Abstract
Numerical and experimental investigations are conducted to study the jet characteristics on the pressure side of a film-cooled turbine guide vane. CFD simulations, including both the steady RANS turbulence model, \(k-\omega \) shear stress transport (SST), as well as the hybrid approach, Scale-Adaptive Simulation (SAS), are utilized to comprehend the turbulent flow structures and the vortex dynamics associated to the film cooling jet. For this purpose the commercial CFD code FLUENT has been utilized to study flow with injection of coolant through fan-shaped holes for two blowing ratios (0.6 and 1.2). Although, both turbulence models predict the vortical structures and jet dynamics similarly, the findings suggest that by resolving large energy containing vortices, the SAS model can improve the modeling of mixing properties and thereby approximation of the surface temperature.
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References
J.D. Ferguson, J.H. Leylek, F.A. Buck, Film cooling on a modern HP turbine blade: part III: axial shaped holes, ASME paper GT2002-30522 (2002)
K.L. Harrison, D.G. Bogard, Comparision of RANS turbulence models for prediction of film cooling performance, ASME paper GT2008-51423 (2008)
W. Colban, K.A. Thole, M. Haendler, Experimental and computational comparison of fan-shaped film cooling on a turbine surface. ASME J. Turbomach. 129, 2331 (2007)
X. Guo, W. Schr\(\ddot{{\rm o}}\)der, M. Meinke, Large-eddy simulations of film cooling flows. Comput. Fluids 35, 587606 (2006)
P. Renze, W. Schr\(\ddot{{\rm o}}\)der, M. Meinke, Large-eddy simulation of film cooling flows at density gradients. Int. J. Heat Fluid Flow 29(1), 18–34 (2008)
Y.V. Peet, S.K. Lele, Near field of film cooling jet issued into a flat plate boundary layer: LES study, ASME Turbo Expo (GT2008-50420) (2008)
H.N. Nadali, M. Karlsson, M. Kinell, E. Utriainen, Film-cooling performance of a turbine vane suction side: the showerhead effect on film-cooling hole placement for cylindrical and fan-shaped holes. J. Turbomach. 137(9), 091005 (2015)
F.R. Menter, Two-equation eddy-viscosity turbulence models for engineering applications. AIAA J. 32(8), 15981605 (1994)
F.R. Menter, Y. Egorov, The scale-adaptive simulation method for unsteady turbulent flow predictions. Part 1: theory and model description. Flow Turbul. Combust. 85(1), 113–138 (2010)
J.C. Rotta, Turbulente Strmungen (Teubner, Stuttgart, 1972)
S. Pope, Turbulent Flows (Cambridge University Press, 2000)
J.H. Leylek, R.D. Zerkle, Discrete-jet film cooling: a comparison of computational results with experiments. J. Turbomach. 116(3), 358–368 (1994)
W.F. Colban, K.A. Thole, D.G. Bogard, A film-cooling correlation for shaped holes on a flat-plate surface. J. Turbomach. 133(1), 011002 (2011)
Acknowledgments
This research has been funded by the Swedish Energy Agency, Siemens Industrial Turbomachinery AB, Volvo Aero Corporation, and the Royal Institute of Technology through the Swedish research program TURBOPOWER, the support of which is gratefully acknowledged.
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Nadali Najafabadi, H., Farhanieh, A., Gårdhagen, R., Karlsson, M. (2016). On the Characteristics of the Jet in Film Cooling Applications. In: Segalini, A. (eds) Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). Springer Proceedings in Physics, vol 185. Springer, Cham. https://doi.org/10.1007/978-3-319-30602-5_56
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DOI: https://doi.org/10.1007/978-3-319-30602-5_56
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