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http://dx.doi.org/10.6108/KSPE.2018.22.5.001

A Study on the Through-Flow Analysis for a Multi-Stage Axial Turbine Considering Leakage Flows  

Kim, Sangjo (Department of Aerospace Engineering, Pusan National University)
Kim, Kuisoon (Department of Aerospace Engineering, Pusan National University)
Son, Changmin (School of Mechanical Engineering, Pusan National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.22, no.5, 2018 , pp. 1-12 More about this Journal
Abstract
The streamline curvature method is essentially used for the design procedure of multi-stage axial turbines. Moreover, by using this method, it is possible to consider the turbine loss characteristics for real operating conditions at an early design stage. However, there is not enough relevant research in South Korea to support this. In the present study, the streamline curvature method and the empirical equation for calculating the mixing loss are employed to predict the performance of a multi-stage axial turbine with leakage flows. The proposed method is applied to the prediction of the performance of a five-stage axial turbine with leakage flows, as used for an industrial gas turbine of 86 MW in South Korea. The calculation result is compared with 3D CFD data, and the advantages and limitations of the streamline curvature method are described.
Keywords
Through-Flow Analysis; Multi-Stage; Axial Turbine; Leakage Flow; Streamline Curvature Method;
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  • Reference
1 Wu, C.H., "A General Theory of Three-Dimensional Flow in Subsonic, and Supersonic Turbomachines of Axial, Radial and Mixed-Flow types," NACA TN 2604, 1952.
2 Smith, L.H., “The Radial-Equilibrium Equation of Turbomachinery,” Journal of Engineering for Power, Vol. 88, No. 1, pp. 1-12, 1966.   DOI
3 Novak, R.A., “Streamline Curvature Computing Procedures for Fluid-Flow Problems,” Journal of Engineering for Power, Vol. 89, No. 4, pp. 478-490, 1967.
4 Denton, J.D., “Throughflow Calculations For Transonic Axial Flow Turbines,” ASME J. Eng. Power, Vol. 100, No. 2, pp. 212-218, 1978.   DOI
5 Petrovic, M.V., and Wiedermann, A., “Through-flow Analysis of Air-Cooled Gas Turbines,” Journal of Turbomachinery, Vol. 135, No. 6, pp. 061019, 2013.   DOI
6 Petrovic, M.V., and Wiedermann, A., "Fully Coupled Through-Flow Method for Industrial Gas Turbine Analysis," ASME Turbo Expo 2015, Montreal, Quebec, Canada, GT2015-42111, June. 2016.
7 Casey, M., and Robinson, C., “A New Streamline Curvature Throughflow Method for Radial Turbomachinery,” Journal of Turbomachinery, Vol. 132, No. 3, pp. 031021, 2010.   DOI
8 Tiwari, P., Stein, A., and Lin, Y.L., “Dual-Solution and Choked Flow Treatment In a Streamline Curvature Throughflow Solver,” Journal of Turbomachinery, Vol. 135, No. 4, pp. 041004, 2013.   DOI
9 Lee, C., and Kim, H.T., “Applications of Secondary Flow and Spanwise Mixing Models to the Through-Flow Analysis of Axial Flow Turbine,” Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 24, No. 3, pp. 3019-3019, 1996.
10 Hartsel, J.E., "Prediction of Effects of Mass-Transfer Cooling on the Blade-Row Efficiency of Turbine Airfoils," AIAA Paper No. 72-11, 1972.
11 Aungier, R.H., Preliminary Aerodynamic Design of Axial-Flow Turbine Stages, ASME Press, New York, N.Y., U.S.A., 2003.
12 Tournier, J.M., and El-Genk, M.S., “Axial flow, multi-stage turbine and compressor models,” Energy Conversion and Management, Vol. 51, No. 1, pp. 16-29, 2010.   DOI
13 Zhu, J. and Sjolander, S.A., "Improved profile loss and deviation correlations for axial-turbine blade rows," ASME Turbo Expo 2005, Reno, Nevada, USA, GT2005-69077, June. 2005.
14 Benner, M.W., Sjolander, S.A., and Moustapha, S.H., “An empirical prediction method for secondary losses in turbines part I: a new loss breakdown scheme and penetration depth correlation,” Journal of Turbomachinery, Vol. 128, No. 2, pp. 273-280, 2006.   DOI
15 Benner, M.W., Sjolander, S.A., and Moustapha, S.H., “An empirical prediction method for secondary losses in turbines part II: a new secondary loss correlation,” Journal of Turbomachinery, Vol. 128, No. 2, pp. 281-291, 2006.   DOI
16 Kacker, S.C. and Okapuu, U., “A mean line prediction method for axial flow turbine efficiency,” Journal of Engineering for Gas Turbines and Power, Vol. 104, No. 1, pp. 111-119, 1982.
17 Yaras, M.I. and Sjolander, S.A., "Prediction of tip-leakage losses in axial turbines," ASME Turbo Expo, Brussels, Belgium, 90-GT-154, June. 1990.
18 Ainley, D.G. and Mathieson, G.C.R., "A method of performance estimation for axial-flow turbines," British Aeronautical Research Council, Reports and Memoranda No. 2974, 1951.
19 Schlichting, H., "Boundary layer theory," 7th ed. McGraw-Hill Classic Textbook Reissue, New York, N.Y, U.S.A., 1979.
20 Dunham, J. and Came, P.M., “Improvements to the Ainley-Mathieson method of turbine performance prediction,” Journal of Engineering for Gas Turbines and Power, Vol. 92, No. 3, pp. 252-256, 1970.
21 Bang, M., "The Effect of combustor exit flow and endwall leakage flow on a multi-stage turbine system," masters degree, School of Mechanical Engineering, Pusan National University, Pusan, Republic of Korea, 2015.