Aerothermodynamics

Assessment of the Turbulence Characteristics of Shaped Film Cooling Hole with Scale Resolving Simulation

  • WANG Qingsong ,
  • SU Xinrong ,
  • YUAN Xin
Expand
  • Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China

Online published: 2023-11-30

Supported by

This study is supported by the National Natural Science Foundation of China (Project Grant No. 51876098) and National Science and Technology Major Project (J2019-III-0007-0050). This research is also sponsored by the Open Fund from Science and Technology on Thermal Energy and Power Laboratory (TPL2018B05).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022

Abstract

The turbulence characteristics of the shaped hole film cooling are very complex. In this study, Large Eddy Simulation (LES) and Reynolds-averaged Navier-Stokes (RANS) are used to study the film cooling of the shaped hole. The time-averaged results are compared with the experimental data in the literature. Because of the eddy-viscosity model, the RANS method roughly deals with the simulation of boundary layer, which leads to a large deviation. The RANS results are compared with the LES results to identify the weaknesses of the Realizable k-ε model in predicting the turbulence characteristics of the shaped hole film cooling. The eddy viscosity hypothesis and the temperature gradient diffusion hypothesis are evaluated using LES data. Furthermore, the turbulence characteristics of the in-hole flow are analysed with the help of the incremental Proper Orthogonal Decomposition (iPOD). The turbulence presents strong anisotropy and some convection structures are induced from the shear zone. 

Cite this article

WANG Qingsong , SU Xinrong , YUAN Xin . Assessment of the Turbulence Characteristics of Shaped Film Cooling Hole with Scale Resolving Simulation[J]. Journal of Thermal Science, 2022 , 31(1) : 47 -61 . DOI: 10.1007/s11630-022-1545-5

References

[1] Bogard D.G., Thole K.A., Gas turbine film cooling. Journal of Propulsion and Power, 2006, 22(2): 249–   270.
[2] Goktepeli I., Atmaca U., Cakan A., Investigation of heat transfer augmentation between the ribbed plates via taguchi approach and computational fluid dynamics. Journal of Thermal Science, 2020, 29: 647–666.
[3] Galeazzo F., Donnert G., Habisreuther P., Zarzalis N., Valdes R.J., Krebs W., Measurement and simulation of turbulent mixing in a jet in crossflow. ASME. Journal of Engineering for Gas Turbines and Power, 2011, 133(6): 061504. 
[4] Laroche E., Fenot M., Dorignac E., Vuillerme J.J., Brizzi, L.E., Larroya J.C., A combined experimental and numerical investigation of the flow and heat transfer inside a turbine vane cooled by jet impingement. Journal of Turbomachinery, 2018, 140(3): 031002.
[5] Foroutan H., Yavuzkurt S., Numerical simulations of the near-field region of film cooling jets under high free stream turbulence: Application of rans and hybrid urans/large eddy simulation models. Journal of Heat Transfer, 2015, 137(1): 011701.
[6] Bergeles G., Gosman A.D., Launder B.E., The turbulent jet in a cross stream at low injection rates: a three-dimensional numerical treatment. Numerical Heat Transfer, Part B: Fundamentals, 1978, 1(2): 217–242.
[7] Lakehal D., Near-wall modeling of turbulent convective heat transport in film cooling of turbine blades with the aid of direct numerical simulation data. Journal of Turbomachinery, 2002, 124(3): 485–498.
[8] Bianchini C., Andrei L., Andreini A., Facchini B., Numerical benchmark of nonconventional RANS turbulence models for film and effusion cooling. Journal of turbomachinery, 2013, 135(4): 041026.
[9] Ling J., Ruiz A., Lacaze G., Oefelein J., Uncertainty analysis and data-driven model advances for a jet-in-crossflow. Journal of Turbomachinery, 2017, 139(2): 021008.
[10] Sarkar S., Babu H., Large eddy simulation on the interactions of wake and film-cooling near a leading edge. Journal of Turbomachinery, 2014, 137(1): 011005.
[11] Stratton Z.T., Shih T.I.P., Identifying weaknesses in eddy-viscosity models for predicting film cooling via large-eddy simulations. Journal of Propulsion and Power, 2019, 35(3): 583–594.
[12] Schroeder R.P., Thole K.A., Adiabatic effectiveness measurements for a baseline shaped film cooling hole. Proceedings of the ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. Volume 5B: Heat Transfer, 2014. V05BT13A036. ASME. 
DOI: 10.1115/GT2014-25992.
[13] Wang Q.S., Su X.R., Yuan X., Large-eddy simulation of shaped hole film cooling with the influence of cross flow. International Journal of Turbo & Jet-Engines. 2020, pp. 000010151520200012. DOI: 10.1515/tjj-2020-0012.

Outlines

/