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What is Trench Width and Blowing Ratio in Film Cooling about?

This study investigates the effects of trench width and blowing ratio on double-jet film cooling in gas turbines using a numerical approach with the RANS model. The findings indicate that film cooling effectiveness is significantly enhanced with the use of trenches, and both trench width and blowing ratio critically influence cooling performance. An optimal blowing ratio must be selected for a given trench width to balance film cooling effectiveness and heat transfer coefficient.

Author

Cafer Kaan Arslan

Language

EN