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Numerical investigation of particle deposition on converging slot-hole film-cooled wall

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Abstract

Numerical research on the dilute particles movement and deposition characteristics in the vicinity of converging slot-hole(console) was carried out, and the effect of hole shape on the particle deposition characteristics was investigated. The EI-Batsh deposition model was used to predict the particle deposition characteristics. The results show that the console hole has an obvious advantage in reducing particle deposition in comparison with cylindrical hole, especially under higher blowing ratio. The coolant jet from console holes can cover the wall well. Furthermore, the rotation direction of vortices near console hole is contrary to that near cylindrical hole. For console holes, particle deposition mainly takes place in the upstream area of the holes.

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Authors and Affiliations

  1. College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

    Jun-hui Zhou  (周君辉) & Jing-zhou Zhang  (张靖周)

  2. Jiangsu Province Key Laboratory of Aerospace Power System, Nanjing, 210016, China

    Jun-hui Zhou  (周君辉) & Jing-zhou Zhang  (张靖周)

Authors
  1. Jun-hui Zhou  (周君辉)
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  2. Jing-zhou Zhang  (张靖周)
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Corresponding author

Correspondence to Jing-zhou Zhang  (张靖周).

Additional information

Foundation item: Project(51276090) supported by the National Natural Science Foundation of China; Project(CXLX13_166) supported by Funding of Jiangsu Innovation Program for Graduate Education; Project supported by the Fundamental Research Funds for the Central Universities, China

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Zhou, Jh., Zhang, Jz. Numerical investigation of particle deposition on converging slot-hole film-cooled wall. J. Cent. South Univ. 24, 2819–2828 (2017). https://doi.org/10.1007/s11771-017-3697-0

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  • DOI: https://doi.org/10.1007/s11771-017-3697-0

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