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Influence of Bowed Stator Vanes on the Two-Stage Turbine Efficiency
Języki publikacji
Abstrakty
W artykule opisano badania eksperymentalne I numeryczne wpływu wygięcia łopatek na struktury przepływu oraz na ogólną sprawność maszyny. Niski współczynnik kształtu kreuje skomplikowany przepływ trójwymiarowy zdominowany przez przepływy wtórne. Celem pracy było zredukowanie tego wpływu poprzez zmianę wygięcia łopatek pierwszej kierownicy. Zmodyfikowane łopatki kierownic zmniejszyły te wpływy. Jest to powiązane ze śladami z pierwszej kierownicy i strukturami wirowymi, które wytwarzają obszary o niskiej wartości pędu.
In this paper some experimental and numerical investigations of bowed vanes influence on flow structures and the overall efficiency of the machine are described. A low shape coefficient involves a complicated three-dimensional flow dominated by secondary flows. The main goal of this work was to reduce an influence of these structures by bowing the first stator vanes. The modified vanes lowered these influences. This is due to the first stator wakes and the vortex structures, which produce low momentum flow zones.
Rocznik
Tom
Strony
89-98
Opis fizyczny
Bibliogr. 32 poz.
Twórcy
Bibliografia
- [1] Krysinski J., Gallus H.E., Smolny A., Blaszczak J.R., 1995, Axial Two-Stage Turbine Test Rig for Unsteady Flow Measurements, Int. Conf. SYMKOM'95, CMP-Turbomachinery, Vol. 108, TU Lodz, pp.99-106.
- [2] Eulitz F., 2000, Modelling and simulation of transition phenomena in unsteady turbomachinery flow, ISUAAAT '2000, Lyon, France.
- [3] Howell R.J., Ramesh O.N., Hodson H.P., Harvey N.W., Schulte V., 2001, High Lift and Aft-Loaded Profiles for Low-Pressure Turbines, ASME J. of Turbomachinery, 123, pp. 181-188.
- [4] Reynolds W.C., Alonso J.J., Fatica M., 2003, Aircraft Gas Turbine Engine Simulations, AIAA2003-3698.
- [5] Dossena V., D'Ippolito G., Pesatori E., 2004, Stagger Angle and Pitch-Cord Ratio Effects on Secondary Flows Downstream of a Turbine Cascade at Several Off-Design Conditions, GT2004-54083.
- [6] Benner M., Sjolander S., Moustapha S., 2004, Measurements of Secondary Flows of a turbine Cascade at Off-Design Incidence, GT2004-53786.
- [7] Arnone A., 2004, Parametric Optimization of a High-Lift Turbine Vane, GT2004-54308.
- [8] Stieger R.D., Hodson H.P., 2003, The Transition Mechanism of Highly-Loaded LP Turbine Blades, GT2003-38304.
- [9] Schobeiri M.T., Ozturk B., 2004, Experimental Study of the Effect of Periodic Unsteady Wake on Boundary Layer Development, Separation, and Re-Attachment of a Low Pressure Turbine Blade, GT2004-53929.
- [10] Schlienger J., Kalfas A.I., Abhari R.S., 2004, Vortex-Wake-Blade Interaction in a Shrouded Axial Turbine, GT2004-53915.
- [11] Dorney D., Sondak D., Cizmas P., Saren V., Savin N., 1999, Full-Annulus Simulations of Clocking in a 1.5 Stage Axial Compressor, ASME 99-GT-023.
- [12] Haldeman C., Krumanaker M., Dunn M., 2003, Influence of Clocking and Vane/Blading Spacing on the Unsteady Surface Pressure Loading for a odern Stage and One-Half Transonic Turbine, ASME GT2003-38724.
- [13] He L., Chen T., Wells R., Li Y., Ning W., 2002, Analysis of Rotor-Rotor and Stator-Stator Interferences in Multi-Stage Turbomachines, ASME J. of Turbomachinery, 124, pp. 564-571.
- [14] Huber F., Johnson P., Sharma O., Staubach J., Gaddis S., 1996, Performance Improvement Through Indexing of Turbine Airfoils: Part 1 - Experimental Investigation, ASME J. of Turbomachinery, 118, pp. 630-635.
- [15] Hummel, F. 2002, Wake-Wake Interaction and Its Potential for Clocking in a Transonic HP Turbine. ASME J. of Turbomachinery, 124, pp. 69-635.
- [16] Jouini D., Little D., Bancalari E., Dunn M., Haldeman C., Johnson P., 2003, Experimental Investigation of Airfoil Clocking Impacts on Aerodynamic Performance in a Two Stage Turbine Test Rig, ASME GT2003-38872.
- [17] Saren, V., Savin N., 2000, Hydrodynamic Interaction of a Stator-Rotor-Stator System of an Axial Turbomachine, Fluid Mechanics 3/2000, Russian Academy of Sciences, Moscow, pp. 145-158 (in Russian).
- [18] Reinmoeller U., Stephan B., Schmidt S., Niehuis R., 2002, Clocking Effects in a 1.5 Stage Axial Turbine, ASME, J. of Turbomachinery, 124, pp. 52-60.
- [19] Koenig S., Heidecke A., Stoffel B., Fiala A., Engel K., 2004, Clocking Effects in a 1.5-Stage Axial Turbine - Boundary Layer Behaviour at Midspan, ASME GT2004-54055.
- [20] Haldeman C., Krumanaker M., Dunn M., 2003, Influence of Clocking and Vane/Blade Spacing on the Unsteady Surface Pressure Loading for a Modern Stage and One-Half Transonic Turbine, ASME 2003-38724.
- [21] Gadea J., Denos R., Paniagua G., Billiard N., Sieverding C., 2004, Effect of Clocking on the Second Stator Pressure Field of a One and a Half Stage Transonic Turbine, ASME GT2004-53463.
- [22] Haldeman C., Dunn M., Barter J., Green B., Bergholz R., 2004, Experimen-tal Investigation of a Vane Clocking in a 1.5 Stage HP Turbine, ASME GT2004-53477.
- [23] Krysinski J., Gallus H., Smolny A., Blaszczak J., 1999, Stator Wake Clocking Effects on 3D Unsteady Flows In a Two-Stage Turbine, 3rd EuroConf. On Turbomachinery, IMechE, C557/017/99, pp. 323-332, London.
- [24] Krysinski J., Smolny A., Blaszczak J., Gallus H., 2000, 3D Unsteady Flow Experimental Investigations in a Two-Stage Low-Pressure Turbine, ISUAAAT'2000, Lyon, France, pp. 515-523.
- [25] Krysinski J., Blaszczak J., Smolny A., 2001, Stator Clocking Effect on Efficiency of a Two-Stage Low-Pressure Model Turbine. 4th EuroConf. on Turbomachinery, ATI-CST090/01, pp. 1045-1051, Florence, Italy.
- [26] Smolny A., Blaszczak J., 1997, Experimental Investigations Of Unsteady Flow Fields In A Two-Stage Turbine, 2nd EuroConf. on Turbomachinery, Antwerp, Belgium.
- [27] Krysinski J., Gallus H., Smolny A., Blaszczak J., Walraevens R., 1998, Experimental Investigation of 3D Flow In a Two-Stage Turbine. 7 Int. Conf. Rotary Fluid Flow Machines, Rzeszow, Poland, pp. 215-224.
- [28] Howell R., Hodson H., 2000, Unsteady flow: its role in the low pressure turbine, ISUAAAT'2000, Lyon, France, pp. 58-94.
- [29] Krysinski J., Blaszczak J., Smolny A., 2003, Badania przepływów 3D przez stopnie turbinowe, Projekt badawczy # 1672/T10/2000/19.
- [30] Blaszczak J., 2005, Badania wpływu obciążenia stopnia turbiny na warstwy przyścienne i generowanie hałasu, Projekt badawczy #4T10B04323.
- [31] Blaszczak J., 2005, Efficiency Improvement and Noise Reduction Through Stator-Stator Clocking Effect of a Two-Stage Turbine, ASME GT2005-68833
- [32] Krysinski J., Blaszczak J., Smolny A., Stator Clocking Effects On 3D Flow in a Two-Stage Low-Pressure Turbine, ASME GT2005-68811.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-LOD9-0001-0009