Universiti Teknologi Malaysia Institutional Repository

A detailed study of row-trenched holes at the combustor exit on film-cooling effectiveness

Kianpour, E. and Che Sidik, N. A. (2019) A detailed study of row-trenched holes at the combustor exit on film-cooling effectiveness. Mechanics and Mechanical Engineering, 23 (1). ISSN 1428-1511


Official URL: http://www.dx.doi.org/10.2478/mme-2019-0033


To analyse the effects of cylindrical- and row-trenched cooling holes with an alignment angle of 90 degrees on the film-cooling effectiveness near the combustor end wall surface at a blowing ratio of 3.18, the current research was done. This research included a 3D representation of a Pratt and Whitney gas turbine engine, which was simulated and analysed with a commercial finite volume package Fluent 6.2.26. The analysis was done with Reynolds-averaged Navier–Stokes turbulence model on internal cooling passages. This combustor simulator was combined with the interaction of two rows of dilution jets, which were staggered in the streamwise direction and aligned in the spanwise direction. In comparison with the baseline case of cooling holes, using row-trenched hole near the end wall surface increased the film-cooling effectiveness 44% in average.

Item Type:Article
Uncontrolled Keywords:combustor simulator, dilution hole, film cooling
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:91702
Deposited By: Narimah Nawil
Deposited On:27 Jul 2021 13:46
Last Modified:27 Jul 2021 13:46

Repository Staff Only: item control page