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정의엽(Eui Yeop Jung),정희윤(Heeyoon Chung),박세진(Sehjin Park),조형희(Hyung Hee Cho) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
In the present study, total cooling effectiveness was obtained by experiment method on a full-coverage film cooling plate. To confirm the conduction effect of film cooling plate, we conducted three experimental cases. These cases used three different conductive materials, which were polycarbonate, Corian, and stainless steel. The test plates had same hole pattern in the three experiment cases. The hole diameter was 5 mm and the angle of film cooling hole was 35 degree. Spacing to hole diameter ratio (p/d) was 3 on the film cooled plate in both the streamwise and spanwise direction. The jet Reynolds number was controlled to 7,000. The detailed temperature distribution on the film cooled surface was measured using the infra-red thermographic technique. Total cooling effectiveness increased with thermal conductivity of film cooling plate. We demonstrated adiabatic film cooling effectiveness for using this research results.