Browse > Article
http://dx.doi.org/10.3795/KSME-B.2013.37.4.415

Axial Turbine Aerodynamic Design of Small Heavy-Duty Gas Turbines  

Kim, Joung Seok (Doosan Heavy Industries & Construction)
Lee, Wu Sang (Doosan Heavy Industries & Construction)
Ryu, Je Wook (Doosan Heavy Industries & Construction)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.4, 2013 , pp. 415-421 More about this Journal
Abstract
This study describes the aerodynamic design procedure for the axial turbines of a small heavy-duty gas turbine engine being developed by Doosan Heavy Industries. The design procedure mainly consists of three parts: namely, flowpath design, airfoil design, and 3D performance calculation. To design the optimized flowpath, through-flow calculations as well as the loss estimation are widely used to evaluate the effect of geometric variables, for example, shape of meridional plane, mean radius, blades axial gap, and hade angle. During the airfoil design procedure, the optimum number of blades is calculated by empirical correlations based on the in/outlet flow angles, and then 2D airfoil planar sections are designed carefully, followed by 2D B2B NS calculations. The designed planar sections are stacked along the spanwise direction, leading to a 3D surfaced airfoil shape. To consider the 3D effect on turbine performance, 3D multistage Euler calculation, single row, and multistage NS calculations are performed.
Keywords
Gas Turbine; Aerodynamic Design; Flowpath Design; Airfoil Design; 3D Performance Calculation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Wu C. H., 1951, "A General Through Flow Theory of Fluid Flow with Subsonic or Supersonic Velocity in Turbomachines Having Arbitrary Hubs and Casing Shapes," NASA TN2388.
2 Denton, J. D. and Dawes, W. N., 1999, "Computational Fluid Dynamics for Turbomachinery Design," J. Mechanical Engineering Science, Vol. 213, pp 107-124.   DOI   ScienceOn
3 Moroz, L., Govorushchenko, Y. and Pagur, P., 2005, "Axial Turbine Stages Design: 1D/2D/3D Simulation, Experiment, Optimization," ASME Paper, GT2005- 68614.
4 Xu, C. and Amano, R. S., 2002, "A Turbomachinery Blade Design and Optimization Procedure," ASME Paper, GT2002-30541.
5 Kusterer, K., Hagedorn, T. and Bohn D., 2004, "Conjugate Calculations for a Film Cooled Blade Under Different Operating Conditions," ASME Paper, GT2004- 53719.
6 Demeulenaere, A., Ligout, A. and Hirsch, C., 2004, "Application of Multipoint Optimization to the Design of Turbomachinery Blades," ASME Paper, GT2004-53110.
7 Denton, J. D., 1993, "Loss Mechanisms in Turbomachinery," ASME J. Turbomachinery, Vol. 115, pp. 621-656.   DOI
8 Dejc, M. E. and Trojanovskij, B. M., 1973, "Untersuchung und Berechnung Axialer Turbinenstufen, Veb Verlag Technik," Berlin, pp. 207-209.
9 Wei, N., 2000, "Significance of Loss Models in Aerothermodynamic Simulation for Axial Turbines," PhD Thesis, Royal Institute of Technology.
10 Traupel, W., 1966, "Thermische Stromungsmaschinen," Springer Verlag.
11 Zweifel, O., 1945, "The Spacing of Turbomachine Blading, Especially with Large Angular Deflection," Brown Boveri Review 32.
12 Coakley, T. J., 1983, "Turbulence Modeling of the Compressible Navier-Stokes Equations," AIAA Paper, No. 83-1693.
13 Denton, J. D., 2010, "Some Limitations of Turbomachinery CFD," ASME Paper, GT2010-22540.