The effect of film cooling across a flat plate is investigated using the commercial CFD Ansys Fluent tool. The computational domain includes the coolant supply tube and the major mixing zone. A tube L/D of 4 and injection angles of (30o, 60o, and 90o) were employed for blowing ratios of 0.33, 0.5, and 1.67, as well as a density ratio of 1.14. Adiabatic film cooling efficacy distributions were also established for inline and staggered designs. The study's main finding was that when the blowing ratio was 0.33 and the length-to-diameter ratio was the same, the 30o hole had greater efficacy values than the 60o and 90o holes. The most effective blowing ratio was found to be 0.5. The results show that raising the blowing ratio reduces film cooling, with the injected coolant lifting off the wall at a blowing ratio of 1.67 due to an increase in the wall normal momentum. In this part, the numerical results are compared to experimental data.
Author(S) Details
Ali S. Bahr Ennil
Department of Aeronautical Engineering, Engineering Academey Tajoura, Libya.
Abdulhafid M. Elfaghi
Faculty of Mechanical and Manufacturing Engineering, Universiti of Tun Hussein Onn, Malaysia, Malaysia and Department of Aeronautical Engineering, University of Zawia, Libya.
View Book:- https://stm.bookpi.org/NAER-V12/article/view/3836
No comments:
Post a Comment