The paper focuses on the unsteady pressure field measured around the rotor midspan profile of the VKI Brite transonic turbine stage. The understanding of the complex unsteady flow field is supported by a quasi-three-dimensional unsteady Navier–Stokes computation using a turbulence model and a modified version of the Abu-Ghannam and Shaw correlation for the onset of transition. The agreement between computational and experimental results is satisfactory. They both reveal the dominance of the vane shock in the interaction. For this reason, it is difficult to identify the influence of vane-wake ingestion in the rotor passage from the experimental data. However, the computations allow us to draw some useful conclusions in this respect. The effect of the variation of the rotational speed, the stator–rotor spacing, and the stator trailing edge coolant flow ejection is investigated and the unsteady blade force pattern is analyzed.
Issue Section:
Technical Papers
1.
Halstead
, D. E.
, Wisler
, D. C.
, Okiishi
, T. H.
, Walker
, G. J.
, Hodson
, H. P.
, and Shin
, H. W.
, 1997
, “Boundary Layer Development in Axial Compressors and Turbines—Part 3 of 4: LP Turbines
,” ASME J. Turbomach.
, 119
, pp. 225
–237
.2.
Harvey, N. W., Cox, J. C., Schulte, V., Howell, R., and Hodson, H. P., 1999, “The Role of Research in the Aerodynamic Design of Advanced Low-Pressure Turbine,” Trans. 3rd European Conference on Turbomachinery, pp 123–132.
3.
Garside, T., Moss, R. W., Ainsworth, R. W., Dancer, S. N., and Rose, M. G., 1994, “Heat Transfer to Rotating Turbine Blades in a Flow Undisturbed by Wakes,” ASME Paper No. 94-GT-94.
4.
De´nos, R., 1996, “Investigation of the Unsteady Aerothermal Flow Field in the Rotor of a Transonic Turbine,” Ph.D. thesis, IVK—University of Poitiers.
5.
Jung, A. R., Mayer, J. F., and Stetter, H., 1996, “Simulation of 3D-Unsteady Stator-Rotor Interaction in Turbomachinery Stages of Arbitrary Pitch Ratio,” ASME Paper No. 96-GT-69.
6.
Gundy-Burlet, K. L., and Dorney, D. J., 1996, “Three-Dimensional Simulations of Hot Streak Clocking in a 1-1/2 Stage Turbine,” presented at 32nd IAA/ASME/SAE/ASEE Joint Propulsion Conference, Lake Buena Vista, FL, July 1–3.
7.
Hilditch, M. A., Smith, G. C., and Singh, U. K., 1998 “Unsteady Flow in a Single Turbine Stage,” ASME Paper No. 98-GT-531.
8.
Emunds
, R.
, Jennions
, I. K.
, Bohn
, D.
, and Gier
, J.
, 1999
, “The Computation of Adjacent Blade-Row Effects in a 1.5-Stage Axial Flow Turbine
,” ASME J. Turbomach.
, 121
, pp. 1
–10
.9.
Giles, M. B., 1991, “UNSFLO: A Numerical Method for the Calculation of Unsteady Flow in Turbomachinery,” GTL Rep. No. 205, MIT Gas Turbine Laboratory.
10.
DeRango
, S.
, and Zing
, D. W.
, 1997
, “Improvements to a Dual-Time Stepping Method for Computing Unsteady Flows
,” AIAA J.
, 35
, No. 9
, pp. 1548
–1550
.11.
Doorly
, D. J.
, and Oldfield
, M. L. G.
, 1985
, “Simulation of the Effect of Shock Wave Passing on a Turbine Rotor Blade
,” ASME J. Eng. Gas Turbines Power
, 107
, pp. 998
–1006
.12.
Ashworth
, D. A.
, LaGraff
, J. E.
, Shultz
, D. L.
, and Grindrod
, K. J.
, 1985
, “Unsteady Aerodynamic and Heat Transfer Processes in a Transonic Turbine Stage
,” ASME J. Eng. Gas Turbines Power
, 107
, pp. 1022
–1030
.13.
Giles, M. B., 1988, “Stator/Rotor Interaction in a Transonic Turbine,” AIAA Paper No. 88-3093.
14.
Saxer
, A. P.
, and Giles
, M. B.
, 1994
, “Predictions of Three-Dimensional Steady and Unsteady Inviscid Transonic Stator/Rotor Interaction With Inlet Radial Temperature Nonuniformity
,” ASME J. Turbomach.
, 116
, pp. 347
–357
.15.
Moss, R. W., Sheldrake, C. D., Ainsworth, R. W., Smith A. D., and Dancer, S. N., 1996, “Unsteady Pressure and Heat Transfer Measurements on a Rotating Blade Surface in a Transient Flow Facility,” 85th Propulsion and Energetic Panel Symposium on Loss Mechanism and Unsteady Flows in Turbomachines, Derby, UK, AGARD CP No. 571.
16.
Rao
, K. V.
, Delaney
, R. A.
, and Dunn
, M. G.
, 1994
, “Vane–Blade Interaction in a Transonic Turbine. Part 1: Aerodynamics. Part 2: Heat Transfer
,” AIAA J. Propulsion Power
, 10
, No. 3
, pp. 305
–317
.17.
Guenette
, G. R.
, Epstein
, A. H.
, Giles
, M. B.
, Haimes
, R.
, and Norton
, R. J. G.
, 1989
, “Fully Scaled Transonic Turbine Rotor Heat Transfer Measurements
,” ASME J. Turbomach.
, 111
, pp. 1
–7
.18.
Michelassi
, V.
, Martelli
, F.
, De´nos
, R.
, Arts
, T.
, and Sieverding
, C. H.
, 1999
, “Unsteady Heat Transfer in Stator–Rotor Interaction by Two Equation Turbulence Model
,” ASME J. Turbomach.
, 121
, pp. 436
–447
.19.
De´nos
, R.
, Sieverding
, C. H.
, Arts
, T.
, Brouckaert
, J. F.
, Paniagua
, G.
, and Michelassi
, V.
, 1999
, “Experimental Investigation of the Unsteady Rotor Aerodynamics of a Transonic Turbine Stage
,” IMechE J. Power Energy
, 23
, No A4
, pp. 327
–338
.20.
Sieverding, C. H., Vanhaeverbeek, C., and Schulze, G., 1992, “An Opto-Electronic Data Transmission System for Measurements on Rotating Turbomachinery Components,” ASME Paper No. 92-GT-337.
21.
Byrne, C. M., and Davies, M. R. D., 1996, “Data Transmission Systems for a Transient Gas Turbine Rotor,” ASME Paper No. 96-GT-514.
22.
Ainsworth, R., 1995, “Recent Development in Fast Response Aerodynamic Technology,” Von Karman Institute Lecture Series 1995-01 on Measurement Techniques.
23.
Jameson, A., 1991, “Time Dependent Calculations Using a Multigrid With Applications to Unsteady Flows Past Airfoils and Wings,” AIAA Paper No. 91-1596.
24.
Michelassi, V., and Martelli, F., 1998, “Modeling of Unsteady-Heat Transfer in a Transonic Turbine Stage,” AIAA Paper No. 98-2555.
25.
Durbin
, P. A.
, 1996
, “On the k-ε Stagnation Point Anomaly
,” Int. J. Heat Fluid Flow
, 17
, pp. 89
–90
.26.
Abu-Ghannam
, B. J.
, and Shaw
, R.
, 1980
, “Natural Transition of Boundary Layers—The Effects of Turbulence, Pressure Gradient, and Flow History
,” J. Mech. Eng. Sci.
, 22
, No. 5
, pp. 213
–228
.27.
Kapteijn
, C.
, Amecke
, J.
, and Michelassi
, V.
, 1996
, “Aerodynamic Performance of a Transonic Turbine Guide Vane With Trailing Edge Coolant Ejection: Part 1—Experimental Approach
,” ASME J. Turbomach.
, 118
, pp. 519
–528
.28.
Sieverding
, C. H.
, Arts
, T.
, De´nos
, R.
, and Martelli
, F.
, 1996
, “Investigation of the Flow Field Downstream of a Turbine Trailing Edge Cooled Nozzle Guide Vane
,” ASME J. Turbomach.
, 118
, pp. 291
–300
.29.
Dietz, A. J., and Ainsworth, R. W., 1992, “Unsteady Pressure Measurements on the Rotor of a Model Turbine Stage in a Transient Flow Facility,” ASME Paper No. 92-GT-156.
30.
Hodson
, H. P.
, 1985
, “Measurements of Wake-Generated Unsteadiness in the Rotor Passages of an Axial Flow Turbine
,” ASME J. Eng. Gas Turbines Power
, 107
, pp. 467
–476
.31.
Hilditch, M. A., Smith, G. C., Anderson, J. S., and Chana, K. S., 1996, “Unsteady Measurements in an Axial Flow Turbine,” Proc. 85th Propulsion and Energetic Panel Symposium on Loss Mechanism and Unsteady Flows in Turbomachines, Derby, UK, AGARD CP No. 571.
32.
Hodson
, H. P.
, 1985
, “An Inviscid Blade-to-Blade Prediction of a Wake-Generated Unsteady Flow
,” ASME J. Eng. Gas Turbines Power
, 107
, pp. 337
–344
.33.
Venable
, B. L.
, Delaney
, R. A.
, Busby
, J. A.
, Davis
, R. L.
, Dorney
, D. J.
, Dunn
, M. G.
, Haldeman
, C. W.
, and Abhari
, R. S.
, 1999
, “Influence of Vane-Blade Spacing on Transonic Turbine Stage Aerodynamics, Part 1: Time-Averaged Data and Analysis
,” ASME J. Turbomach.
, 121
, pp. 663
–672
.Copyright © 2001
by ASME
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