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Experimental analysis of the aerodynamic performance of an innovative low pressure turbine rotor

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Abstract

In the present work the aerodynamic performances of an innovative rotor blade row have been experimentally investigated. Measurements have been carried out in a large scale low speed single stage cold flow facility at a Reynolds number typical of aeroengine cruise, under nominal and off-design conditions. The time-mean blade aerodynamic loadings have been measured at three radial positions along the blade height through a pressure transducer installed inside the hollow shaft, by delivering the signal to the stationary frame with a slip ring. The time mean aerodynamic flow fields upstream and downstream of the rotor have been measured by means of a five-hole probe to investigate the losses associated with the rotor. The investigations in the single stage research turbine allow the reproduction of both wake-boundary layer interaction as well as vortex-vortex interaction. The detail of the present results clearly highlights the strong dissipative effects induced by the blade tip vortex and by the momentum defect as well as the turbulence production, which is generated during the migration of the stator wake in the rotor passage. Phase-locked hot-wire investigations have been also performed to analyze the time-varying flow during the wake passing period. In particular the interaction between stator and rotor structures has been investigated also under off-design conditions to further explain the mechanisms contributing to the loss generation for the different conditions.

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References

  1. Dènos, R., 2002. “Influence of temperature transients and centrifugal force on fast-response pressure trans- ducers”. Experiments in fluids, 33(2), pp. 256–264.

    Article  ADS  Google Scholar 

  2. Valenti, E., Halama, J., Dènos, R., and Arts, T., 2002. “Investigation of the 3D unsteady rotor pressure field in a HP turbine stage”. In ASME Turbo Expo 2002: Power for Land, Sea, and Air, American Society of Mechanical Engineers, Amsterdam, The Netherlands, pp. 383–392.

    Google Scholar 

  3. Dènos, R., Sieverding, C., Arts, T., Brouckaert, J., Paniagua, G., and Michelassi, V., 1999. “Experimental investigation of the unsteady rotor aerodynamics of a transonic turbine stage”. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 213(4), pp. 327–338.

    Google Scholar 

  4. Dènos, R., Arts, T., Paniagua, G., Michelassi, V, and Martelli, F., 2001. “Investigation of the unsteady rotor aerodynamics in a transonic turbine stage”. Journal of Turbomachinery, 123(1), pp. 81–89.

    Article  Google Scholar 

  5. Schröder, T., 1991. “Investigations of blade row interaction and boundary layer transition phenomena in a multistage aero engine low-pressure turbine by measurements with hot-film probes and surface-mounted hotfilm gauges”. Lecture series-von Karman Institute for fluid dynamics, 6, pp. B1–B46, Brussels, Belgium.

    Google Scholar 

  6. Walker, G., Hodson, H., and Shin, H., 1997. “Boundary layer development in axial compressors and turbines: Part 3 of 4, LP turbines1”. Journal of turbomachinery, 119, p. 225.

    Article  Google Scholar 

  7. Hodson, H. P., and Howell, R. J., 2005. “The role of transition in high-lift low-pressure turbines for aero- engines”. Progress in Aerospace Sciences, 41(6), pp. 419–454.

    Article  ADS  Google Scholar 

  8. Satta, F., Simoni, D., Ubaldi, M., Zunino, P., and Bertini, F., 2010. “Experimental investigation of separation and transition processes on a high-lift low- pressure turbine profile under steady and unsteady in- flow at low Reynolds number”. Journal of Thermal Science, 19(1), pp. 26–33.

    Article  ADS  Google Scholar 

  9. Arndt, N., 1993. “Blade row interaction in a multi- stage low-pressure turbine”. Journal of turbomachinery, 115(1), pp. 137–146.

    Article  Google Scholar 

  10. Pullan, G., 2006. “Secondary flows and loss caused by blade row interaction in a turbine stage”. Journal of turbomachinery, 128(3), pp. 484–491.

    Article  MathSciNet  Google Scholar 

  11. P. Chaluvadi, V., Kalfas, A., Banieghbal, M., Hodson, H., and Denton, J., 2001. “Blade-row interaction in a highpressure turbine”. Journal of Propulsion and Power, 17(4), pp. 892–901.

    Article  Google Scholar 

  12. Schlienger, J., Kalfas, A., and Abhari, R., 2005, “Vortexwake- blade interaction in a shrouded axial turbine”. Journal of Turbomachinery, 127(4), pp. 699–707.

    Article  Google Scholar 

  13. Gaetani, P., Persico, G., Dossena, V., and Osnaghi, C., 2007. “Investigation of the flow field in a high-pressure turbine stage for two stator-rotor axial gaps, part I: Threedimensional time-averaged flow field”. Journal of turbomachinery, 129(3), pp. 572–579.

    Article  Google Scholar 

  14. Gaetani, P., Persico, G., Dossena, V., and Osnaghi, C., 2007. “Investigation of the flow field in a high-pressure turbine stage for two stator-rotor axial gaps, part II: Unsteady flow field”. Journal of turbo- machinery, 129(3), pp. 580–590.

    Article  Google Scholar 

  15. Lengani, D., Paradiso, B., and Marn, A., 2012. “A method for the determination of turbulence intensity by means of a fast response pressure probe and its application in a LP turbine”. Journal of Thermal Science, 21(1), pp. 21–31.

    Article  ADS  Google Scholar 

  16. Lengani, D., Paradiso, B., Marn, A., and Göttlich E., 2012. “Identification of spinning mode in the un- steady flow field of a low pressure turbine”. Journal of Turbomachinery, 134(5), Paper. 051032.

    Google Scholar 

  17. Canepa, E., Formosa, P., Lengani, D., Simoni, D., Ubaldi, M., and Zunino, P., 2007. “Influence of aero- dynamic loading on rotor-stator aerodynamic inter- action in a two-stage low pressure research turbine”. Journal of Turbomachinery, 129(4), pp. 765–772.

    Article  Google Scholar 

  18. Marconcini, M., Rubechini, F., Pacciani, R., Arnone, A., and Bertini, F., 2012. “Redesign of high-lift low pressure turbine airfoils for low speed testing”. Journal of Turbomachinery, 134(5), p. 051017.

    Article  Google Scholar 

  19. Perdichizzi, A., Ubaldi, M., and Zunino, P., 1990. “A hot wire measuring technique for mean velocity and Reynolds stress components in compressible flow”. In Proceedings of the 10th Symposium on Measuring Techniques for Transonic and Supersonic Flows in Cascades and Turbomachines, Brussels, Belgium.

    Google Scholar 

  20. Infantino, D., Satta, F., Simoni, D., Ubaldi, M., Zunino, P. and Bertini, F., 2015, “Phase-locked Investigation of Secondary Flows Perturbed by Passing Wakes in a High- Lift LP Turbine Cascade”. Proceeding of ASME TurboExpo 2015. Hyderabad, India, GT2015-42480.

    Google Scholar 

  21. Simoni, D., Berrino, M., Ubaldi, M., Zunino, P., and Bertini, F., 2015. “Off-design performance of a highly loaded low pressure turbine cascade under steady and unsteady incoming flow conditions”. Journal of Turbomachinery, 137(7), Paper. 071009.

    Google Scholar 

  22. Howell, R., Hodson, H., Schulte, V., Schiffer, H.- P., Haselbach, F., and Harvey, N., 2001. “Boundary layer development in the BR710 and BR715 LP turbines: The implementation of high lift and ultra-high lift concepts”. In ASME Turbo Expo 2001: Power for Land, Sea, and Air, American Society of Mechanical Engineers, New Orleans, USA, Paper No. 2001-GT-0441.

    Google Scholar 

  23. Satta, F., Simoni, D., Ubaldi, M., Zunino, P., Bertini, F., and Spano, E., 2009. Time-varying flow at the exit of highly loaded LP turbine linear cascade under unsteady flow conditions. Proceeding of the 8th European Turbomachinery Conference, Graz.

    Google Scholar 

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Authors and Affiliations

  1. DIME, Università degli Studi di Genova, Via Montallegro 1, I-16145, Genova, Italy

    Daniele Infantino, Francesca Satta, Daniele Simoni, Marina Ubaldi & Pietro Zunino

  2. Avio Aero, Viale I Maggio 56, I-10040, Rivalta (TO), Italy

    Francesco Bertini

Authors
  1. Daniele Infantino
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  2. Francesca Satta
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  3. Daniele Simoni
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  4. Marina Ubaldi
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  5. Pietro Zunino
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  6. Francesco Bertini
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Additional information

This research has been funded by the European Community’s Seventh Framework Programme (FP7/2007-2013) for the Clean Sky Joint Technology Initiative under grant agreement n° [323301].

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Infantino, D., Satta, F., Simoni, D. et al. Experimental analysis of the aerodynamic performance of an innovative low pressure turbine rotor. J. Therm. Sci. 25, 22–31 (2016). https://doi.org/10.1007/s11630-016-0830-6

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  • DOI: https://doi.org/10.1007/s11630-016-0830-6

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