Numerical Investigation of Film Cooling from Two Rows of Holes with Anti-Vortex Holes Attached to the Upstream Row

Authors

  • Mostafa Abdelmohimen Hussien Abdelmohime

Keywords:

Film Cooling, Two rows, Anti-Vortex, CFD

Abstract

Computational analysis of film cooling effectiveness from two rows of holes inclined with 30o on a flat surface in case of in-line and staggered arrangements has been carried out. The upstream row is supplemented with anti-vortex holes. The addition of anti-vortex holes is presented as a new technique depends on adding two cylindrical holes branching out from the main holes. Three different positions of anti-vortex holes are studied with three different values of velocity ratios. The study is carried out using realizable k-ϵ model in FLUENT commercial code. The numerical model is verified by comparing a single row of film cooling holes results with available experimental works in literature. The results ensure that the staggered arrangement gives higher film cooling effectiveness than the in-line one for all studied velocity ratios. The use of anti-vortex holes increases the film cooling effectiveness. The position of anti-vortex holes shows a significant effect, especially with high velocity ratios.

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Published

2015-04-01

How to Cite

[1]
M. A. H. Abdelmohime, “Numerical Investigation of Film Cooling from Two Rows of Holes with Anti-Vortex Holes Attached to the Upstream Row”, Int. j. eng. technol. innov., vol. 5, no. 2, pp. 87–98, Apr. 2015.

Issue

Vol. 5 No. 2 (2015)

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Articles

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