EXPERIMENTAL INVESTIGATIONS OF A COMB-LIKE FILM COOLING SCHEME Conference Paper uri icon

abstract

  • This paper presents an experimental investigation of the film cooling performance of a New Hybrid Film Cooling Scheme using Thermochromic Liquid Crystal technique. The new scheme has been designed to improve the film cooling performance of gas turbine airfoils. The scheme includes two consecutive film hole configurations with interior bending. The cooling performance of the new scheme was analyzed across blowing ratios of 0.5, 1.0 and 1.5, at a density ratio of 0.94. The results showed that the new scheme enhanced the local and the laterally averaged film cooling performance in terms of effectiveness, and net heat flux reduction in compared to other film hole configurations. The bending effect of the new scheme throttled the secondary flow causing it to spread widely over the downstream surfaces, hence enhancing the film cooling performance at low and high blowing ratios. The hybrid scheme provided an average heat transfer ratio near unity over the downstream surfaces at low and high blowing ratios.

name of conference

  • 2010 14th International Heat Transfer Conference, Volume 5

published proceedings

  • PROCEEDINGS OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2019, VOL 3B

author list (cited authors)

  • Li, H., Ghaly, W., & Hassan, I.

citation count

  • 0

complete list of authors

  • Li, Hao-Ming||Ghaly, Wahid||Hassan, Ibrahim

publication date

  • January 2019