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Parametric study on geometrical arrangement of sister hole

Abdullah, Mohammad Kamil and Firdauz, Amon and Mohd Ali, Mas Fawzi (2014) Parametric study on geometrical arrangement of sister hole. In: International Integrated Engineering Summit (IIES 2014), 1-4 December 2014, Universiti Tun Hussein Onn Malaysia, Johor.


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Modern gas turbines require a sophisticated cooling scheme to remove the heat from its component to ensure it durability. One of the common techniques applied in the cooling scheme is film cooling The present study focuses numerical investigation of an sister cooling hole design. The investigations make use of commercial CFD software, ANSYS CFX. The numerical investigations have been carried out at Reynolds number, Re = 21,000 involving three differens blowing ratios, BR = 0.5, 1.0, and 1.5. Four different cases have been considered; STA, STB STC and SH. The results show promising improvement in terms of film cooling effectiveness with the implementation of sister holes in certain geometrical arrangements

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: film cooling; sister holes; counter rotating vortex pair (CRVP)
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ255-265 Heat engines
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 12 May 2015 08:30
Last Modified: 12 May 2015 08:30
URI: http://eprints.uthm.edu.my/id/eprint/6335
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