Image Velocimetry and Laser Vibrometry
,”
IMechE J. Power Energy
,
217
(Part A), pp.
385
391
.
9.
Erhard, J., and Gehrer, A., 2000, “Design and Construction of a Transonic Test Turbine Facility,” ASME Paper No. 2000-GT-480.
10.
Neumayer, F., Kulhanek, G., Pirker, H.P., Jericha, H., Seyr, A., and Sanz, W., 2001, “Operational Behavior of a Complex Transonic Test Turbine Facility,” ASME Paper No. 2001-GT-489.
11.
Neumayer, F., Heitmeir, F., Go¨ttlich, E., and Pieringer, P., 2002, “Experimental Investigation of the Flow in a Transonic Turbine Stage,” Paper No. TA08/78, Proc. 5th European Conference on Turbomachinery, Fluid Dynamics and Thermodynamics, M. Sˇt’astny´, C.H. Sieverding, and G. Bois, eds., Prague, Czech Republic, pp. 1061–1075.
12.
Neumayer, F., 2002, “Measurements of Transonic Turbine Stage Characteristics and 3-D Flow Fields,” Ph.D. thesis, Institute for Thermal Turbomachinery and Machine Dynamics, Graz University of Technology, Austria.
13.
Glas
,
W.
,
Forstner
,
M.
,
Kuhn
,
K.
, and
Jaberg
,
H.
,
2000
, “
Smoothing and Statistical Evaluation of LDV Data of Turbulent Flows in Reciprocating Machinery
,”
Exp. Fluids
,
29
, pp.
411
417
.
You do not currently have access to this content.