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Numerical Simulations on Film Cooling Effectiveness from Two Staggered Rows of Coolant Jets

  • Z. Shu
  • C. Dai
  • J. Mi
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

This paper reports numerical simulations of the film cooling performance and flow structure from two staggered rows of coolant jets. The RANS modeling is conducted for the cases that are validated by and matched to the measurements of Sinha et al. (J Turbomach 113:442, 1991) [8]. The cooling effectiveness of two rows of jets is calculated for blowing ratios of 0.5 and 1.0. It is found that the interaction of counter-rotating vortex pairs (CRVPs) generated by two rows of jets enhances the cooling effectiveness significantly. Moreover, the calculations quantify the contribution from each row of coolant jets to the overall cooling performance and find that the second row makes more contribution than does the first row.

Keywords

Jet in crossflow Film cooling RANS 

Notes

Acknowledgements

The support of National Key Research and Development Program of China (No.: 2016YFB0600605) is gratefully acknowledged.

References

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Energy & Resource EngineeringCollege of Engineering, Peking UniversityBeijingChina

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