Abstract:
In order to investigate the double-reverse-jet film cooling (DRJFC), the multi-field coupling calculating method is used to study the effect of geometric parameters on the resultant vortex structure and conjugate thermal-elastic property. The traditional streamwise film cooling is also investigated for comparison. The results indicate that the formation of effective anti-kidney vortices is the key to enhance the dimensionless temperature of DRJFC holes. At low blowing ratios, the streamwise or lateral distance between two DRJFC holes should be increased to widen the transverse shift of the jets, thus, to increase the cooling performance. At high blowing ratios, the lateral distance should be decreased to prevent two jets from separating apart so that the malfunction of the anti-kidney vortices could be avoided. The stress concentration resulting from the nonuniform temperature distribution is considered.
\Bibitem{WanZhaLi19}
\by Zh.~Wang, Ch.~Zhang, S.-J.~Li, J.-J.~Liu, H.-W.~Zhang
\paper Effects of geometry parameters on cooling performance and conjugate thermal-elastic property of double-reverse-jet film cooling
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2019
\vol 60
\issue 6
\pages 97--106
\mathnet{http://mi.mathnet.ru/pmtf377}
\crossref{https://doi.org/10.15372/PMTF20190611}
\elib{https://elibrary.ru/item.asp?id=41444468}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2019
\vol 60
\issue 6
\pages 1060--1067
\crossref{https://doi.org/10.1134/S0021894419060117}
Linking options:
https://www.mathnet.ru/eng/pmtf377
https://www.mathnet.ru/eng/pmtf/v60/i6/p97
This publication is cited in the following 2 articles:
Mohammad Reza Attari, Mahmood Norouzi, Mohammad Hassan Kayhani, Alireza Bakhshinejad Bahambari, Mirae Kim, Kyung Chun Kim, “Effect of oscillating flow on two rows of cooling holes with various configurations on film cooling performance”, Numerical Heat Transfer, Part A: Applications, 2023, 1
Rui Zhu, Guohua Zhang, Shulei Li, Gongnan Xie, “Combined-Hole Film Cooling Designs Based on the Construction of Antikidney Vortex Structure: A Review”, Journal of Heat Transfer, 143:3 (2021)