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International Journal of Rotating Machinery
Volume 2 (1996), Issue 4, Pages 221-236

Mass Transfer over a Film-Cooled Turbine Blade

Department of Mechanical Engineering, National Taiwan University, Taipei 10764, Taiwan

Copyright © 1996 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A naphthalene sublimation technique was employed to study the mass transfer distributions over a turbine blade surface with secondary flows ejected in the spanwise direction through three rows of equally-spaced injection holes located in the leading edge region. The mass transfer measurements were conducted in a range of blowing ratios from 0.6 to 1.2 at two different mainstream turbulence levels (0.4% and 6.0%) while keeping the exit Reynolds number, Re2, at a constant value of 397,000.