Open AccessNumerical and experimental investigations on film cooling with single film hole diameter wide trench for improved cooling performance
Author(s) -
Vishal Anand,
K. M. Parammasivam
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1240/1/012079
Subject(s) - trench , bevel , materials science , enhanced data rates for gsm evolution , trailing edge , composite material , optics , optoelectronics , layer (electronics) , structural engineering , computer science , engineering , physics , telecommunications
Trench film cooling employs film holes embedded in slot depression created on the surface with the application of thermal barrier coating. The aim of present investigation is to analyse the film cooling effectiveness (FCE) of single film hole diameter (1D) wide trench, 1D trench with trailing edge modifications and to compare its performance with two film hole diameter wide trench (2D). Results of the study show that single film hole diameter wide trench with bevelled trailing edge modifications produced improved film cooling performance compared to two film hole diameter wide trench and other tested cases. Experimental results show close agreement with computational data. The single film hole diameter wide trench with bevelled trailing edge shows highest local, lateral averaged and spatial averaged FCE. The bevelled model trench delivered higher FCE at all three tested blowing ratios.