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Sensitivity Analysis of the Film-Cooling Effectiveness of an Upstream Crescent-Shaped Vortex Generator to Geometric Parameters

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Journal of Engineering Physics and Thermophysics Aims and scope

This study numerically investigates the flow field and cooling effectiveness of a cylindrical flat-plate film-cooling hole with an upstream crescent-shaped vortex generator (CSVG) at the blowing ratio 0.5 and 1.5. With the aid of a new antikidney-shaped vortex pair, this CSVG can markedly improve the cooling effectiveness in comparison to a cylindrical hole. The effects of five geometric parameters completely depicting the CSVG shape are investigated by a four-level and five-parameter Taguchi approach. It is shown that the ranking order of each geometric parameter is improved at both blowing ratios. The preliminary recommended upstream CSVGs with higher area-averaged cooling effectiveness are given for both used ratios.

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Authors and Affiliations

  1. Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, 300384, China

    C. Zhang, L. C. Bai & P. F. Zhang

  2. National Demonstration Center for Experimental Mechanical and Electrical Engineering Education (Tianjin University of Technology), Tianjin, 300384, China

    C. Zhang, L. C. Bai & P. F. Zhang

Authors
  1. C. Zhang
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  2. L. C. Bai
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  3. P. F. Zhang
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Correspondence to C. Zhang.

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Published in Inzhenerno-Fizicheskii Zhurnal, Vol. 94, No. 5, pp. 1161–1171, September–October, 2021.

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Zhang, C., Bai, L.C. & Zhang, P.F. Sensitivity Analysis of the Film-Cooling Effectiveness of an Upstream Crescent-Shaped Vortex Generator to Geometric Parameters. J Eng Phys Thermophy 94, 1137–1146 (2021). https://doi.org/10.1007/s10891-021-02394-7

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  • DOI: https://doi.org/10.1007/s10891-021-02394-7

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