Numerical Simulation of Performance of an Axial Turbine First Stage

Monteiro, Vinícius Guimarães; Zaparoli, Edson Luiz; Andrade, Cláudia Regina de; Lima, Rosiane Cristina de

doi:10.5028/jatm.2012.04025411

Abstract:

This work has presented the first stage performance at design and off-design operating points of an axial turbine, with two stages using a numerical simulation. Experimental methods of predicting the performance of axial turbine is costly and time consuming compared to the computationalfluid dynamics approach. Therefore, computational techniques were adopted to determine the stage performance. This stuãy analyzed the first stage performance of an axial flow turbine, using a computational tool for simulating the steady state two/three-dimensional viscous flow. A computational fluid dynamics software was used to solve the rans equations with the spalart-allmaras turbulence model. The computational fluid dynamics results were compared with those obtained from the mean line loss model code. The comparisons have been conducted to provide a pretest performance for the turbine first stage.

Keywords:
Axial Turbines; Gas Turbines; Computational Fluid Dynamics; Numerical Simulation; Performance

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ACKNOWLEDGMENTS

The authors thank Vale Soluções em Energia (VSE) for the support to this research.

REFERENCES

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Publication Dates

Publication in this collection
Apr-Jun 2012

History

Received
16 Nov 2011
Accepted
15 Feb 2012

This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

[1] ANSYS, 2009a, "Fluent 12.0 theory guide", Canonsburgh, PA, Cap. 18.

[2] ANSYS, 2009b, "Ansys CFX-solver theory guide: release 12.0", Canonsburgh, PA, Cap. 9.

[3] Denton, J.D., 1993, "The 1993 IGTI scholar lecture: loss mechanisms in turbomachines", Journal of Turbomachinery, Vol. 115, pp. 621-656.

[4] Denton, J.D., Xu, L., 2002, "CFD for turbomachinery aerodynamic design", London: [s.n.], IMECHE Grand review of CFD.

[5] Dorney, D.J. et al, 2003, "Off-design performance of a multistage supersonic turbine", In: Aerospace Sciences Meeting and Exhibit, 41th Aerospace Sciences Meeting & Exhibit, Reno, Proceedings...Washington, DC: AIAA; 2003.

[6] Eulitz, F., Engel, K., 1997, "Numerical investigation of wake interaction in a low pressure turbine", In: 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference And Exhibit, Seattle, WA. Proceedings...Washington, DC: AIAA.

[7] Fletcher, C.A.J., 1991, "Computational techniques for fluid dynamics", 2. ed., Berlin, Springer-Verlag, Vol. 2, Cap. 1.

[8] Fortuna, A.O., 2000, "Técnicas computacionais para dinâmica dos fluidos: conceitos básicos e aplicações", São Paulo, Edusp.

[9] Haglind, F., Elmergaard, B., 2009, "Methodologies for predicting the part-load performance of aero-derivative gas turbines", Energy, Vol. 34, pp. 1484-1492.

[10] Hess, R., 2006, "Estudo comparativo de método de análise de desempenho de turbinas axiais", PhD Thesis, Instituto Tecnológico de Aeronautica, São José dos Campos, S.P., Brazil, 105p.

[11] Javaherchi, T., 2010, "Review of spalart-allmaras turbulence model and its modifications", Hartford, CT, Rensslaer Polytechnic Institute.

[12] Menter, F.R., 2003, "Turbulence modelling for turbomachinery", QNET CFD Network Newsletter, Vol. 2, No. 3, pp. 10-13.

[13] Murari, S. et al, 2011, "CFD aerodunamic CFD validation of a two-stage high pressure turbine", In: ASME TURBO EXPO, 2011, Vancouver, British Columbia, Proceedings... New York, ASME.

[14] Pecnik, R. et al, 2005, "Numerical Investigation of the Secondary Flow of a Transonic Turbine Stage Using Various Turbulencec Closures", In ASME Turbo Expo 2005, Power for Land, Sea and Air, Reno-Tahoe, ASME Paper GT2005-68754.

[15] Saravanamuttoo, H.I.H., 1992, "Overview on basis and use of performance prediction methods", Carleton University Ottawa, AGARD Advisory Report, LS-183.

[16] Saravanamuttoo, H.I.H. et al, 2001, "Gas turbine theory", 5. ed., Harlow, Prentice Hall, 2001, Cap. 7.

[17] Spalart, P.R., Allmaras, S.R.A., 1992, "One equation turbulence model for aerodynamic flow", Washington, DC, AIAA, 1992. (AIAAPaper 92-0439).

[18] Tannehill, J.C. et al, 1997, "Computational fluid mechanicsandheat transfer", 2. ed. Philadelphia, Taylor & Francis, 1997, pp. 272-280.

[19] Tomita, J.T., Barbosa, J.R., 2011, "Influence of inflow turbulence intensity variations in an axial turbine using 3D RANS computations", In: International Congress of Mechanical Engineering, 21, Natal, Proceedings... Rio de Janeiro, ABCM, 2011.

[20] Toussaint, C. et al, 1997, "Comparison of steady and unsteady 3D viscous flow computations through a transonic turbine stage", Chatillon, FR, Office National d'Etudes et de Recherches Aerospatiales (ONERA), ONERA-TAP-97-147.

[21] Welch, G.E., 2011, "Computational assessment of the aerodynamic performance of a variable-speed power turbine for large civil tilt-rotor application", Cleveland, Ohio, NASA John H. Glenn Research Center at Lewis Field, 2011.

[22] Wilcox, D.C., 1993, "Turbulence modeling for CFD", 2. ed., La Canada, CA, DCW Industries.

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