WIT Press


Effect Of Blowing Rate On The Film Cooling Coverage On A Multi-holed Plate: Application On Combustor Walls

Price

Free (open access)

Paper DOI

10.2495/HT040471

Volume

46

Pages

10

Published

2004

Size

413 kb

Author(s)

P. Miron, C. Berat & V. Sabelnikov

Abstract

Multi-holed film cooling systems are the most effective and widely used cooling techniques applied to gas turbine blades and combustor liners to obtain resistance in extremely high temperature operating conditions. This paper reports on measurements in flows generated by jets issuing from a 10:1 scaled multi-holed plate for a blowing ratio varying from 0.2 to 11. The plate geometry is similar to geometries encountered within current combustion chamber walls. The test section has 138 holes arranged on 12 staggered rows. The holes are spaced 6.74 diameters apart in the spanwise direction and 5.84 diameters apart in the downstream direction. The holes angle inclination is 30 degrees with respect to the plate surface. Mean velocity vect

Keywords